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PROGRAM Seventieth Annual Meeting of the AMERICAN DAIRY SCIENCE ASSOCIATION Kansas State University Manhattan, Kansas June 22-25, 1975 PROGRAM COMMITTEE J. L. Albright, Indiana, Chairman R. D. Appleman, Minnesota J. R. Campbell, Missouri C. J. Cruse, Illinois J. E. Legates, North Carolina J. H. Martin, South Dakota Paula McGrew, Louisiana C. L. Norton, Kansas R. L. Sellars, Wisconsin 'GENERAL PROGRAM SATURDAY, JUNE 21 0830 Board of Directors Meeting, Ramada Inn, Room 609 SUNDAY, JUNE 22 1200 to 9~200 Registration, Derby Food Center 1500 Production Division Council Meeting, Call Hall, Room 140 1600 Dairy Foods Division Council Meeting, Call Hall, Room 118 1630 Student Affiliate Division Officers and Ad- visors Meeting, Derby Food Center Con- ferenee Room 1915 to 2030 Association Opelfing Session, University Auditorium Presiding - C. L. Norton, Department of Dairy and Poultry Science Welcome - Roger L. Mitchell, Vice- President for Agriculture, Kansas State University Presidential Address - J. E. Legates, Presi- dent, ADSA Presentation - ADSA D~stinguished Ser- vice Award 2030 to 2200 Informal Reception, Student Union, Ball- room 625
Transcript
Page 1: Program Seventieth Annual Meeting of the American Dairy Science Association Kansas State University Manhattan, Kansas June 22–25, 1975

PROGRAM

Seventieth Annual Meeting of the

AMERICAN DAIRY SCIENCE ASSOCIATION

Kansas State University Manhattan, Kansas June 22-25, 1975

PROGRAM COMMITTEE

J. L. Albright, Indiana, Chairman

R. D. Appleman, Minnesota J. R. Campbell, Missouri C. J. Cruse, Illinois J. E. Legates, North Carolina

J. H. Martin, South Dakota Paula McGrew, Louisiana C. L. Norton, Kansas R. L. Sellars, Wisconsin

'GENERAL PROGRAM

SATURDAY, JUNE 21

0830 Board of Directors Meeting, Ramada Inn,

Room 609

SUNDAY, JUNE 22

1200 to 9~200 Registration, Derby Food Center

1500 Production Division Council Meeting, Call

Hall, Room 140 1600

Dairy Foods Division Council Meeting, Call Hall, Room 118

1630 Student Affiliate Division Officers and Ad-

visors Meeting, Derby Food Center Con- ferenee Room

1915 to 2030 Association Opelfing Session, University

Auditorium Presiding - C. L. Norton, Department of

Dairy and Poultry Science Welcome - Roger L. Mitchell, Vice-

President for Agriculture, Kansas State University

Presidential Address - J. E. Legates, Presi- dent, ADSA

Presentation - ADSA D~stinguished Ser- vice Award

2030 to 2200 Informal Reception, Student Union, Ball-

room

625

Page 2: Program Seventieth Annual Meeting of the American Dairy Science Association Kansas State University Manhattan, Kansas June 22–25, 1975

626 J O U R N A L O F D A I R Y S C I E N C E

2030 to 2"200 Student Affiliate Reception, Student Union,

Bluemont Room

MONDAY, JUNE 23

0800 to 1800 Registration, Information and Mail, ADSA

Headquarters, 2nd Floor Concourse, Student Union

0800 to 1700 Divisional and Business Meetings

0900 to 1000 Student Affiliate Division Business Meeting,

Student Union, Big 8 Room

0930 to 1200 Prostaglandins in Bovine Reproduction,

Symposium (Productiou Division), Stu- dent Union, Forum Hall

1300 to 1700 Undergraduate Student Paper Presentation

Contest, Student Union, Big 8 Room 1330 to 1630

Shelf Life of Dairy Products, Symposium (Industry and Business Section), Card- well 103

1330 to 1630 Nutritional and Processing Problems from

Use of Phosphates in Foods, General Symposium (Dairy Foods Research See- tion) 1, Cardwell 101

1330 to 1630 Milk Synthesis, Symposium (Joint: Dairy

Foods Division and Production Division), Cardwell 102

I600 to 1700 International Delegates Reception, Student

Union, Bluemont Room 1630 to 1700

Dairy Foods Research Section, Business Meeting, Cardwell 102

1700 Chicken Barbecue, Derby Food Center

1930 What Industry Expects of College Trained

Dairy Graduates, General Symposium (Joint: Dairy Foods, Production, and Stu- dent Affiliate Divisions), Student Union, Forum Hall

X Sponsored ill part by funds from the National Dairv Council, Chicago, IL. JOURNAL OF DAIRY SCIENCE VOL. 58, NO. 4

TUESDAY, JUNE 24

0800 to 1400 Registration, Information and Mail, ADSA

Headquarters, 2nd Floor Concourse, Student Union

0800 to 1700 Divisional and Business Meetings

0800 to 1100 Biological Agents Causing Infections in

Dairy Cattle, Health Symposium (Prod- uction Division), Student Union, Forum Hall

0830 to 1000 Update on Nutritional Labeling, Symposium

(Industry and Business Section), Card- well 103

0900 Student Affiliate Division, Election of

Officers, Student Union, Big 8 Room 1000 to 1100

Industry and Business Section Business Meeting, Cardwell 103

1100 to 1200 Dairy Foods Division, Business Meeting,

Cardwell 103 1100 to 1200

Production Division, Business Meeting, Stu- dent Union, Forum Hall

1300 to 1700 Tour, Student Affiliate Division

1300 to 1700 Cultured Products, Symposium (Industry

and Business Section), Cardwell 103 1330 to 1530

Department Chairman Meeting, Student Union, Big 8 Room

1330 to 1630 The Impact of Heat Stable Microbial

Enzymes in Food Processing, Symposium (Dairy Foods Research Section), Card- well 101

1930 Awards Program and Installation of Officers,

University Auditorium

WEDNESDAY, JUNE 25

0800 to 1700 Information and Mail, ADSA Headquarters,

2nd Floor Concourse, Student Union 0800 to 1700

Divisional and Business Meetings

Page 3: Program Seventieth Annual Meeting of the American Dairy Science Association Kansas State University Manhattan, Kansas June 22–25, 1975

ASSOCIATION AFFAIRS 6 2 7

0800 to 0900 Student Affiliate Division Business Meeting

and Installation of Officers, Student Union, Big 8 Room

0800 ,to 1045 Dairying in a Competitive Economy, Sym-

posium (Production Division), Student Union, Forum Hall

0800 to 1100 Use of Milk Derivatives in Other Foods,

Symposium (Joint: Industry and Busi- ness and Dairy Foods Research Sections),

Cardwell 101 1100 to 1200

Association Business Meeting, Student Union, Forum Hall

1215 to 1345 Student Affiliate Division Awards Ltmeh-

eon, Student Union, Main Ballroom

1330 to 1630 Nutrient Requirements of Dairy Cattle,

Symposium (Produetion Division), Stu- dent Union, Forum Hall

LADLES' PROGRAM

Hospitality Room, Lobby Ford Hall Dor- mitory, open on: Sunday, June 22 1400 to 1700 Monday, June 23 0900 to 1100 and 1430

to 1630 Tuesday, June 24 0900 to 1100 and 1430

to 1630 Wednesday, June 25 0900 to 1100

MONDAY, JUNE 23

1230 to 1430 Luncheon, Student Union, Mafia Ballroom

TUESDAY, JUNE 24

0845 to 1630 Tour, Eisenhower Center,

Town and Fort Riley Old Abilene

WEDNESDAY, JUNE 25

0900 to 1100 Mini Tours, points of interest in Manhattan,

including McCall's Pattern Company, Goodnow House Historical Museum, and Riley Coun~ Historical Museum.

YOUTH PROGRAM

SUNDAY, JUNE 22

YOUTH, AGES 7 TO 12 (must have com- pleted first grade to participate)

1900 to 2100 Movie, refreshments, Youth Lounge, Base-

ment of Haymaker Hail Dormitory TEENS (must have completed seventh grade

to participate) 1930 to 2200

Dance, refreshments, Teen Lounge, Base- ment of West Hall Dormitory

MONDAY, JUNE 23

NURSERY (ages 3 to 6) 0930 to 1600

Supervised nursery care, Basement Lounge, Ford Hall Dormitory. Lunch and snacks provided

YOUTH 0800 to 1700

Organized activities, assemble in Youth Lounge, Basement of Haymaker Hall

JOURNAL OF DAIRY SCIENCE VOL. 58, NO. 4

Page 4: Program Seventieth Annual Meeting of the American Dairy Science Association Kansas State University Manhattan, Kansas June 22–25, 1975

628 J O U R N A L O F D A I R Y S C I E N C E

Dormitory. Lunch provided. TEENS 0800 to 1700

Recreational activities, assemble in Teen Lounge, Basement of West Hall Dormi- tory. Lunch provided.

TUESDAY, JUNE 24

NURSERY 0830 to 1700

Supervised nursery care, Basement Lounge, Ford Hall Dormitory. Lunch and snacks provided.

YOUTH 0800 to 1700

Organized activities, assemble in Youth Lounge, Basement of Haymaker Hall Dormitory. Lnnch provided.

1930 to 2130 Movie, refreshments, Youth Lounge, Base-

ment of Haymaker Hall Dormitory. TEENS 0800 to 1700

Recreational activities, assemble in Teen Lomage, Basement of West Hall Dormi- tory. Lunch provided.

2000 to 2200 Reeorded music and refreshments, Teen

Lounge, Basement of \Vest Hall Dormi- tory.

WEDNESDAY, JUNE 25

NURSERY No nurserv care scheduled.

YOUTH 0930 to 1200

Youth Lounge open, Basement of Haymaker Hall. Parents reponsib|e for supervision of their children.

TEENS 0930 to 1200

Teen Lounge open, basement of West Hall. No supervision provided. Recrea- tional facilities available in Student Union.

STUDENT AFFILIATE DIVISION PROGRAM

SUNDAY, JUNE 22

1630 Student Officers' and Advisors' Meeting,

Derby Food Center Conference Room. 2030 to 2200

Student Affiliate Reception, Student Union, Bluemont Room

MONDAY, JUNE 23

0900 to 1000 Business Meeting, Student Union, Big 8

Room 1300 to 1700

Undergraduate Student Paper Presentation Contest, Student Union, Big 8 Room

1930 What Industry Expects of College Trained

Dairy Graduates, General Symposium, (Joint: Dairy Foods, Production and Stu- dent Affiliate Divisions),. Student Union, Forum Hall. J. H, Martin, Moderator.

IOUV, NAL OF DAIRY SCIIiNCE VOL. 58, NO. i

(see Dairy Foods Research Section Mon- day program)

TUESDAY, JUNE 24

0900 Election of Officers, Student Union, Big 8

Room 1300 to 1700

Tour, Kansas Artificial Breeding Service Unit and the USDA Grain Marketing Research Center

WEDNESDAY, JUNE 25

0800 to 0900 Division Business Meethlg and Installation

of New Officers, Student Union, Big 8 Room

J215 to 1345 Awards Luncheon, Student Union, Main

Ballroom

Page 5: Program Seventieth Annual Meeting of the American Dairy Science Association Kansas State University Manhattan, Kansas June 22–25, 1975

INDUSTRY AND BUSINESS SECTION PROGRAM

MONDAY, JUNE 23

0900 to 1115 Submitted papers, Cardwelf 103. H. E.

Randolph, Chairman. 0900 B1. Starters for cottage cheese whey

fermentation. L. E. Redel, W. Smith, and J. B. Mickle*, Oklahoma State University, Stillwater.

0915 B2. Optimization of cottage cheese manufacture. C. H. White* and B. W. Ray,

University of Georgia, Athens. 0930 B3. Hollow fiber ultrafiltration of cottage

cheeso whey. B. R. Breslau*, R. A. Cross, and B. M. Kilcullen, Romicon, Inc., Woburn, MA

0945 ]34. Production Of a crystal clear, bland tasting protein solution from cheese whey.

B. R. Breslau, R. A. Cross*, and J. Goulet, Romicon, Inc., Woburn, MA, and Laval University, Quebec.

1000 Break. 1015 B5. Automation of the plate loop method.

M. G. O'Keeffe* and S. Jensen, Foss America, Inc., Fishkill, NY.

1030 B6. Reducing noise levels in dairy plants. M. E. Gregory* and L. H. Royster, North

Carolina State University, Raleigh. 1045 B7. Evaluation of external information

needs of Ohio dairy firms. J. B. Lindamood, Ohio State University, Columbus.

1100 B8. Dairy Research Inc.'s technical in- formation center. W. W. Menz, United

Dairy Industry Association, Rosernont, IL.

1115 B9. Acidophilus food products. M. L. Speck, North Carolina State University,

Raleigh. 1330 to 1630

Shelf Life of Dairy Products, Symposium, Cardwell 103. Sidney Barnard, Chairman.

1330 Starters to control growth of psychro- trophs and pathogens. S. F. Gilliland, North

Carolina State University, Raleigh. 1410 Mesophilic sporeformers in milk prod-

* Author presenting paper.

ucts. J. H. Martin, South Dakota State University, Brookings.

1450 Psychrotrophic sporeformers" a potential shelf life problem. E. M. Mikolajcik, Ohio

State University, Columbus. 1530 Improving shelf life of dairy products.

Larry Claypool, Mid-America Dairymen, Springfield, MO.

1610 Factors affecting shelf life of butter. J. G. Parsons, South Dakota State University,

Brookings. 1930 What Industry Expects of College

Trained Dairy Graduates, General Symposi- um. (Joint: Dairy Foods, Production and Student Affiliate Divisions), Student Union, Fornm Hall. J. H. Martin, Moderator. See Dairy Foods Research Section Monday program)

TUESDAY, JUNE 24

0830 to 1000 Update on Nutritional Labeling, Syml~osium,

Cardwell 103. G. H. Hartman, Chairman. 0830 FDA's approach to consumer education.

Lorena Myers, Consumer Affairs Officer, RDA Region VII, Kansas City, MO.

0900 National Dairy Council's approach to consumer education. A. F. Rhoads, National

Dairy Council, Chicago, IL. 0930 Industry's approach to nutritional label-

ing. Lee Roland, Borden, Inc., Houston, TX. 1000 to 1100

Industry and Business Section, Business Meeting. Cardwdl 103. J. H. Martin, presiding.

1100 to 1200 Dairy Foods Division, Business Meeting.

Cardwell 103. R. T. Marshall, presid- ing.

1300 to 1700 Cultured Products, Symposium, Cardwell

103. Vance Grosset, Chairman. 1300 Cultured products: trends and potential.

George Muck, Dean Foods Company, Rock- ford, IL.

1340 Future of direct acidification. Robert

629

Page 6: Program Seventieth Annual Meeting of the American Dairy Science Association Kansas State University Manhattan, Kansas June 22–25, 1975

6 3 0 JOURNAL OF DAIRY SCIENCE

Schafer, Vitex/American, St. Louis, MO. 1430 Utilization of cheese whey for wine pro-

duction. F. W. Bodyfelt and H.-Yang, Oregon State University, Corvallis.

1500 Cottage cheese yields. Ross Mickelsen, Kansas State University, Manhattan.

1540 New developments in cultures. V. W. Christensen, Marschall Division, Miles Labs.

Inc., Madison, WI. 1630 Quality of yogurt. Manfred Kroger,

Pennsylvania State University, University Park.

WEDNESDAY, JUNE 25

0800 to 1100

Use of Milk Derivatives in Other Foods, Symposium (Joint: Industry and Business and Dairy Foods Research Sections). Cardwell 101. Floyd Bodyfelt, Chairman.

0800 Whey. Kenneth Spurgeon, South Dakota State University, Brookings.

0835 Whey protein concentrates. Charles Morr, Ralston Purina Company, St. Louis,

MO. 0910 Lactose. T. A. Nickerson, University of

California, Davis. 0945 Casein. Charles H. Pyne, Milk Proteins,

Inc., Detroit, MI. 1020 Milk fat and cheese. T. E. Everson,

Dairyland Food Labs., Waukesha, WI.

DAIRY FOODS RESEARCH SECTION PROGRAM

MONDAY, JUNE 23

0800 to 1200 Section A: Microbiology, Cardwell 101.

L. L. MeKay, Chairman. 0800 DFR1. Microbial contamination of

Iranian white cheese produced from raw milk. M. Mehran*, M. Behboodi, and A. Rouhbakhsh-Kh, Faculty of Agriculture, Karaj, Iran.

0815 DFR2. Survival of font-and-mouth disease virus in cheddar cheese. J. H. Black-

well*, Plum Island Animal Disease Center, ARS, USDA, Greenport, NY.

0830 DFR3. Effect of incubation ~emperature and time on standard plate colmts of

pasteurized milk. J. A. Collins and T. E. Patrick*, University of Arkansas, Fayette- ville.

0845 DFR4. Incubation of plates at 30 C for 3 days versus 32 C for 2 days. F. Eugene

Nelson* and Lee M. Kelley, University of Arizona, Tucson.

0900 DFRS. Effect of heat treatments on survival and growth of a psychrotrophic

JOURNAL OF DAIRY SCIENCE VOL. 58, No. 4

bacteria in milk. Lana S. Weckback and B. E. Langlois*, University of Kentucky, Lexington.

0915 DFR6. Modification of milk proteins by psychrotrophic bacteria. N. J. DeBeukelar,

R. L. Bradley, Jr.*, and E. H. Marth, University of Wisconsin, Madison.

0930 DFR7. In/iueuce of growth temperature on the glucose metabolism of a psychro-

trophic strain of Bacillus cereus. B. H. Chung, R. Y. Cannon*, and R. C. Smith, Auburn University, Auburn, AL.

0945 DFR8. Cottage, Swiss, and Italian bulk culture manufaoture with a whey-based

bacteriophage inhibitory medimn under pH control. W. L. Chen and G. H. Richardson*, Utah State Univers'ty, Logan.

1000 DFR9. Coenzyme A activity of lactic streptococci. Y. Park*, E.M. Mickolajcik,

and T. Kristofferson, Oh'o State Univer- sity, Columbus.

Author presenting paper.

Page 7: Program Seventieth Annual Meeting of the American Dairy Science Association Kansas State University Manhattan, Kansas June 22–25, 1975

ASSOCIATION AFFAIRS 631

1015 DFR10. Characterization of plasmids from three strains of Streptococcus lactis.

J. D. Efstathiou* and L. L. McKay, University of Minnesota, St. Paul.

1030 DFRll . Examination of possible associa- tion of plasmid deoxyribonucleic acid with

lactose metabolism in Streptococcus cre- moris By D. G. Anderson* and L. L. McKay, University of Minnesota, St. Paul.

1045 DFR12. Acid production of mixed cul- tures of Lactobacillus bulgaricus and Strepto-

coccus thermophilus at 37 C as an indica- tor of growth at 37, 21, and 14 C. Nancy J. Moon*, G. W. Reinbold, and E. G. Hammond, Iowa State University, Ames.

1100 DFR13. The influence of Lactobacillus bulgaricus on commercial Swiss cheese.

S. L. Biede*, G. W. Reinbold, and E. G. Hammond, Iowa State University, Ames.

1115 DFR14. Spray drying of yogurt and related cultures. R. S. Porubcan* and

B. L. Sellars, Chr. Hansen's Laboratory, Inc., Milwaukee, WI.

1130 DFR15. Inhibitory effect of yogurt components upon the proliferation of ascites

tumor cells. R. E. Farmer, K. M. Shahani*, and G. V. Reddy, University of Nebraska, Lincoln.

1145 DFR16. The effect of lactic acid bacteria and direct addition of acids on the rnicroflora

of colostrnm. J. A. Collins* and T. E. Patrick, University of Arkansas, Fayette- ville.

0800 to 1100 Section B: Chemistry, Cardwell 102.

T. Richardson, Chairman. 0800 DFR17. Trace metals and protein in

Califcmaia market milk. J. C. Bruhn and A. A. Franke*, University of California, Davis.

0815 DFRI8. Incorporation of oxidized flavors into normal milk from distillates of

eopper- or sunlight-treated milk. R. S. Mehta* and R. Bassette, Kansas State University, Manhattan.

0830 DFR19. Affinity chromatography as a tool for the isolation of milk phosphatase.

Y. Kuzuva. A. Kilara*, F. W. Wagner, and K. M. Shahani, University of Nebras- ka, Lincoln.

0845 DFR20. Measuring the development of lipase flavor in butter. L. I. Be!l*, J. G.

Parsons, South Dakota State University, Brookings.

0900 DFR21. Effect of floureseent light on the localization and distribution of riboflavin

in homogenized, pasteurized cow's milk. F. Y. Maniere* and P. S. Dimick, Pennsylvania State University, University Park,

0915 DFR22. Tri~lyceride interference during colorimetric milk cholesterol determination.

K. C. Bachman* and Jan-Hat Lin, Uni- versity of Florida, Gainesville.

0930 DFR23. Inhibition of cholesterol bio- synthesis bv bovine milk, cultured butter-

milk, and orotic acid. B. A. Bernstein*, T. Richardson, and C. H. Amundson, University of Wisconsin, Madison.

0945 DFR24. Colorimetric estimation of lactose and its hydrolytic products. T. A.

Niekerson*, I. "F. Vujieic, and A. Y. Lin, University of California, Davis.

1000 DFR25. Incorporation of lactose into the g-casein fraction resulting from ultra-high temperature treatment of skim milk. L. G. Turner, A. P. Hansen*, and H. E. Swaisgood , North Carolina State Univer- sity, Raleigh.

1015 DFR26. Compositional changes in iso- electric casein heated in various model

systems. A. M. E1-Negoumy, Montana State University, Bozeman.

1030 DFR27. Comparison of Babcock and Irma methods for determining fat in milk

from cows fed protected lipid supple- ment, A. A. Franke*, W. L. Dunkley, and L. M. Smith, University of California, Davis.

1045 DFR28. Mieroconstituents in milk dialysate extractable with lipid solvents. M.

M. A. A1-Shabibi*, C. J. Argoudelis, and J. Tobias, University of Illinois, Urbana.

1330 to 1630 Section C: Nutritional and Processing

Problems from Use of Phosphates in Foods 1, General Symposium, Cardwell 101. H. H. Draper, Chairman.

1330 Phosphate: its assimilation and role in animal metabolism. R. M. Forbes, Univer-

sity of Illinois, Urbana.

1 Sponsored in part by funds from the National Dairy Council, Chicago, IL.

JOURNAL OF DAIRY SCIENCE VOL. 58, NO. 4

Page 8: Program Seventieth Annual Meeting of the American Dairy Science Association Kansas State University Manhattan, Kansas June 22–25, 1975

6 3 2 JOURNAL OF DAIRY SCIENCE

1415 Phosphates as ingredients in processed dairy foods. R. H. Ellinger, Kraft Foods

Company, Division of IG-aftco, Inc., Chicago, IL.

1500 Influence of dietary phosphate on bone resorption in adult animals and man. H. H.

Draper, University of Guelph, Ontario. 1545 The effect of phosphate on bone turn-

over. Jenffer Jowsey, Mayo Clinic, Rochester, MN.

1330 to 1630 Section D: Milk Synthesis, Symposium,

see Milk Synthesis Program. 1630 to 1700

Dairy Foods Research Section Business Meeting, Cardwell 102. R. L. Sellars, presiding.

1930 What Industry Expects of College Trained

Dairy Graduates, General Symposium, (Joint: Dairy Foods, Production and Stu- dent Affiliate Divisions), Student Union, Forum Hall. J. H. Martin, Moderator. Participants: W. R. Cheek, Ralston Purina Company, St. Louis, MO; Robert Walton, American Breeders' Service, De Forest, WI; G. A. Muck, Dean Foods, Rockford, IL; Claude Harper, Beatrice Foods, Chicago, IL.

TUESDAY, JUNE 24

0800 to 1015 Section A: Products, Cardwell 101. G. W.

Reinhold, Chairman.

0800 DFR29. Vitamin-B content of cultured and acidified sour cream. A. M. Joe,

K. M. Shahani, and A. Kilara*, Uni- versity of Nebraska, Lincoln.

0815 DFR30. Comparison of calcium, mag- nesium, and phosphorus contents of cul-

tured and acidified cottage cheese and whey. D. K. Sinha*, K. M. Shahani, A. Kilara, and R. M. Hill, University of Nebraska, Lincoln.

0830 DFR31. Manufacture of washed curd cheese from milk with a reduced fat content.

D. D. Deane* and E. T. Dolan, Uni- versity of Wyoming, Laramie.

0845 DFR32. Manufacture of cheddar cheese from milk with added glucose and from

hydrolyzed lactose milk. G. J. Wood- JOURNAL OF DAIRY SCIENCE VOL. 58, NO. 4

ward* and F. V. Kosikowski, Cornell University, Ithaca, NY.

0900 DFR33. A new type acid whey con- centrate product derived from ultrafiltra-

tion. F. V. Kosikowski*, Cornell Univer- sity, Ithaca, NY.

0915 DFR34. Marmfacture of Queso Blanco using acid whey concentrates as coagulants.

R. Hirschl* and F. V. Kosikowski, Cornell University, Ithaca, NY.

0930 DFR35. Mozzarella, cottage, and ched- dar cheese from ultrafiltrated retentates

concentrated to maxim. H. R. Covaee- vich* and F. V. Kosikowski, Comell Uni- versity, Ithaca, NY.

0945 DFR36. Development of dairy-based foods for pre-adolescent kidney patients.

J. T. Bakel* and S. M. Marx, Univer- sity of Minnesota, St. Paul.

1000 DFR37. Consumer acceptability of powdered peanut butter flavor for ice

cream. A. P. Hansen*, M. W. Hoover, and L. G. Turner, North Carolina State University, Raleigh.

0800 to 1100 Section B: Enzymes. Cardwell 102. J. H.

Nelson, Chairman. 0800 DFR38. Development of a lecithin agar

for detection of microbial phospholipases. G. L. Chrisope*, C. W. Fox, and R. T. Marshall, University of Missouri, Colum- bia.

0815 DFR39. Incidence and types of phos- pholipase C-producing bacteria in fresh and

spoiled ho~nogenized milk. C. W. Fox*, G. L. Chrisope, and R. T. Marshall, University of Missouri, Columbia.

0830 DFR40. Characterization of phos- pholipases C produced by psychrotrophie

bacteria from homogenized milk. C. W. Fox* and R. T. Marshall, University of Missouri, Columbia.

0845 DFR41. Interactive effects of lipase and microbial phospholipase C on fat globules of milk and model milk. G. L. Chrisope* and R. T. Marshall, University of Mis- souri, Columbia.

0900 DFR42. Action of heat-stable Pseud- omonas fluorescens protease on sterilized

skim milk. A. C. Malik and A. M. Swan- son*, University of Wisconsin, Madison.

Page 9: Program Seventieth Annual Meeting of the American Dairy Science Association Kansas State University Manhattan, Kansas June 22–25, 1975

ASSOCIATION AFFAIRS 633

0915 DFR43. Heat inactivation of milk clot- ting enzymes, D. B. Hyslop*, A. M. Swan-

son, and D. B. Lurid, University of Wisconsin, Madison.

0930 DFR44. Cheddar cheese trials with Mucor mlehei enzyme. N. Dinesen*, Chr.

Hansen's Laboratory, Inc., Milwaukee, WI, and D. B. Emmons, D. Beckett, B. Reiser, E. Larmond, Food Research Institute, Canada Department of Agricul- ture, Ottawa, and D. M. Irvine, Uni- versity of Guelph, Ontario.

0945 DFR45. Evaluation of fungal esterases in the manufacture of Fontina and Romano

cheeses. H. J. Peppier*, Universal Foods Corp., Milwaukee, WI, and J. G. Dooley and H. T. Huang, Wallerstein Co., Morton Grove, IL.

0830 to 1000 Section C: Milk Synthesis, see Milk Synthesis

Program. 1000 DFR46. Preparation of an active form

of immobilized rennin. R. J. Brown and H. E. Swaisgood*, North Carolina State University, Raleigh.

1015 DFR47. Immobilization of sulfhydryl oxidase and some of its kinetic properties.

H. E. Swaisgood*, V. G. Janolino, and P. S. Patrick, North Carolina State Uni- versity, Raleigh.

1030 DFR48. Su.peroxide dismutase in bovine milk. C. L. Hicks*, University of Kentucky,

Lexington, and M. Korycka-Dahl and T. Richardson, University of Wisconsin, Madison.

1045 DFR49. Antigenicity of bovine milk zanthine oxidase in guinea pigs. J. P.

Zikakis* and S. J. Rzueidlo, University of Delaware, Newark.

t100 to 1200 Dairy Foods Division Business Meeting,

Cardwell 103. R. T. Marshall, presiding. 1330 to 1630

Section D: The Impact of Heat Stable Microbial Enzymes in Food Processing, Symposium, Cardwell 101. A. M. Swan- son, Chairman.

1330 Significance of heat stable enzymes in food processing. A. M. Swanson, University

of Wisconsin, Madison. 1400 Microbial sources of proteolytie er~zymes.

E. H. Marth, University of Wisconsin, Madison.

1435 Specificity and action mechanism of pro- teolytic enzymes. M. M. Sternberg, Miles

Laboratories, Elkhart, IN. 1520 Heat resistant proteolytic enzymes from

bacterial sources. M. L. Speck, North Carolina State University, Raleigh.

1600 Heat resistant milk clotting enzymes from ftmgal sources. C. A. Ernstrom, Utah

State University, Logan.

WEDNESDAY, JUNE 25

0800 to I100 Section A: Use of Milk Derivative~ in

Other Foods, Symposium, (Joint: In- dustry and Business and Dairy Foods Research Sections). Cardwell 101. F. Bodyfelt, Chairman. (See Industry and Business Section Wednesday program.)

1100 to 1200 ADSA General Business Meeting, Student

Union, Forum Hall. J. E. Legates, presiding.

1330 to 1515 Section B: Proteins, Cardwell 102. R. McL.

Whitney, Chairman.

1330 DFR50. "Chicken-breast muscle" mica'o- structure of cheddar cheese. M. Kalab*

and D. B. Emmons, Food Research hstitttte, Research Branch, Agriculture Canada, Ottawa, Ontario.

1345 DFR51. Preparation of soluble heat- denatured whey protein. H. W. Modler

and D. B. Emmons*, Food Research In- stitute, Research Branch, Agriculture Canada, Ottawa, Ontario.

1400 DFR52. Factors affecting measurement of tmdenatured serum protein nitrogen in

cheese whey by the Harland-Ashworth test. J, Reyes* and C. A. Ernstrom, Utah State University, Logan.

1415 DFR53. Automated modified Lowry method applied to milk. Y. W. Huang, R.

T. Marshall*, M. E. Anderson, and C. Charoen, University of Missouri, Colum- bia.

1430 DFR54. Continuous flow analysis of milk proteins using ultra-violet spectroscopy.

R. F. Wilkinson* and G. H. Richardson, Utah State University, Logan.

1445 DFR55. Effect of fluorescent light on l~he amino acid composition of serum proteins

from homogenized milk. P. S. Dimick, JOURNAL OF DAIRY SCIENC/~ VOL. 28, NO. 4

Page 10: Program Seventieth Annual Meeting of the American Dairy Science Association Kansas State University Manhattan, Kansas June 22–25, 1975

Pennsylvania State University, University Park.

1500 DFR56. Properties of casein after limited acid hydrolysis. Christos Kehagias*

and P. M. T. Hansen, Ohio State Univer- sity, Columbus.

DFR56A. Hydrolysis of fi-casein by rennin, L. K. Creamer, New Zealand Dairy Research

Institute, Palmerston North. 1330 to 1515

Section C: Processing, Cardwell 103. G. H. Hartman, Jr., Chairman.

1330 DFR57. Effect uf process variables on whey concentration by reverse osmosis.

A. Patel*, W. J. Harper, and J. F. Huff, Ohio State University, Columbus.

1345 DFR58. Utilization of cottage cheese whey fractions and/or derivatives in ice

cream. M. Loewenstein*, M. B. Reddy, C. H. White, S. J. Speck, and T. A. Lunsford, Universitv of Georgia, Athens.

1440 DFR59. Manufacture of cottage cheese curd from ultra-high temperature pro-

cessed milk. W. K. Stone*, P. M. Large, and W. C. Thomas, Virginia Polytechnic institute and State University.

1415 DFR60. Effects of different temperatures and holding times on a-lactalbumin and fl-

lactoglobulin of skim milk. T. S. Melo, A. P. Hansen*, and V. A. Jones, North Carolina State University, Raleigh.

1430 DFR61. Effects of double homogeniza- tion of ultra-pasteurized 10% cream. W. S.

Cheng* and C. S. Gelda, Industrial Laboratories o.f Canada, Tillsonburg, On- tario.

1445 DFR62. An emulsion stabilRy index (ESI) technique for sterile liquid products.

L. C. True*, K. C. Goodnight, and G. H. Hartman, Jr., Mead Johnson Research Center, Evansville, IN.

1500 DFR63. Automatic fat standardization of raw milk with the Darison Composition

Controller. R. J. Wagner* and W. C. Winder, University of Wisconsin, Madi- son.

MILK SYNTHESIS PROGRAM (Joint with Dairy Foods

1330 to 1630 Section D: Milk Synthesis, Symposium,

Cardwell 102. H. M. FarreU, Jr., Chair- m a i l .

1330 Uptake of amino acids by lactating mammary gland. Carl Davis, University

of Illinois, Urbana. 1430 Isolation and role of specific messenger-

RNA for milk proteins in guinea-pig mammary gland. Peter Campbell, Uni- versity of Leeds, Engla~ld.

1530 Phosphorylation of casein by the lac- tating mammary gland. Elizabeth Bingham,

USDA, ERRC, Wyndmoor, PA,

0830 to 1000 Section C: Milk Synthesis, Student Union

206. Harry Farrell, Jr., Chairman. 0830 DFR64. Changes in plasma triglyceride

fatty acids during lactation. R. E. Whit- church and R. W. Wallenius*, Washing- ton State University, Pullman.

and Production Divisions)

0845 DFR65. Effects of alzomasal infusions of glucose or sodium propionate on milk

yield and composition. R. A. Frobish* and C. L. Davis, University of Illinois, Urbana.

0900 DFR66. Gluconeogenesis in lactating cow mammary tissue. R. A. Scott*, D.

E. Bauman, and J. H. Clark, University of Illinois, Urbana.

0915 DFR67. The effect of concurrent preg- nancy or handling stress on successive lac-

tations in mice. L. J. Wible* and R. R. Anderson, University of Missouri, Colum- bia.

0930 DFR68. Effect of carnitine on milk production and plasma glucose of cows

during early lactation in winter or summer. C. R. Staples, D. W. Kellogg*, and D. D. Miller, New Mexico State University, Las Cruces.

0945 DFR69. Relation of mammary indices to body weight in mice to cattle. R. R,

Anderson, University of Missouri, Colum- bia.

634

Page 11: Program Seventieth Annual Meeting of the American Dairy Science Association Kansas State University Manhattan, Kansas June 22–25, 1975

PRODUCTION DIVISION PROGRAM

MONDAY, JUNE 23

0800 to 0915 Seetion A" Physiology 1: General, Student Un-

ion Forum Hall. J. A. Lineweaver, Chair- man. 0800 P1. Mammary gland development in

first gestation of dairy heifers. J. I. Poffen- barger* and E. W. Swanson, University of Tennessee, Knoxville.

0815 P2(G). Effect of summer modifications in a freestal] shelter on milk and plasma constituents in dairy cattle. A. B. Zook*, J. W. Fuquay, W. E. Poe, W. H. Brown, and L. E. Chopin, Mississippi State Uni- versity, State College.

0830 P3(G). Cytological effect of plasma hormones on mammary epithelial devel- opment in vitro. S. C. Nickerson* and C. W. Heald, Virginia Polytechnic Institute and State University, Blaeksburg.

0845 P4(G). Efficacy of reserpine during hormonal induction of lactation in cows. R. J. Collier*, W. J. Croorn, D. E. Bau- man, and R. L. Hays, University of Illi- nois, Urbana.

0900 P5(G). Plasma calcium and co~tisol at parturition in dairy cows. R. L. Horst*, J. P. Marquardt, and N. A. Jorgensen, University of Wisconsin, Madison.

0800 to 1200 Section B: Feeding and Management: Calf nu-

trition, Student Union Room 212. D. E. Ot- terby and W. J. Miller, Chairman. 0800 P6. Comparing methods of storing bar-

ley for feeding to dairy calves. G. D. Marx, University of Minnesota, Crook- stor~.

0815 1>7. Steam processed flaked wheat (Siete Cerros) for dairy calves. J. D. Schuh*, W. H. Hale, and J. R. Gebert, University of Arizona, Tucson.

0830 P8. Effects of calf starters with differ- ent protein percents on growth and rumen development of Holstein calves. H. L.

*Author presenting paper. (G) Graduate student contest paper.

635

Henschel* and H. D. Radloff, University o~ Wyoming, Laramie.

0845 P9. Soy protein concentrate in milk re- placers for the calf. I. O. Akinyele*, R. B. Rindsig, J. G. Velu, and K. E. Harshbar- ger, University of Illinois, Urbana.

0900 P10. Fish flour as an ingredient of milk replacer. H. A. Ramsey, North Carolina State University, Raleigh.

0915 Pl l . Percents and types of fat in calf milk replacer. R. Bouchard* and J. B. Stone, Research Station, Agrieultm-e Can- ada, Lennoxville, Quebec, and University of Guelph, Ontario.

0930 Break. 0945 P12(G). Growth alld feed efficiency

of young calves fed a milk replacer, "waste" milk or fermented eolostrum. Abu Bakar Chik*, A. S. Achacoso, D. L. Evans, and L. L. Rusoff, Louisiana State University, Baton Rouge.

1000 P13(G). Performance of baby calves fed fermented or acidifed colostrum. H. W. Polzin*, D. E. Otterby, and D. G. Johnson, University of Minnesota, St. Paul, and West Central Experiment Sta- tion, Morris.

1015 P14. Compositional changes and mi- crobiology of bovine colostrum naturally fermented, and preserved with propionic acid and with formaldehyde. R. B. Rind- sig* and J. G. Janeeke, University of Illi- nois, Urbana.

1030 P15. Evaluation of composition and preparation of ferrnented colostrum. G. R. Seidel and P. R. Shellenberger*, Penn- sylvania State University, University Park.

1045 P16. Fermented colostrum as a re- placement for whole milk in the diet of dairy calves. G. van den Brock and P. R. Shellenberger*, Pennsylvania State Uni- versity, University Park.

1100 P17. Feeding direct acidified, cultured, and natural fermented colostrtma to dairy calves. J. R. Hall and L. B. Daniels*, Uni- versity of Arkansas, Fayetteville.

1115 P18. Evaluation of fermented colos- trum fed at 1:1, 2:1, and 3:1 dilutions. compared to whole milk. R. B. Rindsig,

Page 12: Program Seventieth Annual Meeting of the American Dairy Science Association Kansas State University Manhattan, Kansas June 22–25, 1975

6 3 6 JOURNAL OF DAIRY SCIENCE

University of Illinois, Urbana. 1130 P19. Effects of dilution and abrupt

changes in diet on calves' fed fermented colostrum. H. W. Polzin*, D. E. Otterby, and G. D. Marx, University of Minnesota, St. Paul, and Northwest Experiment Sta- tion, Crookston.

1145 P20. Effect of antibiotic treatment on fermentation of mastitic milk. J. E. Keys*, R. E. Pearson, and L. A. Fulton. Animal Physiology and Genetics InstiOate, ARS, USDA, Beltsville, MD.

0845 to 1130 Section C: Feeding and Management: Rumi-

nant fermentation and protein metabolism, Student Union Little Theatre. R. L. Bald- win, Chairman. 0845 Invitational Paper. Formation and uti-

lization of products of ruminant digestion: An overview and current state of the art. R. L. Baldwin, University of California, Davis.

0915 P21. A model of nitrogen utilization for ruminants. D. R. Mertens, Iowa State University, Ames.

0930 P22. Nitrogen utilization by lactating dairy cows. T. E. Aitchison*, D. R. Mer- tens, and A. D. McGilliard, Iowa State University, Ames.

0945 P23. Protein degradation by rumen mi- crobes maintained in continuous culture. H. H. Li Pun and L. D. Salter*, Univer- sity of Wisconsin, Madison.

1000 P24. Comparison of sampling tech- niques for determining rumen ammonia nitrogen. J. E. Wohlt*, J. H. Clark, and F. S. Blaisdell, University of Illinois, Ur- bana.

1015 Break. 1030 P25. Effect of intraruminal infusion of

urea on serum cations and blood and rumen ammonia nitrogen. A. Davidovich* and E, E. Bartley, Kansas State Univer- sity, Manhattan.

1045 P26. Interrelation of rumen ammonia, rumen pH, blood ammonia, and blood urea in urea toxicity. E. E. Bartley*, A. Davidovich, C. W. Deyoe, G. W. Barr, R. M. Bechtle, and G. W. Griffel, Kansas State University, Manhattan.

1100 P27. Association of nonprotein nitro- gen with decreased meal size and eating

JOURNAL OF DAIRY SCIENCE VOL. 58, No . 4

intervals. H. R. Conrad* and J. W. Hibbs, Ohio Agricultural Research and Develop- ment Center, Wooster.

1115 P28. Effects of protein and nonprotein nitrogen on blood and rumen ammonia in dairy calves fed pelleted starters. D. D. Lee, Jr.* and G. C. McCoy, Southern Illi- nois University, Carbondale.

0900 to 1130 Section D: Dairy Cattle Improvement Open

Forum: Knowledge and educational needs for improving effectiveness of genetic eval- uations of yields of dairy cows and sires, Seaton Hall Room 63. B. T. McDaniel, Moderator. 1) Restricted to ideas, knowledge needed,

and their relative priorities for sire and cow evaluations for yield of milk and its components.

2) All interested in dairy cattle breeding re- search, teaching, and extension are invited to participate.

3) In the interest of effectiveness and ade- quate discussion time, those with ideas on needs in this area should prepare a concise statement that can be communi- cated in five minutes or less.

0930 to 1200 Section E: Physiology Symposium: Prostaglan-

dins in bovine reproduction, Student Union Forum Hall. H. W. Hawk, Chairman. 0930 Roles of prostaglandins in physiology

and pharmacology of animals. J. W. Lau- derdale, The Upjohn Company, Kalama- zoo, MI.

1000 Normal and experimentally altered concentrations and effects of prostaglan- dins in blood, tissues, and milk. W. Han- sel* and J. Hixon, Cornell University, Ithaca, NY.

1030 Reproductive physiological responses of cattle to exogenous prostaglandins. W. W. Thatcher* and J. R. Chenault, Univer- sity of Florida, Gainesville.

1100 Some applicaticms of prostaglandins in bovine reproduction. H. D. Hafs, Mich- igan State University, East Lansing.

1130 Discussion.

1330 to 1630 Section F: Milk Synthesis Symposium. See

Page 13: Program Seventieth Annual Meeting of the American Dairy Science Association Kansas State University Manhattan, Kansas June 22–25, 1975

ASSOCIATION AFFAIRS 637

Milk Synthesis Program.

1330 to 1700 Section G: Feeding and Management: Feed-

ing and behavior, Student Union Little Theatre. N. E. Smith, Chairman. 1330 P29. Complete feeds with 30 and 40

percent cottonseed hull for lactating dairy cows. H. H. Olson* and G. C. McCoy, Southern Illinois University, Carbondale.

1345 P30. Two systems of group feeding dairy cows. J. C. Wilk*, A. H. Rakes, D. G. Davenport, G. S. Parsons, and R. C. Wells, North Carolina State University, Raleigh.

1400 P31. Preservation of high moisture ground ear corn with organic acids. N. A. ~[orgensen*, H. J. Larsen, G. P. Barring- ton, R. F. Johannes, and R. P. Nieder- meier, University of Wisconsin, Madison.

1415 P32. Comparative nutritive value of wet and dried brewers grains for dairy cattle. R. M. Porter* and H. R. Conrad, Ohio Agricultural Research and Develop- ment Center, Wooster.

1430 Invitational Paper. Whey utilization in animal feeding - a summary and eval- uation. D. J. Schingoethe, South Dakota State University, Brookings.

1515 P33. Liquid whey as a feed supple- ment for lactating cows. M. J. Anderson*, R. C. Lamb, and C. H. Mickelsen, ARS, USDA, and Utah State University, Logan.

1530 P34. Fermented-ammoniated whey as a nitrogen supplement for lactating cows. I- T. Huber*, R. L. Boman, H. E. Hen- derson, and G. W. Kulasek, Michigan State University, East Lansing.

1545 Break. 1600 P35. Feeding behavior of growing

steers fed a complete mixed ration. L. E. Chase* and P. J. Wangsness, Pennsyl- vania State University, University Park.

1.615 P36. Effect of prepartum exercise on first calf heifers. B. O. Barker, R. C. Lamb*, and C. H. Mickelsen, Utah State University, and ARS, USDA, Logan.

1630 P37. Effects of early experience upon later maternal behavior and temperament in cows. J. L. Alb~ght*, C. M. Brown, D. L. Traylor, and J. C. Wilson, Purdue Uni- versity, West Lafayette, IN.

1645 P38(G). Training heifers to lead in

pairs. J. C. Wilson*, J. L. Mbright, J. L. Collins, G. Bugden, A. Eden, and R. I. Buesnel, Yanco Agricultural College, Hawkesbury Agricultural College, New South Wales, Australia, and Purdue Uni- versity, West Lafayette, IN.

1330 to 1615 Secti(m H: Feeding and Management: Miner-

a!s, mieroaautrients, and toxic elements, Stu- dent Union Room 212. J. K. Miller, Chair- m a n .

1330 Invitational Paper. Review of feed la- bels by the Food and Drug Administra- tion. W. D. Price, W. M. Knight*, N. E. Aldersor~, and D. B. Batson, Bureau of Veterinary Medicine, FDA, Rockville, MD.

1415 P39. Metabolism of selenium and sele- nittm-75 in dairy cows. R. Waite*, H. R. Conrad, and A. L. Moxon, Ohio Agricul- tural Research and Development Center, Wooster.

1430 P40. Intracellular distribtttion of zinc and zinc-65 in calves receiving a high but nontoxic amount of zinc. R. L. Kincaid*, W. J. Miller, R. P. Gentry, M. W. Neath- cry, and D. L. Hampton, University of Georgia, Athens.

1445 P41. Effect of calcium, phosphorus, and magnesium content of ration on per- formance and incidence of parturient paresis on dairy cows. D. R. Jacobson, R. W. Hemken*, R. H. Hatton, F. S. Bu'tton, and C. M. Enlow, University of Kentucky, Lexington.

1500 P42. Influence of diet calcium on milk production in Holstein cows. C. W. Kirn* and J. L. Evans, Cook College, Rutgers University, New Brunswick, NJ.

1516 P43. Energy and phosphorus influence on postpar~m estrus and metabolites. J. A. Carstairs*, D. A. Morrow, and R. S. Emery, Michigan State University, East Lansing.

1530 Invitational Paper. Metabolism of cad- mium, mercury, and lead in m~mals -- a review and summary. M. W. Neathery* and W. J. MilIer, University of Georgia, Athens.

1330 .to 1600 Section I: Health: Milking machines and mas-

JOURNAL OF DAIRY SCIENCE VOL. 58, No. 4

Page 14: Program Seventieth Annual Meeting of the American Dairy Science Association Kansas State University Manhattan, Kansas June 22–25, 1975

6 3 8 JOURNAL OF DAIRY SCIENCE

titis, Student Union Room 206. R. W. Mel- lenberger, Chairman.

•330 P44. Heritabflity of measures of inci- dence of clinical mastitis in Jersey cattle. R. H. Miller*, j. R. Owen, and E. D. Moore, Animal Physiology and Genetics Institute, ARS, USDA, Beltsville, MD, and Dairy Experiment Station, Lewis- burg, TN.

1345 P45. Computer system for herd mas- titis and health data. T. R. Batra*, B. J. Nomaecke, F. H. S. Newbou]d, and R. R. Hacker, University of Guelph, Guelph, Ontario.

1400 P46. Metabolic and physiologic re- sponse of dairy cattle to coliform mastitis. J. W. Fuquay*, A. B. Zook, W. E. Poe, W. H. Brown, and E. W. Custer, Missis- sippi State University, State College.

1415 P47. Milk iodine as influenced by iodo- phor teat dip. L. M. Conrad, III* and R. W. Hemken, University of Kentucky, Lex- ington.

1430 P48. Transfer of mastitis pathogens across the milking machine claw. P. D. Thompson* and W. D. Schultze, Genetics and Management Lab, ARS, USDA, Beltsville, MD.

1445 P49. Comparative performance of three types of milking machine vacuum controllers. F. F. Smith* and W. C. Fair- bank, University of California, Riverside.

1500 P50. Automatic application of teat dip by milking machine. P. D. Thompson* and W. E. Shainline, Genetics and Man- agement Lab, ARS, USDA, Beltsville, MD.

1515 P51. Variation in somatic cell counts in Dairy Herd Improvement samples. G. W. Bodoh*, W. ]. Battista, and L. H. Sehultz, University of Wisconsin, Madi- sort .

1530 P52. Milking practices in stanchion barns. R. D. Appleman* and G. R. Steuernagel, University of Minnesota, St. Paul.

1545 P53. Accuracy of an automated tech- nique for determining individual milking rates. E. B. Burnside, R. R. Hacker, M. A. Sharaby*, and J. B. Jaquith, University of Guelph, Guelph, Ontario, and Techni- cal Industries Inc., Fort Lauderdale, FL.

IOraI~NAL O1~ DAIRY SCIENCE VOL. 58, No. 4

1330 to 1645 Section J: Dairy Cattle Improvement: Perfor-

mance measurements, Kedzie Hall Room 106. G. E. Shook, Chairman. 1330 P54. Milk yield of Gelbvieh, Fleck-

vieh, and Deutsch Schwaxzbml~ten in An- gola. J. Lima Pereira, Faculty of Veteri- nary Science, Nova Lisboa, Angola.

1345 P55. Comparisons of inbred and line- cross Holsteins with outbreds for milk, fat, and pro,tein-lactose-mineral production. H. H. Voelker* and W. L. Tucker, South Dakota State University, Brookings.

1400 P56. Early lactation yield for evaluat- ing producing ability. C. G. Hickman, Animal Research Institute, Canada Agri- culture, Ottawa.

1415 1757. Sire identification as related to size of Holstein herds and proportion of grade cows. M. H. Ehlers*, B. F. Kelso, and R. W. Anderson, Washington State University, Pullman.

1430 P58. Estimating son's progeny test for type from pedigree members. W. W. Mc- Neill*, W. E. Vinson, and J. M. White, Virginia Polytechnic Institute and State University, Blacksburg.

1445 P59. Theoretical profits from dairy cows with different mature weights and rates of growth. T. Cole and J. M. Rakes*, University of Arkansas, Fayetteville.

1500 P60, Factors affect~g performance of Holsteins in Mexico. R. E. McDowell*, J. K. Camoens, L. D. VanVleck, E. Chris- tensen, and E. Cabello Frias, Cornell Uni- versity, Ithaca, NY; Assoeiati6n de Cria- dores Holstein-Friesian de M6xieo, Quere- taro; and Instituto Teenol6gieo y de Es- tudios Superiores De Monterrey, Monter- r e y .

1515 Break. 1530 P61. Performance of United States and

Canadian Holstein sires in herds of Mex- ico and Puerto Rico. R. E. MeDowell*, G. R. Wiggans, J. K. Camoens, L. D. Van- Vleck, and D. G. St. Louis, Cornell Uni- versity, Ithaca, N-Y.

1545 P62(G). Growth of Holstein steers from sires with widely varying predicted differences. W. D. Gflson*, T. M. Lud- wick, and E. R. Rader, Ohio Agricultural Research and Development Center, Co- lumbus, and Dairy Cattle Research Branch, Beltsville, MD.

Page 15: Program Seventieth Annual Meeting of the American Dairy Science Association Kansas State University Manhattan, Kansas June 22–25, 1975

ASSOCIATION AFFAIRS 639

1600 P63(G). A chromosomal aberration in Brown Swiss cattle. F. E. Eldridge and W. F. Blazak*, University of Nebraska, Lincoln.

1615 P64. Blood group gene frequencies and system relationships in Guernseys. G. F. W. Haenlein*, H. C. Hines, and J. P. Zikakis, University of Delaware, Newark, and Ohio State University, Columbus.

1630 P65. Gene frequencies of blood and milk polymorphisms in Holstein cattle. H. C. Hines*, G. F. W. Haenlein, and J. P. Zikakis, Ohio State University, Columbus, and University of Delaware, Newark.

1930 What Industry Expects of College Trained

Dairy Graduates, General Symposium (Joint: all Divisions.) Student Un'on, Fo- rum Hall. J. H. Martin, Moderator. See Dairy Foods Research Section Program.

TUESDAY, JUNE 24

0800 to 1100 Section A: Health Symposium: Binl~gieal

agents causing infections in dairy cattle, Stu- dent Union, Forum Hall. C. W. Arave, Chairman. 0800 Brucellosis: Current program status.

P. Becton, Director, National Brucellosis Eradication Program, Veterinary Services, USDA-APHIS, Washington, DC.

0830 Leptospirosis. L. Hanson, Head, De- partment of Pathology and Veterinary Hygiene, University of Illinois, Urbana.

0900 Anaplasmosis. B.R. MeCallon, Chief Staff Veterinariau, Viral and Parasitic Dis- eases, USDA-APHIS, Hyattsville, MD.

0930 New viruses. C. A. Mehus, Depart- ment of Veterinary Sciences, University of Nebraska, Lincoln.

1000 Infectious bovine rhinoqracheitis and bovine virus diarrhea. L. Newman, Proj- ect Leader, Veterinary Medicine Exten- sion, Michigan State University, East Lansing.

1030 Discussion.

and J. R. Owen, ARS, USDA, and Uni- versity of Tennessee, Lewisburg.

0830 P67. Ammonia versus urea-treated si- lages with varying urea in the grain. J. T. Huber, H. F. Bucholtz*, and R. L. Boman, Michigan State University, East Lansing.

0845 P68. Grain and stage from H. madis infected corn crops as dairy feeds. G. E. Hawkins, Auburn University, Auburn, AL.

0900 P69. Yields, feeding value, and com- position of oatlage versus oats-barley- wheat combination. H. H. Voelker*, G. L. Beardsley, J. A. Rook, and F. C. Lu- dens, South Dakota State University, Brookings.

0915 P70. Effect of conservation method on metabolism and prediction of intake of al- falfa. B. R. Baumgardt* and M. Clancy, Pennsylvania State University, University Park.

0930 1271. Effect of stage extract on volun- tary intake rumen fluid constituents and rumen motility. M. Clancy* and B. R. Banmgardt, Pennsylvania State Univer- sity, University Park.

0945 P72. Rumen motility before, during, and after eating. H. W. Colvin, Jr.*, and R. D. Digesti, University of California, Davis.

1000 F-/3. Growth and metabolism of sheep fed rations containing alfalfa hay or de- hydrated alfalfa. H. K. Goering* and I. L. Lindahl, Nutrition Institute, ARS, USDA, Beltsville, MD.

1015 P74. Yield, composition, fatty acid un- saturation, and stability of milk from cows fed protected sunflower seed supplements when grazing green oats. J. D. Radcliffe* and B. D. Bartsch, Northfield Research Centre, Department of Agriculture, Ade- laide, South Australia.

1030 P75. Management of permanent pas- tures for dairy heifers. E. M. Kesler*, L. W. Manosalvas, and J. M. Buckalew, Pennsylvania State University, University Park.

0815 to 1045 Section B: Feeding and Management: Forage

and silage utilization, Seaton Hall Room 63. G. S. Hess, Chairman. 0815 P66. Effect of corn silage as the only

forage on production and health of dairy cows. H. D. Baxter*, M. J. Montgomery,

0830 to 1045 Section C: Feeding and Management: Man-

agement and feeding, Student Union Room 212. R. S. Adams, Chairman. 0830 Invitational Paper. Relative lifespan

efficiencies of grain and forage utilization |OURNAL OF DAIRY SCIENCE VOL. 58, NO. 4

Page 16: Program Seventieth Annual Meeting of the American Dairy Science Association Kansas State University Manhattan, Kansas June 22–25, 1975

6 4 0 JOURNAL OF DAIRY SCIENCE

by lactating cows at several production levels. A. F. Kertz* and J. P. Everett, Jr., Ralston Purina Company, St. Louis, Me.

0915 P76. Variation in part and whole lacta- tion production, feed intake, body weight, and feed efficiency of Holstein cows. R. A. Sutton, K. E. Olson*, W. J. Tyler, and N. A. Jorgensen, University of Wisconsin, Madison.

0930 P77. Relationship of calving interval to milk production. R. E. Ricketts*, H. A. Garverick, and G. F. Ka-ause, Univer- sity of Missouri, Columbia.

0945 P78. Reproductive performance in dairy cows inseminated at first esffus after 40 or 60 days postpartum. D. S. Harri- son*, J. H. Britt, and R. W. Mellenberger, Michigan State University, East Lansing.

1000 P79. Growth rate effects on size of pel- vic openings of Holstein heifers. R. W. Gardner*, L. W. Smith, D. Clark, and R. A. Gardner, Brigham Young University, Provo, UT

1015 P80. Calf mortality in Dairy Herd Im- provement herds. E. W. Wisniewski, C. W. Arave*, and R. C. Lamb, Utah State University, and ARS, USDA, Logan.

1030 P81. Feeding value of various forages for dairy heifers. G. D. Marx, University of Minnesota, Crookston.

0830 to 1100 Section D: Dairy Cattle Improvement Open

Forum: Knowledge and educational needs to improve effectiveness of dairy cattle breeding on subjects other than yield, Stu- dent Union Little Theatre. It. W. Everett, Moderator. 1) Restricted to ideas and knowledge need-

ed on traits other than yield for sire and cow evaluation, breeding systems, and performance testing.

2) All interested in dairy cattle breeding re- search, teaching, and extension are invited to participate.

3) In the interest of effectiveness and ade- quate discussion time, those with ideas on needs in this area should prepare a concise statement that can be communi- cated in five minutes or less.

0830 to 1100 Section E: Milk Synthesis, see Milk Synthesis

Program. JOURNAL OF DAIRY SCIENCE VOL. 58, NO. 4

1330 to 1545 Section F: Feeding and Management: Digesti-

bility and feed utilization, Student Union Forum Hall. P. E. Stake, Chairman. 1330 P82. Effect of increasing ration fiber

with soybean mill run on digestibility and lactation. C. A. Macgregor, F. G. Owen*, and L. D. McGill, University of Nebraska, Lincoln.

1345 P83. Relative digestibilities of two types of sorghums fed as silage. R. A. Rupp, G. T. Lane, and R. E. Leighton*, Texas A and M University, College Sta- tion.

1400 P84. Digestibility of whole sorghum grain stored as silage or high moisture grain. G. T. Lane*, R. A. Rupp, R. E. Leighton, R. E. Lichtcnwalner, R. D. Sul- lins, and L. W. Rooney, Texas A and M University, College Station.

1415 P85. Digestibility relationships be- tween c~mplete feeds with corn silage and cottonseed hulls. A. L. Sargent, G. C. McCoy*, and H. H. Olson, Southern Illinois University, Carbondale.

1430 P86. Effect of coffee grounds on di- gestibility of a cattle ration. T. W. Camp- bell*, R. M. Bechtle, E. E. Bartley, and A. D. Dayton, Kansas State University, Manhattan.

1445 P87. Urine and feces separator for di- gestibility studies and balance trials with lactating dairy cows. R. Bouchard, Re- search Station, Agriculture Canada, Len- noxville, Quebec.

1550 P88. Simple method for digestive marker preparation. A. Y. Robles*, F. A. Martz, and W. P. Warren, University of Missouri, Columbia.

1515 P89. Addition of long barley straw to dairy rations containing alfalfa hay cubes. W. H. Brown, F. M. Whiting*, and J. W. Stull, University of Arizona, Tucson.

1530 P90. Utilization of loose and pelleted cottonseed hulls by lactating dairy cows. W. H. Brown, R. J. Turner, B. S. Daboll, F. M. Whiting, and J. D. Schuh*, Univer- sity of Arizona, Tucson.

1330 to 1715 Section G: Health: Polybrominated biphenyl

and other health related problems, Student Union Room 212. G. D. Marx, Chairman.

Page 17: Program Seventieth Annual Meeting of the American Dairy Science Association Kansas State University Manhattan, Kansas June 22–25, 1975

ASSOCIATION" AFFAIRS 6 4 1

1330 P91. Field observations of Michigan dairy cattle contaminated with polybromi- nated biphenyl. L. 1% Prewitt*, R. M. Cook, and G. F. Fries, Michigan State University, East Laming, and USDA, Beltsville, MD.

1345 P92. Distribution o,f polybrominated biphenyl residues in tissues of dairy cattle. G. F. Fries*, G. S. Marrow, C. N. Deter- ing, L. R. Prewitt, and R. M. Cook, AEQI, ARS, USDA, Beltsville, MD, and Michigan State University, East Lansing.

1400 P93. Distribution and clearance of polybrominated biphenyls by cows. L. B. Willett* and H. A. Irving, Ohio Agricul- ~ral Research and Development Center, Wooster.

1415 P94. Placental transfer of polybromi- hated biphenyl by Holstein cows. C. N. Detering, L. R. Prewitt, 1% M. Cook*, and G. F. Fries, Michigan State University, East Lansing, and USDA, Beltsville, MD.

1430 P95. Relationships between polybromi- hated biphenyl in blood, milk, and body fat from Holstein cows. C. N. Detering, L. R. Prewitt*, R. M. Cook, and G. F. Fries, Michigan State University, East Lansing, and USDA, Beltsville, MD.

1445 P96. Excretory behavior o,f polychlori- nated biphenyls in lactating cows fed nor- mal and thyroprotein containing rations. L. B. Willett, Ohio Agricultural Research and Development Center, Wooster.

1500 P97. Translocation and natural elimi- nation of a commercial polychlorinated biphenyl in the dairy herd. James V. Chambers* and Carlton E. Weaver, Pur- due University, West Lafayette, IN, and Ohio Department of Agriculture.

1515 P98. Incidence of gastrointestinal para- sites in New Hampshire dairy cattle. J. D. Stoddard* and R. G. Strout, University of New Hampshire, Durham.

1530 P99. Factors toxic to mice in rumen fluid .from hay or grain fed cattle. T. G. Nagaraja*, L. R. Fina, H. D. Anthony, and E. E. Bartley, Kansas State Univer- sity, Manhattan.

1545 Break. 1600 P100. Abatement of odors from simu-

lated liquid manure pits through chemical treatment. C. C. Stallings* and L. R. Prewitt, Michigan State University, East Lansing.

1615 P101. Survival of Salmonella typhimu- rium in dairy cow waste. T. A. MeCas- key* and M. A. Jaleel, Auburn University, Auburn, AL.

1630 P102. Environment affecting passive immunity in dairy calves. G. H. Stott*, F. Wiersma, B. E. Menefee, and F. R. Radwanski, University of Arizona, Tuc- son.

1645 P103. Liquid supplements containing poloxalene for prevention of legume bloat. A. Davidovich* and E. E. Bartley, Kansas State University, Manhattan.

1700 P104. Mode of action o,f a quaternary ammonium compound in preventing grain bloat. T. G. Nagaraja*, E. E. Bartley, and L. R. Fina, Kansas State University, Man- hattan.

1330 to 1715 Section H: Physiology H: Reproduction, Sea-

ton Hall Room 63. E. W. Swanson, Chair- m a n .

1330 P105. In vitro aging of frozen bull se- men. L. W. Roettger*, G. W. Salisbury, A. ~. Lee, L. J. Boyd, and W. Ingalls, Uni- versity of Illinois, Urbana, and Michigan State University, East Lansing.

1345 P106. An improved spermatozoa fixa- tion technique for ultrastructure studies. N. S. Shutt* and C. P. Merilan, Univer- sity of Missouri, Columbia.

1400 P107. Effect of pH on bovine semen survival in various diluters. J. D. Sikes* and C. P. Merilan, University of Missouri, Columbia.

1415 P108. Vapor composition during bovine semen lyophilization. C. P. Meri- lan* and J. D. Sikes, University of Mis- souri, Columbia.

1430 P109. Seminfferous epithelial cycle in the adult albino rat. S. N. Maurya and C. N. Graves*, University of Illinois, Ur- bana.

1445 Pll0. Serum testosterone following multiple ejaculations. P. S. Weathersbee* and J. R. Lodge, University of Illinois, Urbana.

1500 P l l l . Blood testosterone following oxytocin injection. P. S. Weathersbee* and J. R. Lodge, University of Illinois, Urbana.

1515 Pl12. Changes in electrical resistance IOURNAL OF DAIRY SCIENCE VOL. 58, NO. 4

Page 18: Program Seventieth Annual Meeting of the American Dairy Science Association Kansas State University Manhattan, Kansas June 22–25, 1975

6 4 2 JOURNAL OF DAIRY SCIENCE

of bovine cervical-vaginal mucus dm'ing estrous cycle. S. Al-Obaidi* and L. L. Larson, University of Nebraska, Lincoln.

1530 Pl13. Insemination at a predetermined time after prostaglandin Fz~, estradiol, and luteinizing hormone releasing hor- mone treatments. D. M. Tobey* and W. Hansel, Coa'nell University, Ithaca, NY.

1545 Pl14. Relation of estrus to tempera- tures of ear canal, rectum, and milk in dairy cattle. M. Lira*, R. G. Rodewald, and S. L. Spahr, University of Illinois, Ur- bana.

1600 Pl15. Pregnancy diagnosis via proges- terone of milk. J. A. Pennington*, S. L. Spahr, J. R. Lodge, and R. J. Collier, Uni- versity of Illinois, Urbana.

1615 Pl16. Prepartum serum hormone con- centrations related to dystoeia in Holstein heifers. T. O'Brien and G. H. Stott*, Uni- versity of Arizona, Tucson.

1630 Pl17. Effect of parity on dry matter intake at parturition in dairy cattle. J. P. Marquardt*, R. L. Horst, and N. A. Jor- gensen, University of Wisconsin, Madi- son.

1645 Pl18. Influence of human ehorionic gonadotropin on calving rates in lactating dairy cows. L. L. Larson, University of Nebraska, Lincoln.

1700 Pl19. Effect of nitrate in drinking wa- ter on reproductive and productive effi- ciency of dairy cattle. L. W. Kahler, N. A. Jorgensen*, L. D. Satter, W. J. Tyler, J. W. Crowley, and M. F. Finner, Univer- sity of Wisconsin, Madison.

1330 to 1645 Section I: Dairy Cattle Improvement: Genetic

parameters, Student Union Little Theatre B. T. MeDaniel, Chairman. 1330 P120. Changes in sire summaries re-

sulting from considering herdmates' sires and pedigree grouping. H. D. Norman*, R. L. Powell, and F. N. Dickinson, Ani- mal Physiology and Genetics Institute, ARS, USDA, Beltsvitle, MD.

1345 P121. Evaluation of new Dairy Herd Improvement age-season adjustment fac- tors. L. P. Johnson and K. E. Olson*, Uni- versity of Wisconsin, Madison.

1400 P122. Accotmting for genetic differ- JOURNAL OF DAIRY SCIENCE VOL. 58, NO. 4

ences between herds in estimates of breeding value. P. L. Spike* and A. E. Freeman, Iowa State University, Ames.

1415 P123. Bias and precision of several sampling schemes for estimating lactation milk yield. G. E. Shook*, L. P. Johnson, and F. N. Dickinson, University of Wis- consin, Madison, and Animal Physiology and Genetics Institute, USDA, Beltsville, MD.

1430 P124. Relationship between pedigree index and daughter yield in the Sire Sum- mary. R. L. Powell*, H. D. Norman, and F. N. Dickinson, Animal Physiology and Genetics Institute, USDA, ARS, Beltsville, MD.

1445 P125. Combining progeny and pedi- gree to improve genetic evaluations of dairy bulls. B. T. McDaniel* and B. R. Bell, North Carolina State University, Raleigh.

1500 Break.

1515 P126. Problems in estimating genetic parameters in dairy, cattle. I. Discon- nectedness among subclasses. L. R. Scha- effer* and I. L. Mao, Universty of Guelph, Guelph, Ontario, and Michigan State University, East Lansing.

1530 P127. Problems in estimating genetic parameters in dairy cattle. II. Adjusting production records for herd differences. I. L. Mao* and L. R. Schaeffer, Michigan State University, East Lansing, and Uni- versity of Guelph, Guelph, Ontario.

1545 P128. Problems in estimating genetic parameters in dairy cattle. III. Correla- tions involving categorized data. I. L. Mao, Michigan State University, East Lansing.

1600 PI29. Computational methods for in- corporating relationships in sire evalua- tion. C. R. Henderson* and L. R. Schaef- fer, Cornell University, Ithaca, NY.

1615 P130. Results from use of the relation- ship matrix in sire evaluation. R. W. Everett*, W. D. Slanger, L. R. Schaeffer, and C. R. Henderson, Cornell University, Ithaca, NY.

1630 P131. Effect of errors in variances and covariances on prediction error variance. W. D. Slanger* and C. R. Henderson, Cornell University, Ithaca, NY.

Page 19: Program Seventieth Annual Meeting of the American Dairy Science Association Kansas State University Manhattan, Kansas June 22–25, 1975

ASSOCIATION AFFAIRS 643

WEDNESDAY, JUNE 25

0800 to 1045 Section A: Extension and Education Sympo-

sium: Dgirying m a competitive econ, omy, Student Union Forum Hall. E. C. Meyer, Chairman. 0800 Can the United States compete with

dairy exporting nations? B. M. Buxton* and G. E. Frick, Commodity Economics Division, ERS-USDA, stationed at the University of Minnesota, St. Paul, and University of New Hampshire, Durham.

0850 Maximizing income over feed costs. N. E. Smith, University of California, Davis.

0935 Putting the finger on costs and returns in the production of milk. C. H. Burton, Oklahoma State University, Stillwater.

1020 Discussant. E. C. Meyer, Hoard's Dairyman, Fo.rt Atkinson, WI.

held in confinement. J. T. Blake*, J. D. Olsen, R. C. Lamb, C. H. Miekelsen, and B. O. Barker, Utah State University, and ARS, USDA, Logan.

1000 P138. Plasma characteristics and adrenal response of heifers to thermal stress. F. C. Gwazdauskas*, W. W. Thatcher, M. J. Paape, C, A. Kiddy, and C. J. Wilcox, University of Florida, Gainesville, and USDA, Beltsvflle, MD.

1015 P139. Physiological response of Hol- stein cows to patterns of diurnally-im- posed heat stress. I. M. Scott*, H. D. Johnson, and L. Hahn, University of Mis- souri, Columbia.

1030 P140. Plasma corticoid and blood leu- cocyte relationships in dairy cattle sub- jected to nutritional stress. E. W. Wis- niewski*, C. W. Axave, R. J. Svejda, and R. C, Lamb, Utah State University, and ARS, USDA, Logan.

0815 to 1045 Section B: Physiology III: General, Student

Union Roo~n 212. M. H. Ehlers, Chairman. 0815 P132. A standardized exercise test for

dairy cows. L Maximal heart rate re- sponse. J. D. Olsen*, J. T. Blake, and R. C. Lamb, ARS, USDA, and Utah State University, Logan.

0830 P133. Whey proteins in secretion from mammary glands of young heifers. K. L. Smith*, L. C. Ferguson, and F. L. Schan- bacher, Ohio Agricultural Research and Development Center, Wooster.

0845 P134. Effect of protein source and sup- plemental iodine on thyroxine secretion in calves. J. K. Miller* and W. A. Lyke, Comparative Animal Research Labora- tory, Oak Ridge, TN.

0900 P135. Effects of nicotinic acid on blood glucose, plasma insulin, and re- moval of intravenously administered glu- cose in goats. J. H. Thornton*, M. Iwen, and L. H. Schultz, University of Wiscon- sin, Madison.

0915 P136. Insulin response to feeding in growing steers. L. E. Chase* and P. J. Wangsness, Pennsylvania State Univer- sity, University Park.

0930 Break. 0945 P137. Body condition of dairy cattle

0815 to 1045 Section C: Feeding and Management: Protein

and nitrogen utilization, Student Union Lit- tle Theatre. L. D. Muller, Chairman. 0815 P141. Effects of dietary nitrogen

sources on productivity of high producing cows. R. W. Gardner*, R. A. Zinn, and R. A. Gardner, Brigham Young Univer- sity, Prove, UT.

0830 P142. Starea, soybean meal, and urea as nitrogen sources for lactating cows. D. A. Stiles*, D. D. Lee, and E. E. BaRley, Southern Illinois University, Carbondale, and Kansas State University, Manhattan.

0845 P143. Utilization of soybean meal, urea, and Starea by ruminants. D. D. Lee*, D. A. Sties, E. E. Bartley, G. C. McCoy, and J. J. Meno, Southern Illinois University, Carbondale, and Kansas State University, Manhattan.

0900 P144. Dietary protein and urea on se- rum amino acids in lactating cows. C. E. Polan* and C. N. Miller, Virginia Poly- technic Institute and State University, Blacksburg.

0915 P145. Determination of limiting amino acids for lactating dairy cows. C. G. Schwab, A. B. Clay, and L. D. Satter*, University of Wisconsin, Madison.

0930 P146. Effect of protein source on plas- ma free amino acid concentration in rumi-

]OURNAL OF DAIRY SCIENCE VOL. 58, NO. 4

Page 20: Program Seventieth Annual Meeting of the American Dairy Science Association Kansas State University Manhattan, Kansas June 22–25, 1975

6 4 4 JOURNAL OF DAIRY SCIENCE

nants. H. H. LiPun and L. D. Satter*, University of Wisconsin, Madison.

0945 Break. 1O00 P147. Protein and methionine hydroxy

analog for lactating cows. P. T. Chandler* and C. A. Brown, Virginia Polytechnic Institute and State University, Blaeksburg.

1015 P148. Two-year field study of methio- nine analog supplementation. M, 17. Itut- jeus* and K. M. Nold, University of Min- nesota, St. Paul, and Midland Coopera- tives, Inc., Minneapolis.

1030 P149. Rate of catabolism of sulfur amino acids by rumen microorganisms. D. L. Merrieks* and R. L. Salsbury, Uni- versity of Delaware, Newark,

1330 to 1630 Section D: Feeding and Management Sympo-

sium: Nutrient requirements of dairy cattle, Student Union Forum Hall. N. L. Jacobsen, Moderator. 1330 Objectives, clientele, and procedures

in developing and revising National Re- search Council bulletin on nutrient re- quirements of dairy cattle. L. H. Schultz, University of Wisconsin, Madison.

1350 Field uses and applications of National Research Council publication on nutrient requirements of dairy cattle in formulat- ing rations and feeding dairy cattle. D. L. Bath, University of California, Davis.

1410 Discussant. J. W. Crowley, University of Wisconsin, Madison.

1435 Energy requirements of dairy cattle. P. W. Moe, Nutrition Institute, BABC- USDA, Beltsville, MD.

1505 Protein requirements and nonprotein nitrogen utilization for dairy cattle. E. W. Swanson, University of Tennessee, Knox- ville.

1535 Mineral requirements of dairy cattle. W. J. Miller, University of Georgia, Athens.

1555 Discussant. J. T. Reid, Cornell Univer- sity, Ithaca, NY.

1330 to 1630 Section E: Extension and Education: Produc-

tion economics, Student Union Little Thea- tre. H. R. Barr, Chairman. 1330 Invitational Paper. Forage testing and

feeding programs. C. E. Coppock, Cornell University, Ithaca, NY.

1415 P150. Economic benefits of forage test- ing and ways to increase participation. G. S. Hess* and R. W. Hemken, University of Kentucky, Lexington.

1430 P151. Potential income from increased reproductive efficiency. J. A. Lineweaver, Virginia Polytechnic Institute and State University, Blacksburg.

1445 P152. Simplified profit function for dairy cattle. F. R. Allaire* and G. S. Gill, Ohio State University, Columbus, and Ohio Agricultural Research Development Center, Wooster.

1500 P153. A cost benefit analysis for a monitoring system to detect esh'us in dairy cows. C. A. Morris*, J. S. Hurnik, G. ]. King, and H. A. Robertson, Univer- sity of Guelph, Guelph, and Animal Re- search Institute, Ottawa, Ontario.

1515 P154. New approach to 4-H dairy lit- erature prepared as joint project by four midwest states. D. P. Dickson* and M. F. Hutjens, University of Wisconsin, Madison, and University of Minnesota, St. Paul.

1530 P155. Milk and fat production from alternate monthly and bimonthly PM-AM testing. C. G. M. Edgerly, North Daketa State University, Fargo.

1545 Invitational Paper. Future needs of the dairy industry for dairy recordkeeping program. N. D. Bayley, Department of Agriculture, Washington, DC.

]OURNAL OF DAIRY SCIENCE VOL. 58, NO. 4[


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