FIFTY-FOURTH ANNUAL MEETING OF THE AMERICAN DAIRY SCIENCEASSOCIATION UNIVERSITY OF ILLINOIS URBANA JUNE 15-17, 1959 PROGRAM COMMITTEE F. J. RAU~;L, Indiana, Chairman N . L . JACOBSOX, Iowa D. V. JOSEPHSON, Pennsylvania, Ex Officio L.A. JOHNSON-, Michigan B. H. WEBB, New York G. ~V. SALISBURY, Illinois GENERAL PROGRAM Friday, June 12 Meeting of Executive Board Committees, Allerton House, Monticello Saturday, June 13 9:00 x.~[. Meeting of Executive Board, Allerton House, Monticello Sunday, June 14 9:00 A.M.-12:00 3~. Meeting of Executive Board, Allerton House, Monticello 9:00 A.~L--10:00 P. M. Registration, Garner House Lounge, Gregory Drive Residence Halls 8:00e.~. Informal Get-Together, Gregory Drive Residence Halls Monday, June 15 5:00-6:00 P.M. Program Sponsored by Association's Education Committee Gregory Hall, Room 112 5:30 P.~. Past Presidents' Dinner, Garner House Private Dining Room Gregory Drive Residence Halls 731
Transcript
FIFTY-FOURTH A N N U A L MEETING OF THE
AMERICAN DAIRY SCIENCE ASSOCIATION UNIVERSITY OF ILLINOIS
URBANA
JUNE 15-17, 1959
PROGRAM COMMITTEE F. J. RAU~;L, Indiana, Chairman N . L . JACOBSOX, Iowa D. V. JOSEPHSON, Pennsylvania, Ex Officio L . A . JOHNSON-, Michigan B. H. WEBB, New York G. ~V. SALISBURY, Illinois
GENERAL PROGRAM
Friday, June 12
Meeting of Executive Board Committees, Allerton House, Monticello
Saturday, June 13
9:00 x.~[. Meeting of Executive Board, Allerton House, Monticello
Sunday, June 14 9:00 A.M.-12:00 3~. Meeting of Executive Board, Allerton House, Monticello
9:00 A.~L--10:00 P. M. Registration, Garner House Lounge, Gregory Drive Residence Halls
University Auditorium 9:30 P.:~L--Teenage Mixer and Variety Show,
Illini Union Commons 9:30 A..~L
to 11:30 *.~. -Campus Tour 1:00 P.X.
to 4:30 p.~L--Swimming and Recreation 7:30 P.JL--Variety Program (children 12 years
to 10:00 P..~L and older), Lower Gym, English Bldg. 9:30 A.JL--Visit to Natural History Museum
to 11:30 ,.~L
MANUFACTURING SECTION
Monday, June 15 8:30 .~,.~[.-11:15 A.~L SECTIONS A AND B. Milk Proteins Symposium
STUART PATTON~ C h a i r m a n Gregory Hall, Room 112
Invited Papers: The effect of temperature on protein-protein interactions in milk and milk protein systems. QUEXTIX \LaX WIN'KLE, Ohio State University. The structure of kappa-casein and its interaction with alpha-casein. D .F . WauGn, Massachusetts Institute of Technology.
M1. Preparation of calcium-sensitive alpha-casein. C. A. Z~TTL~, Eastern Utilization Research and Development Division, USDA, Philadelphia.
OUR ASSOCIATION 739
M2. The effect of homogenization upon the fa t -protein interaction in milk. K. K. Fox~ JEAN E. CAHA~ ~-IRGINIA H. HOLSINGER~ AND M, J. PALLANSCH 9 Eastern Utilization Research and Development Division, USDA, Wash- ington, D. C.
M3. Characteristics of the adsorbed proteins on the homogenized milk fat- globule. R. H. JACKSON AND J, R. BRUNNER~ Michigan Agricul tural Ex- per iment Station.
M4. Changes in nfilk proteins accompanying the growth of psychrophilic bac- teria as determined by pape r electrophoresis. J. D. SKEAN AND W. W. OVERCAST, Tennessee Agricul tural Exper iment Station.
M5. Protein complex format ion in evaporated milk. J . C. TRAUT.~IAN *ND A. M. SWANSON, Universi ty of Wisconsin.
M6. Characterization of milk sermn protein component 5. ROBERT JENNESS, Universi ty of Minnesota.
11:00 A.~,I.--12:00 ~Y. MANUFACTURING SECTION BUSINESS ~[EETING
B. H. WEBB 9 Chai rman G r e g o ~ Hall, Room 112
1:30-3:30 P.~L SECTION A. Market Milk
BURDET HEINEMANN, Chairman Gregory Hall, Room 112
M7. The effect of steam injection and vacuum treatinent on the flavor of milk. W. F. SmPE, Cornell University.
M8. The effect of steam injection and vacumn t rea tment on the bacterial qual- i ty of milk stored for 7 and 14 days at 40 ° F. and 50 ° F. G. V. GUDNASON, W. •. SHIPE, AND R. F. HOLLA.-X-D, Cornell Universi ty.
M9. The removal of feed flavors from nfilk by vacuum-pasteurizat ion. J. D. WYNN AND J. l:{. BRVNNER, Michigan Agricul tura l Exper iment Station.
The consumer acceptance of milk beverages as affected by fa t and solids- not-fat content. J. W. STULL AND J. S. HILL_~IAN, Universi ty of Arizona.
Effect of the development of oxidized flavor on the polyunsatura ted fa t ty acids of milk lipids. L. M. SMITH AND W. I~. DUNKLEY, Universi ty of California.
The role of a chelating compound in the inhibition of oxidized flavor. R. L. Klxo AND "~V. L. DUNKLEY, I 'n ivers i ty of California.
Dihydroquercet in as an antioxidant for milk. G. A. RICHARDSON" AND D. R. EmCKSON, Oregon State College.
M10.
M l l .
M12.
M13.
740 JOURNAL OF DAIRY SCIENCE
M14. Removal of Sr s9 and Ca ~ from milk by means of ion exchange resins. D. G. EASTERLY, B. J. DEMOTT, AND R. G. CRAGLE, University of Tennessee and UT-AEC Agricul tural Research Laboratory, Oak Ridge.
1:30-3:30 P.,~. SECTION B. Dairy Chemistry, Butter
STUART PATTON, Chairnmn Gregory Hall, Room 100
M15. A part ial differentiation of the esterases of milk. T. L. FORSTER, M. W. MONTGO)~ERY, AND H. A. BENDIXEN, Washington Agricultural Experi- merit Station.
M16. Some observations on lipase activity. B. L. HERRINCTON AN-P E. S. C~UTH- RIE, Cornell University.
M17. Effect of penicillin and aureomycin upon the phosphatase enzyme system of milk. C. V. MORR, Ohio State University.
M]8. Differences in the viscosity and voluminosity of centrifuge sediments from milk due to suspending medium and to se'liment fraction. C. H. WHITNAH AND R. BASSETTE, Kansas State College.
M19. A quantitative test for earrageenin ester sulphate in milk. P. M. T. HAN ~- SEN AND R. McL. WItITNEY, University of Illinois.
M20. Chromatographic determination of sugars in ice cream. T. C. CHOU AND JOSEPH TOBIAS, University of Illinois.
M21. Specifications for the spreadabili ty of butter. R. R. RIEL, Dairy Tech- nology Research Institute, Ottawa. Canada.
M22. The hardness and spreadability of but ter as affected by edible additives. J. J. BETSCHER, T. KRISTOFFERSEN, AND [. A. GOUI,D, Ohio Agricultural Exper iment Station and Ohio State University.
5:00-6:00 P.~L PROGRAm[ SPONSORED BY ASSOCIATION'S EDVCATION COM3IITTEE
J. T. LAZAR, JR., Chairman Gregory Hall, Room 112
Tuesday, June 16 8:30-10:00 A.~. SECTION A. Tests for Milk Constituents
B. H. ~VEBB, Chairman Gregory Hall, Room 112
OUR ASSOCIATION 741
M23.
M24.
A solids-not-fat test for milk using density plastic beads as hydrometers. N. S. GOADING, State College of Washington.
Test for evaluating the milk plasma phase of whole milk. W. A. KRIENKE~ Florida Agricultural Experiment Station.
M25. An improved procedure for the determination of milk proteins by dye binding. U. S. ASFIWORTH, State College of Washington.
A direct titrimetric method employing a silver electrode for estimating the chloride content of cow's milk. D. H. KLEYN AND B. L. HERRINGTON, Cornell University.
M27. Photometric determination of fat in milk. G. H. HAUGAARD AND J. D. PETTINATI~ National Dairy Products Corporation, Oakdale, New York.
M28. Photometric fat test for ice cream mix. J. D. PETTINATI AND G. H. HAL'- GAARD, National Dairy Products Corporation, Oakdale. New York.
8:30-10:00 A.~r. SECTION B. Cheese Chemistry
STUART PATTON~ Chairman Gregory Hall, Room 100
M29. Oxidation-reduction measurements on Cheddar cheese. T. KRISTOFFERSEN AND I. 2~. GOULD, Ohio State University.
M30. Crystalline rennin in Cheddar cheese manufacture. P. M. LINKLATER AND C. A. ERNSTRO~£, University of Wisconsin.
M31. Coagulation of milk for cheese-making by ester hydrolysis. D. D. DEANE AND E. G. HA~fMOND, Iowa State College.
M32. Formation of carbonyls during ripening of Limburger cheese. S. L. TUCKEY~ JOHN COLMEY, AND YASUO .~kZUMA, University of Illinois.
M33. Ultrasonic energy attenuation in Cheddar cheese and tile effect of ultra- sound on the ripening process. A. FEDERER AND ~V. C. WINDER, University of Wisconsin.
M26.
]0:15 A.M.--]2:15 P.SI. GENERAL BUSYNESS SESSION OF ASSOCIATION
K. L. TURK, Chairman University Auditorium
1:45-4:30 e.~. SECTION" A. Milk Fat
STUART PATTON, Chairman Gregory Hall, Room 112
M34. Correlation between the iodine and thiocyanogen nmnbers of milk fat. V. N. KRUKOVSKY, R. A. PLACE, S. R. TOOLE, AND R. W. WATSON, JR.~ Cornell University.
742 JOURNAL OF DAIRY SCIENCE
M35.
M36.
M37.
M38.
M39.
M40.
M41.
M42.
M43.
M44.
The monoglyceride content of butter. R. G. JENSEN AND A. H. DUTHIE, Storrs Agricultural Experiment Station. Connecticut.
Molecular distillation characteristics of butterfat, other food fats and mixtures of butterfat, and other food fats. E. H. SANDER AND E. W. BIND, Iowa State College. Colorimetric determination of fat in milk and the saponification number of a fat by the hydroxamic acid reaction. IRA KATZ, MARK KEENEY, AND RICHARD BASSETTE, University of Maryland. Free butyric, caproic, and caprylic acid production during lipolysis. W. J. HARPER AND I. A. GOULD, Ohio Agricultural Experiment Station and Ohio State University. Isolation and characterization of phospholipids from dried whole milk and dried buttermilk. S.M. HusAIxI, H. W. SPRECHER, AND A. M. SWAN- SON, University of Wisconsin. A new and simple method of estimating the phosphatide content of milk lipids. G. R. GREENBANK AND M. J. PALLANSCH, Eastern Utilization Re- search and Development Division, USDA, Washington, D. C. The migration of the phosphatides in the processing of dairy products. G. R. GREENBANK AND M. Z. PALLANSCH~ Eastern Utilization Research and Development Division, USDA, Washington, D. C.
The lipids of the fat-globule membrane of bovine milk. M. P. THO~PSON, J. R. BRUNNER, AND C. M. STINE, Michigan Agricultural Experiment Station. An improved centrifugal test for fat stability applied to evaporated milk-- estimation of homogenizer performance and fat stability in storage. S. J. PEARCE, Carnation Company, Van Nuys, California.
The development of a high efficiency homogenizer valve. C. C. Loo, Car- nation Company, Van Nuys, California.
1:45-4
M45.
M46.
M47.
:30 P.M. SECTION B. Dairy Bacteriology
BURDET HEINEMANN, Chairman Gregory Hall, Room 100
Relative cleanability of various stainless steel finishes. O. W. KAUF-~IAN~ ~, T. I. HEDRICK, I. J. PFLUG~ C. G. PHEIL, AND R. A. KEPPELER, Michigan State University.
Extent of psychrophilic bacterial growth in manufacturing grade bulk- tank milk. W. S. LAGRANGE A.N'D F. E. NELSON', Iowa Agricultural Ex- oeriment Station. Lipolytic yeasts in ice cream from dairy farms. E. R. GARRISOX, Arkansas Agricultural Experiment Station.
OUR ASSOCIATION 743
M48.
M49.
M50.
A temperature for the pasteurization of milk with no intended holding time. L. D. WITTER AND JOSEPH TOBLaS, University of Illinois.
A direct microscopic method for detecting antibiotic activity in milk. B. J. LISKA, Florida Agricultural Experiment Station.
Interaction among pure strains of lactic streptococci isolated from mul- tiple strain cheese starters. V. W. GREENE, Southwestern Louisiana Institute.
M51. A study of potential causes of culture faihlres in cheese factories. W . K . MOSELm ~ AND R. L. WINSLOW, W. K. Moseley Laboratory, Indianapolis, Indiaua.
M52. A simple method for eliminating and controlling bacteriophage in lactic starters. R. E. HARGROVE, Eastern Utilization Research and Development Division, USDA, Washington, D. C.
M53. Propagation of lactic starter cultures in sterile canned skimmilk. H . K . ZIMMERhIAN AND J. B. M.axx, Carnation Company, Van Nuys, California.
M54. Further studies of the continuous propagation of lactic cultures. B. J. LISK_% E. L. FOUTS, AND H. H. \VILKOWSKE, University of Florida.
M55. A storage study of a lyophilized and a frozen lactic culture. G. H. RICH- ARDSON AND n . E. CALBERT, University of Wisconsin.
SECTION A. Cheese BURDET HEINEMANN, Chairman Gregory Hall, Room 112
New type pasteurizing, deodorizing, and concentrating equipment for use in cheese manufacture. F. P. HANRAHAN, H. E. WALTER, AND A. M. SAD- LER, Eastern Utilization Research and Development Division, USDA, Washington, D. C.
Effect of modification of composition on the firmness of pasteurized proc- ess cheese spread. N. F. OLSON AND W. V. PRICE, University of Wisconsin.
Studies dealing with the manufacture and ripening of cheese made from reconstituted milk. I. I. PETERS, Texas Agricultural Experiment Station.
An examination of commercial low-heat nonfat milk powder supplied for manufacture of cottage cheese. H. E. R~aNDOLPtt AND T. KRISTOFFERSEN, Ohio Agricultural Experiment Station.
744 JOURNAL OF DAIRY SCIENCE
M60.
M61.
M62.
M63.
M64.
M65.
M66.
M67.
Studies on the application of lyophilization to cheese products: I. Some observations on the characteristics and stability of freeze-dehydrated Cheddar, brick, Munster, blue, cream, and cottage cheese R. I. MEYER AND LOUIS JOKAY, Quartermaster Food and Container Institute for the Armed Forces, Chicago, Illinois.
Studies on the application of lyophilization to cheese products. II. The development of a freeze-dehydrated creamed cottage cheese. Louis JOKAY AND R. I. MEYER~ Quartermaster Food and Container histitute for the Armed Forces, Chicago, Illinois.
Some observations on freezing and thawing phenomena on the attainment of a satisfactory frozen creamed cottage cheese. A. IX. RIsHoI, J. M. RmXENS, AND R. I. MEYER, Quartermaster Food and Container Insti- stute for the Armed Forces, Chicago, Illinois.
Lactic acid content of cottage cheese. W. J. HARPER AND H. E. ]~ANDOLPI-I, Ohio Agricultural Experiment Station and Ohio State University.
A method for improving the flavor of creamed cottage cheese. D. W. MATHER AND F. J. BABEL~ Purdue University.
Influence of a special creaming mixture on the keeping quality of creamed cottage cheese. F. J. BABEL AND D. W. MATHER, Purdue University.
The effect of early lactation skimmilk in making cottage cheese and cul- tures. L. O. LUEDECKE, L. G. HARMON, AND J. R. BRUNNER, Michigan State University.
A study of the microbial flora of cottage cheese during storage. W. "W. OVERCAST AND J. V. BRITTON, Tennessee Agricultural Experiment Station.
8:30-10:30 A.~I. SECTION B. Concentrated and Dried Mil~,s
B. H. WEBB, Chairman Gregory Hall, Room 100
M68.
M69.
M70.
M71.
A method to improve the storage life of frozen concentrated milk. D. R. BRAATZ AND W. C. WINDER, University of Wisconsin.
A study of the effect of variations in the initial viscosity of HTST steri- lized evaporated milk at the time of aseptic homogenization and subse- quent gelling in storage. L. F. EDMONDSON, Eastern Utilization Research and Development Division, USDA, Washington, D. C.
Viscosity studies of concentrated milk, sterilized by the ultra-high-tempera- ture short-time process. H. K. WILSON AND E. O. ~IERREID, University of Illinois.
A study of factors related to the storage stability of foam-dried whole milk. ARJEN TAMSMA, M. J. PALLANSCH, AND T. J. MUCHA, Eastern Utilization Research and Development Division, USDA, Washington, D. C.
OUR ASSOCIATION 745
M72. The effects of variations in processing methods on the " f ree- fa t" and dis- persibility of whole milk powder. E. REINKE AND J. R. BRUNNER, Michigan Agricultural Experiment Station.
M73. The effect of preheat treatments applied separately to cream and skim- milk on the cooked and oxidized flavors in dry whole milk. C. H. A~IUND- SON AND A. M. S~TANSON, University of Wisconsin.
M74. Some volatile carbonyls of stale dry whole milk. O. W. P.~RKS, N. P. WO~G, AND STUART PATTON, Pennsylvania State University.
M75. A solid in-package oxygen absorbent and its use in dr 3" milk products. W. P. JACKSON AND C. C. Loo, Carnation Company, Van Nuys, California.
M76. Factors affecting the visual method of detecting antibiotics in milk. K.M. SHAI~ANI, University of Nebraska.
8:00-9:30 A.M. JOINT WITH EXTENSION SECTION
Automation in Dairy Cattle Feeding South Lincoln Avenue Barns
10:00 A.~.-12:00 M. JOINT WITIt EXTENSION SECTION
(See Extension Section) Automation on Dairy Farms
C. W. NIBLER, Chairman Mumford Hall, Rooms 422-30
1:00-3:00 P.~1. SECTION A AND g . Cottage Cheese Symposium
BURDET HEINEMANN, Chairman Gregory Hall, Room 112
Invited Papers : Cottage cheese starters. F. J. BABEL, Purdue University. Recent advauces in the manufacture of cottage cheese. W. V. PRICE,
University of Wisconsin. Keeping quality of cottage cheese. N. C. ANGEVINE, Meyer-Blanke
Company, St. Louis, Missouri. Factors affecting the yield of cottage cheese. W. A. CORDES, National
Dairy Products Corporation, New York, New York.
PRODUCTION SECTION
8:00-11:00 A.~. Monday, June 15
SECTION A. Rumen Physiology N. L. JACOBSON, Chairman Animal Sciences Laboratory, Room 135
746 JOURNAL OF DAIRY SCIENCE
P1. " G a l a c t o m a n n a n a s e " activity of rumen bacteria. P. P. WILLIA)[S AND R. N. DOETSCH, Univers i ty of Maryland.
P2. Factors affecting the composition of rumen gas. R. G. KINGWILL, R. A. OPPERMANN, W. O. ,NELSON', AND R. E. BROWN, Universi ty of Illinois.
P3. In vivo rumen methanogenesis f rom labeled substrates. R. A. O P P E R M A N N ,
W. O. NELSON, ANI) R. ]~. BROWN, Univers i ty of Illinois.
P4. Studies on amylolysis in the bovine rumen. P. J . PROVOST AND R. N. DOETSCH, Universi ty of Maryland.
P5. The effect of minor changes in the ingredient composition of the rat ion on rumen microbial activity. D. W. CL.,~VPOOL AXU D. R. JACOBSON, Univer- sity of Kentucky.
P6. Continuous culture for s tudying mixed ruInen microorganisms. D. G. STEWART AND R. G. WARNE R, Cornell University.
P7. The effect of concentration on the absorption of volatile f a t ty acids f rom the perfused rumen. J. R. STAUB~'S, R. E. BROWX, C. L. DAVIS, AXD W. O. NELSON, Univers i ty of Illinois.
PS. Rumen metabolism of IRa'-labeled soybean oil. R. S. ALLEN, E. G. HA)I- ~mXD, N. L. JACOBSOX, .aXD F. D. HmL, Iowa State College.
P9. Invest igat ion of the oxidation-reduction potential of rumen contents. R . L . BALDWIN AND R. S. EMERY, Michigan State University.
Methemoglobin and total henmglobin values in bloated cattle. C. L. MOORE A~,~D A. E. DRACY, South Dakota State College.
The carotid ar ter ial blood pressure changes in bloated cattle. C. L. MOORE, South Dakota State College.
Effect of bovine saliva and plant mucin on frothing rumen contents in alfalfa bloat. H. H. \L~x HORX, JR. AND E. E. BARTLEY, Kansas State College.
Roughage capaci ty and efficiency of feed utilization in da i ry cattle. J. B. STONE, G. ~T. TRIMBERGER, C. R. HENDERSON, AND K. L. TI'RK, Cornell University.
8:00-11:00 A.~L SECTION B. Milk Secretion
G. W. TRIMBERGER, Chairman Bevier Hall, Room 180
The use of twin efficiency values to measure differences in lactat ing twins. A. C. LINNERVD, J. B. WILLIAMS, AND J. D. DONKER, Universi ty of Minnesota.
Solids-not-fat content of the niilk of Holstein, Jersey and Sindhi-Jersey cows in a Louisiana herd. J. L. FLETCHER, USDA, Iber ia Livestock Ex- per iment Station, Jeaneret te , Louisiana.
PIO.
P l l .
P12.
P13.
P14.
P15.
OUR ASSOCIATION 747
P16
P17.
P18.
P19.
P20.
P21.
P22.
P23.
P24.
P25.
The effect of state of lactation on antibody production to Brucella antigen. H. STRAUSS, "~V. E. PETERSEN, AND B. CASIPBELL, University of Minnesota.
The relationship between antibody production in the lactating cow and the time interval between subsequent intramammary infusions. H. STRUSS, W. E. PETERSEN, AND B. CAMPBELL, University of Minnesota.
Maintenance, proliferation, and biosynthesis of milk constituents by mam- mary cells in tissue culture. K. E. EBNER AND B. L. LARSON, University of Illinois.
Biochemical characterization of bovine mammary cells grown in tissue culture. C. R. HOOVER, E. C. HAGEMAN, K. E. EBNER, AXD B. L. LARSON, University of Illinois.
Anterior pituitary tissue as a stimulator of mammary duct growth. R .P . REECE, New Jersey Agricultural Experiment Station.
Experimental mammary gland growth. R. C. MOON, D. R. GRtFFITm *ND C. W. TURNER, University of Missouri.
Effect of recurring pregnancy on mammary gland growth in mice. HIROSHI WADA AND C. ~V. TVRNER, University of Missouri.
The effect of oxytocin injections upon the rate of milk flow ill dairy cows. E. W. HuPP, W. W. SNYDER, AND R. C. LEwis, Michigan State University.
A comparison of the intravenous and subcutaneous injections of oxytocin in the lactating cow. B. N. PREMACI=tANDRA, G. W. PIPES, AND R. VON BERS- VORDT-WALLRABE, University of Missouri.
Lactogenic hormone requirement for milk secretion. C. E. GROSVENOR, University of Missouri.
11:00 n.~.-12:00 ~. PRODUCTION SECTION BUSINESS MEETING
N. L. /IACOBSON, Chairman Animal Sciences Laboratory, Room 135
i1:00 A.M.-12:00 M. SECTION A.
N. L. JACOBSON, Chairman Animal Sciences Laboratory, Room 135
1:00-2:00 P.~. Invitational Paper : Critical Features of Good Dairy Feeding Experiments. H. L. Lt-c,s, North Carolina State College.
Discussant: C. R. HENDERSON, Cornell University.
2:00-5:00 P.~. Calf Nutrition
748
P26.
JOURNAL OF DAIRY SCIENCE
The effect of five levels of animal fat in calf milk replacers. W. A. OLSON AND J. B. WILLIAMS, University of Minnesota.
P27. Digestibility of milk fat by yom~g dairy calf. C. W. GRIMES AND K. E. GARDNER, University of Illinois.
P28. Results of studies concerned with determining the minimum protein re- quirement of the very young calf. W. A. HARDISON, C. G. •OBLITT, R. W. ENGEL, AND G. C. GRAF, Virginia Agricultural Experiment Station.
P29. Preliminary studies regarding the optimum protein level of milk replacers. C. A. LASSITER, R. M. GRIMES, C. W. DVNCAN, AND L. D. BROWN, Michigan State University.
P30. Effects of age and diet oll the secretion of pregastric esterase in the calf. J. W. YOUNG, H. A. RA:~[SEX', AND G. II. WISE, North Carolina State College.
P31. Effects of non-fat milk solids and other compounds on the activity of pro- gastric esterase, liver esterase and pancreatic lipase. H. A. RAMSEY, North Carolina State College.
P32. Utilization of various carbohydrates by young calves. M. OKASIOTO, J. W. THOMAS, AND T. L. JOHNSON, Dairy Cattle Research Branch, USDA, Beltsville, Maryland.
P33. Utilization of various sugars by the young dairy calf. J. G. ~'ELU, I~. E. GARDNER, AND I{. A. KENDALL, University o~ Illinois.
P34. The effect of administering several absorbable chemical compounds on the development of rumen papillae in the young dairy calf. E. G. SANDER, R. G. WARNER, AND J. K. LOOSLI. Cornell University.
F35. The effect of various substances on the anatomical development of the rumen in the calf. H. TA~IATE, A. D. McGmLIARD, R. GETTY, AND N. L. JACOBSO~, Iowa State College.
P36. Influence of roughage quality upon rumen development in dairy calves. A. M. S~ITI¢ AND D. A. SOBREVII,LA. Vermont Agricultural Experiment Station.
P37. Corn silage as the only roughage for dairy calves. W. R. MURLEY AND R. D. IV[OCHRIE, North Carolina Agricultural Experinlent Station.
P38. Raising of dairy calves with limited amounts of milk. R. DI CLARK AXD F. W. WHITING, Canada Departmeut of Agricnlture, Lethbridge, Alberta.
1:00-5:00 P.~L SECTION B. Genetics
G. W. TRI3IBERGER, Chairman Bevier Hall, Room 180
P39. Sex ehromatin in the nuclei of bovine somatic tissues. D. R. LANG AND W. HANSEL, Corncll Unviersity.
OUR ASSOCIATION 749
P40. The inheritance of the fl-laetoglobulins in cow's milk. R. D. PI,OW~tAN ~, R. E. TOWNSEND, C. A. KIDDY~ AND S..N'. TIMASHEFF, Dairy Cattle Re- search Branch and Eastern Utilization Research and Development Di- vision, USDA.
P41. Evidence for genetic influence determining the composition of milk. R.G. WASHBURN', IJ. O. GIL3IORE, AND ,J. ~I. TREECE. Ohio Agricultural Experi- ment Station.
P42. Evidence of inherited influences affecting casein yield and percentage as measured by the relationships to sire groups and cellular antigens. J. M. TREECE, L. O. GILMORE, R. G. WASHBURN, AND N. S. FECHHEI3IER, Ohio Agricultural Experiment Station anal The Ohio State University.
P43. Relationship between certain factors and maximum daily milk pro:luetion. J. M. RAKES, O. T. STALLCUP, O. If. HORTON. AND W. GIFFORD, University of Arkansas.
P44. Some hereditary and environmental aspects of persistency of milk yield of Ho!stein-Friesians in Louisiana. CECrL BRAN-TON AND G. D. ~[ILLER, Louisiana State University.
P45. Associations of postpartum intervals with body weight loss, milk produc- tion and butterfat percentage to 90 days following calving. S. E. ~[ARES, A. C. MENGE, AND W. J. TYLER, University of Wisconsin.
P46. Relationship between milk production, body weight, and average daily gains to six months of age. E. W. HOLTZ AND R. E. EBB, State College of Washington.
P47. Effect of age at puberty, six month weight and ealviilg weight on 90 day production in the first lactation of Holstein heifers. A. C. ~IENGE, S. E. MARES, W. J. TYLER, AND L. E. CASIDA. University of Wisconsin.
P48. Variables affecting the ratio of total milk pro~.lueed in 305 days to monthly milk production. R. C. LAMB A:,-D L. D. McGILHARD. Michigan State Uni- versity.
P49. Some effects of inbreeding with selection on nfilk yield and growth in milk goats. E. E. ORMISTON AND R. W. TOUCHBERRY. University of Illinois.
P50. Effects of crossbreeding on milk and butterfat yield. R. W. TOUCItBERRY AND F. N. DICKINSON', University of Illinois and Dairy Husbandry Re- search Branch, USDA, Urbana, Illinois.
P51. Effect of age, season, stage of lactation, classifier, and )'ear on type ratings of Holstein cows. C. J. \VILcOX, K. O. PsAu, R. E..~,IATHER, AND J. W. BARTLETT, New Jersey Agricultural Experiment Station.
P52. Comparison of the type characteristics of naturally and artificially sire:l Holstein-Friesian cows in Ontario. J. C. REN'NIE A.','D G. R. BARR. Ontario Agricultural College.
750 JOURNAL OF DAIRY SCIENCE
P53.
P54.
P55.
Heritabilities of type appraisal traits and their genetic correlations with production. L. D. VAN VLECK, G. \~. O'BLENESS, AND C. R. HENDERSON, Cornell University.
Heritability and repeatability estimates of production and type of Guernsey cattle. E. R. BEROCSEK, J. A. "~7HATLEY, JR., R. D. MORRISON, S. D. MUS6RAVE, AND W. R. HARVEY, Oklahoma State University and Agri- cultural Research Service, Beltsville, Maryland.
Expected genetic progress by progeny testing. C. R. HENDERSON, Cornell University.
5:00-6:00 P.~. JOINT WITH EXTENSION SECTION Joint Committee Reports (See Extension Section)
Animal Sciences Laboratory, Room 135
5:00-6:00 P.~. PROGRA~ SPONSORED BY ASSOCIATION'S EDUCATION COMMITTEE
J. T. LAZAR, JR., Chairman Gregory Hall, Room 112
8:00-10:00 A.M. Tuesday, June 16
SECTION A. General Physiology N. L. JACOBSON, Chairman Animal Sciences Laboratory, Room 135
P56. Isotope dilution as a measure of acetate "poo l " size, turnover time and endogenous acetate production. C. L. DAVIS, R. E. BROW-',', J. R. STAUBUS, AND W. O. ~ELSON, University of Illinois.
P57. Water consumption in dairy cattle as influenced by environmental temper- atures and urine excretion. T. H. KA.~IAI., It. D. JOHNSON, AND A. C. RAGSDALE, University of Missouri.
P58. Calcium and inorganic phosphorus levels in bovine serum and urine, fol- lowing dihydrotachysterol administration. K. A. KENDALL AND K. E. HARSHBARGER, University of Illinois.
P59. Twenty-four hour 17-keto steroid excretion in the cow. W. F. WILLIAMS, University of Maryland.
P60. Some blood changes following bilateral adrenalectomy in the bull calf. V. L. ESTERGREEN, JR. AND N. L. \'ANDEMARK, University of Illinois.
P61. Comparison of methods of measuring thyroid function in dairy cattle. J. E. JOHNSTON, G. A. HINDERY, W. T. BURNETT, AND A. GUIDRY, Louisiana State University.
OUR ASSOCIATION 751
P'62. Efficiency of absorption of crystalline L-thyroxine and of thyroxine in thyroglobulin from the gastrointestinal tract of lactating cows. J. P. MIXNER AND H. D. LENNON, JR., New Jersey Agricultural Experiment Station.
P63. The effect of feeding L-thyroxine upon plasma protein-bound-iodine in lactating cows. E. W. SWAXSON AND A. F. McFEE. University of Tennessee.
P64. The effect of sudden changes in forage ration on thyroidal 1-131 release rate. J. H. VANDERSALL, J. W. HIBBS, AND I{. R. CONRAD, Ohio Agricul- tural Experiment Station.
8:00-10:00 A.X. SECTION B. Silage and Pasture
G. W. TRI~[BERGER, Chairman Bevier Hall, Room 180
P65. Dry matter losses in small stack silos as affected by covering techniques. J. C. DERBYSHIRE, C. ILl. GORDON, AND J. R. McCALMONT, Dairy Cattle and Agricultural Engineering Research Branches, USDA, Beltsville. Maryland.
P66. Some observations on stack silos sealed with plastic covers. D. L. HILL, C. H. NOLLER, C. M. BROWN, AND X. S. LVNDQVIST, Purdue University.
P67. Preservation losses in bunker, concrete stave and in glass-lined silos. H .H . VOELKER, South Dakota State College.
P68. Value of bacitracin as a preservative for grass silage on milk production. L. L. RUSOFF~ C. P. BREIDENSTEIN, AND J. B. FRYE, JR., Louisiana Agricul- tural Experiment Station.
P69. Further comparisons of alfalfa ha)- and alfalfa silage for growing dairy heifers. J. W. THO~,IAS, Dairy Cattle Research Branch, USDA, Beltsville, Maryland.
P70. Effect of supplements Oll utilization of corn silage, oat ha)', and coastal Bermuda hay rations. W. A. KING, J. LEE, tI. J. WEBB, AND D. B. RODERICK, Clemson College.
P71. Comparative value of forage sorghums and corn as silages for lactating cows. F. G. OWEN, J. R. KUIKEN, AND O. J. WEBSTER, University of Nebraska.
P72. The interaction between spring pasture and grass silage when fed to dairy cows. J. K. MILLER, W. J. MILLER, AND J. L. CAR-~m-',', University of Georgia.
P73. A comparison of the performance of dairy cattle on continuously-grazed and strip-grazed pasture. A. M. SO~I.~IER, H. H. 0LSON, A. REED, AND H. F. BENSOX, Southern Illinois University.
752 JOURNAL OF DAIRY SCIENCE
10:15-12:30 P.M. GENERAL BUSINESS MEETING OF THE ASSOCIATION
K. L. TURK, C h a i r m a n
University Auditorium
2:00-4:30 P.~{. SECTION A.
JOINT WITH EXTENSION SECTION
Symposium: Estimating the Energy Value of Feeds N. L. JACOBSON, C h a i r m a n
Animal Sciences Laboratory, Room 135
The problem from the extension standpoint. L. R. FRY)~AX, University of Illinois.
Merits and limitations of measuring and of estimating the energy contents of feeds. MAx KLEIBER, University of California.
Methods of determining the energy value of feeds. W. P. FLATT, Dairy Husbaudry Research Braneh, USDA, Beltsville, Maryland.
Use in feeding practice of existing information concerning energy me- tabolism. J. T. REIn, Cornell University.
2:00-4:30 P.~i. SECTION B. Reproductive Physiology
G. W. TRIMBERGER, Chairman Bevier Hall, Room 180
P74. Effects of potassium nitrate on bovine semen production and various spermatozoan characteristics. J. D. SIKES, University of Missouri.
P75. The effects of various cooling methods o'n spermatozoan livability. A. F. MCFEE, University of Tennessee.
P76. Gas-pressure technique for the preservation of bovine spermatozoa. R.H. KLIEWER AND F. ]~. WOLBERG, Oregon State College.
P77. Use of egg yolk in skimmilk-glyeerol diluents to iniprove bovine sperm livability and simplify glyeerolation. E. W. WICKERS~IA.~ AND J. O. AL~qUIST, The Pennsylvania State University.
P78. Coconut milk citrate plus egg yolk as an extender for bovine sperm at low temperatures. C. :~ORMAN, H. S. MIN, 1. D. PORTERFIELD, AND R. S. DUNBAR, JR., West Virginia University.
P79. Reassessment of the "Pasteur effect" in bovine spermatozoa. R. P. SCHMIDT, J. R. LODGE, AND G. W. SALISBURY, University of Illinois.
OUR ASSOCIATION 753
P80. Further studies on liquid nitrogen preservation of bovine semen. B .W. PICKET% R. A. JONES, AND W. A. COWAN, University of Connecticut, AND PAUL HELLER, New England Selective Breeding Association, Inc., Woodbridge, Connecticut.
P81. Prolonged maintenance of metabolically and functionally active bovine sperm at room temperatures. C. NORM*N, C. E. Jomx:SOX. I. D. PORTER- FIELD, AND R. S. DUNBAR, JR., West Virginia University.
P82. The effect of promazine and chlorpromazine on the motility and fertility of bovine semen. R. H. FOOTE, Cornell Vl~iversity.
P83. The production of epididynial-like ejaculated bovine spermatozoa. C.N. GRAVES AND G. W. SALISBURY, University of Illinois.
4:30-5:30 P.M. JOINT WITH EXTENSION SECTION
C. F. FOREMAN, Chairman Superintendents of Official Testing Mumford Hall, Room 103
4:30-6:00 P.M. STUDENT AFFILIATES AND FACULTY ADVISERS' MEETING
W. W. SNYDER, Chairman Gregory Hall, Room 100
8:00 A.M.--12:00 M.
P84.
P85.
P86.
P87.
P88.
Wednesday, June 17
SECTION A. General Nutrition and Management N. L. JACOBSON, Chairman Animal Sciences Laboratory, R~)om 135
Calcium and magnesium determination in bovine blood serum by versene titration. G. M. WARD, R. C. LINDSAY, AND C. A. VAIR, Colorado State University.
Blood and excretion levels of calcium and phosphorus associated with varied mineral supplements fed. K. A. KENDALL AND J. H. BYERS, Uni- versity of Illinois.
Response of lactating cows to dextrin and sodium propionate fed in the concentrate. G. E. HAWKINS, Alabama Polytechnic Institute.
A proposed method for the analysis of forages. P. J. VAN SOEST AND L. A. MOORE, Dairy Cattle Research Branch, USDA, Beltsville Maryland.
Automatic recording equipment for use in energy metabolism studies with dairy cattle. W. P. FLATT AND H. F. RIGHTER, Dairy Cattle Re- search Branch, USDA, Beltsville, Maryland.
754 JOURNAL OF DAIRY SCIENCE
P89.
Pg0.
P91.
P92.
P93.
A comparison of possible primers for the determination of the gross energy of urine and high moisture materials. C. E. CopPOCK A~D P. J. VA~ ~ SOEST, Dairy Cattle Research Branch, USDA, Beltsville, Maryland.
The effect of three different levels of TDN intake upon body weight and nfilk production. H. L. DALTOX, W. J. MILLER, AND Z. D. DONKER, Uni- versity of Georgia.
Nutritive value of orchard grass as affected by level of nitrogen fertiliza- tion and stage of maturity. J. W. BRATZLER, E. KECK, JR., L. F. MARRIOTT, AND J. B. WASHKO, Pennsylvania Agricultural Experiment Station.
Nitrogen-fertilized orchard grass hay as compared to alfalfa for milk pro- duction. C. H. Ra.~.IAGE, E. F. OGRINZ, C. EBY, AND JR. E. MATYIER, Rut- gers Dairy Research Farm, Sussex, New ,Jersey.
The nutritive value of reed canary grass hays grown under different levels of nitrogen fertilization. W. V. CHALUPA, J. L. CASO~q AND B. R. BAU.~I- GARDT, Rutgers--The State University, New Brunswick, New Jersey.
P94. Effect of supplementing dry feed on the digestibility of succulent forages. J. M. WING, University of Florida.
P95. The digestibility of alfalfa hay by dairy steers as influenced by ealeimn and phosphorus supplements. J. H. BYERS, University of Illinois.
P96. Digestibility of Beltsville first-cut forages as affected by date of harvest. E. A. KAtiE A~'D L. A. MOORE, Dairy Cattle Research Branch, USDA, Beltsville, Maryland.
P97. Low-fat milk production from high level feeding of ammoniated dried beet pulp. G. M. WARD, GEORGE ~'IDACS, AND W. H. PALMER, Colorado State University.
P98. Effect of pelleting on rate of concentrate consumption by dairy cows. T. H. BLOSSER AND A. O. SHAVe', State College of Washington.
P99. Observations regarding an unclean flavor in milk produced by feeding brome grass. C. F. FOREMAN, E. W. BIRD, F. E. NELSON, AND W. S. ROSENBERGER, Iowa State College.
A standard for the evaluation of dairy herd management. P. L. KELLY, University of Nebraska.
Study on the use of plastic hose for CIP niilk pipelines. M. H. ALEX- ANDER AND E. E. ORMISTON, University of Illinois.
8:00 A.~f.--12:00 ~. SECTmX B. Reproductive Physiology
G. W. TRIMBERGER, Chairman Bevier Hall, Room 180
P100.
P101.
OUR ASSOCIATION 755
P]02.
P103.
P104.
P105.
P106.
P107.
P108.
P109.
Pl10.
P l l l .
Pl12.
Pl13.
Pl14.
Pl15.
Pl16.
Pl17.
The influence of aeration upon phosphorous constituents, fructose and lactate in bull semen incubated at 37 ° C. Jo.~x Dixon AND ~{. H. EHLERS, State College of Washington.
Effect of visible light on motility, life-span and respiration of bovine spermatozoa. C. NORMAN, U. GOLDBERG, C. E. JOI~XSON, AND I. D. PoaTnm FIELD, West Virginia University.
Studies on sulfonamide inhibition of glycolysis by bovine spermatozoa. J. R. LODGE AND H. e. BROQUIST, University of Illinois.
The production of carnosine by bovine spermatozoa. W. R. ANDERSON AND R. J. FLIPSE, Pennsylvania Agricultural Experiment Station.
Oxidation of fat ty acids by bovine spermatozoa. R. J. FLIPSE, Pennsyl- vania Agricultural Experiment Station.
Spermatogenesis in bulls in relation to semen production. P. T. Cuees AND R. C. LABEX, University of California.
Seasonal effects on apparent fertility of dairy bulls in the Southwest. M. A. BaOWN AND R. R. HARRIS, Texas A & M College.
Preliminary life-expectancy estimates for desirable bulls in artificial service. R. B. BECKER AND P. T. DIX ARNOLD, Florida Agricultural Ex- periment Station.
The influence of progesterone on body temperature of spayed cows. T .R. WRENN, JOEL BITMAN, AND J. F. SYKES, Dairy Cattle Research Branch, USDA, Beltsville, Maryland.
Effect of injected progesterone on corpus luteum function in cattle. R.G. LOY~ R. G. ZL'V[BELMAN, AND L. E. CASIDA, University of Wisconsin.
The routine determination of progestins in bovine ovaries. F. STROM- SHAg, J. GORSKI, AND R. E. ERB, State College of Washington.
/Eduction of lactation in the bovine; 90 versus 180 day progesterone- estrogen treatment. H. H. OLso.x AND J. R. DAVIS, Southern Illinois University. Water and electrolyte concentration and distribution in cow uteri. H . W . HAWK, JOEL BITMAN, HELENE CECIL, J. N. WILTBANK, J. BOND, AND J. F. SYKES, Dairy Cattle and Beef Cattle Research Branches, USDA, Beltsvilte, Maryland.
Quantitative measurements of estrogens in bovine placental cotyledons. E. L. VEENHUIZEN, AND J. GORSK~, State College of Washington.
Further studies on the regulation of the bovine estrous cycle by oxytocin injections. WILLIASI HANSEL, Cornell University.
A comparison of three methods of assay for urinary estrogenic substances. D. W. NELSON, K. O. McDoUGELL, AND E. P. SMITH. Montana State College.
756 JOURNAL OF DAIRY SCIENCE
Pl18.
PI19.
Methods of managing postpartum anestrus in dairy cows. VICTOR HURST, South Carolina Agricultural Experiment Station.
Postpartum regression of bovine caruneles. G. B. MARION AND H. T. GIER, Kansas State College.
Symposium: Improving Dairy Cattle by Breeding •. L. JACOBSON, Chairman Animal Sciences Laboratory, Room 135
Current Status and Outlook. J. L. LUSH, Iowa State College. Discussant: W. J. T~'LER, University of Wisconsin.
Progeny Testing Methods in Europe. IVAR JOHANSSON, Royal Agricul- tural College of Sweden (GEORGE A. MILLER Visiting Professor, Uni- versity of Illinois). Discussant: N. D. BA]'LEY, Breeding and Management Section, USDA,
Beltsville, Maryland.
EXTENSION SECTION
Monday, June 15 8:00-10:30 A.M. Dairy Records
D. E. VOELKER, Chairman Mumford Hall, Rooms 422-30
EI. A demonstration of the TeSa reagent butterfat test kit. B. JACQUITH, Technical Industries, Fort Lauderdale, Florida.
E2. A progress report on the TeSa reagent test for butterfat. R. G. WASHRURN, Ohio Agricultural Experiment Station, Wooster.
E3. The accuracy and usefulness of central processing DHIA fee:t records. J. D. BURKE, Cornell University.
E4. The proposed DHIA record plan. J. F. CAVANAUC, H, Columbus, Ohio.
10:30 A.~.--12:00 ~. EXTENSION SECTION BUSINESS MEETING
L. A. JOHNSON, Chairman Mumford Hall, Rooms 422-30
Report of the Dairy Records Committee D. E. VOELKER, Chairman
OUR ASSOCIATION 757
Report of the 4-H Club Committee C. C. OLSON, Chairman
Report of Teaching Methods Committee L. R. FRYMAN, Chairman
Report of the Resolutions Committee C. H. PARSONS, Chairman
1:30-4:30 P.M. Teaching Methods
L. R. FRYMA~,', Chairman Mumford Hall, Rooms 422-30
E5. A nationwide dairy record-keeping campaign. R. E. BURLESON, Federal Extension Service, USDA.
E6. Visuals--good, bad and indifferent. HADLEY READ, J. H. BEHRENS, AND J. C. EVERLY, University of Illinois.
Presentation and Discussion of Exhibits
5:00--6:00 P.M.
JOINT WITH PRODUCTION SECTION Joint Committee Reports
N. L. JACOBSON, Chairman Animal Sciences Laboratory, Room 135
Breeds relation. C. F. FOREMAN, Iowa. Dairy cattle breeding. H .W. CARTER, New York. Dairy cattle type. R. ALBRECTSEN, New York Dairy cattle health. W. A. KING, South Carolina
5:00-6:00 P.M. Program Sponsored by Association's Education Committee
o 1. T. LAZAR, JR., Chairman Gregory Hall, Room 112
8:00-10:00 A.M.
E7.
ES.
Tuesday, June 16
4-H Program. Relationship of Feeding Levels and Growth to Production. C. C. OLSON, Chairman Mumford Hall, Room 422-30
The Penn State forage testing service. R. S. ADAMS, J. W. BRATZLER AND ,~. E. TAYLOR, The Pennsylvania State University.
Influence of plane of nutrition during early life upon the performance of dairy cows. J. T. REID, Cornell University.
758 JOURNAL OF DAIRY SCIENCE
Eg. Field observations and data on the effect of body weight oil the production of dairy heifers. R. S. ADAMS AND L. W. SPECHT, The Pemlsylvania State University.
10:15 ,.~I.-12:15 P.M. General Business Session of Association
K. L. TURK, Chairman University Auditorium
2:00-4:30 p.~1. JOINT WITH PRODUCTION SECTION Symposium: Estimating the Energy Value of Feeds (See Production Section)
Animal Sciences Laboratory, Room 315
4:30-5:30 P.M.
~OINT WITH PRODUCTION SECT1ON Meeting of Superintendents of Official Testing
C. F. FORE~IAN, Chairman Mumford Hall, Room 103
4:30-6:00 p.m Student Affiliates and Faculty Advisers' Meeting
W. W. S:~YDER, Chairman Gregory Hall, Room 100
Wednesday, June 17 8:00-9:30 A.M. JOINT WITH I~IANUFACTURING SECTIO~N" Automation in Dairy Cattle Feeding
South Lincoln Avenue Barns
El0. Automatic dairy feeding unit. GENE C. SHOVE AND K. E. HARSHB.~-RGER, University of Illinois.
10:00 A.lm-12:00 M. JOINT WITII ~/[ANUFACTURING SECTION
Automation on Dairy Farms C. W. NIBLER, Chairman Mumford Hall, Rooms 422-30
E l i . Economic aspects of automation on the dairy farnl. R. N. Vxx ARSDALL, Farm Economies Research Division, ARS. USDA, Urbana.
E12. Cow pools. F. J. ARNOLD, Iowa State College.
OUR ASSOCIATION 759
1:00-3:00 P.~I. JOINT WITH PRODUCTION SECTION
Symposium : Improving Dairy Cattle by Breeding N. L. JACOBSON, Chairman Animal Sciences Laboratory, Room 135
Current Status and Outlook. J. L. Lus~, Iowa State College. Discussant: W. J. TYLER, University of Wisconsin.
Progeny Testing Methods in Europe. IVAR JOHANSSON, Royal Agricultural College of Sweden (GEORGE A. MILLEn Visiting Professor, University of Illinois).
Discussant: N. D. BAYLEY, Breeding and Management Section, USDA, Beltsville, Maryland.
