Articles:

Guest Editorial: What Can the American Dairy Science Association Do for the Dairy Industry?

I. A. Gould
J. Dairy Sci. 1968 51: 5-14. [Abstract] [PDF]  

Association Affairs:

Memorial: Ralph P. Tittsler

J. Dairy Sci. 1968 51: 316. [Abstract] [PDF]  

Research Papers:

Properties of Substances Inhibitory to Pseudomonas fragi Produced by Streptococcus citrovorus and Streptococcus diacetilactis

A. J. R. Pinheiro, B. J. Liska, and C. E. Parmelee
J. Dairy Sci. 1968 51: 183-187. [Abstract] [PDF]  

Diacetyl Production and Utilization by Lactobacillus Species

T. W. Keenan and R. C. Lindsay
J. Dairy Sci. 1968 51: 188-191. [Abstract] [PDF]  

Stabilization of _S-Casein by Carrageenan

P. M. T. Hansen
J. Dairy Sci. 1968 51: 192-195. [Abstract] [PDF]  

Effect of Various Physical Treatments on Certain Organochlorine Hydrocarbon Insecticides Found in Milk Fat

Manfred Kroger
J. Dairy Sci. 1968 51: 196-198. [Abstract] [PDF]  

Methionine as a Precursor of Methyl Sulfide in Cows' Milk

J. R. Dunham, George Ward, R. Bassette, and M. C. Reddy
J. Dairy Sci. 1968 51: 199-201. [Abstract] [PDF]  

Effects of Multiple Feeding upon Performance of Guernsey Heifers Fed Urea-Treated Corn Silage

D. M. Fletcher, A. G. Lane, J. R. Campbell, and F. A. Martz
J. Dairy Sci. 1968 51: 202-204. [Abstract] [PDF]  

Effect of Dietary Cadmium and Ethylenediaminetetraacetate on Dry Matter Digestibility and Organ Weights in Zinc Deficient and Normal Ruminants

J. M. Hiers, Jr., W. J. Miller, and D. M. Blackmon
J. Dairy Sci. 1968 51: 205-209. [Abstract] [PDF]  

Estrogen-Progesterone Requirements for Udder Development in Ovariectomized Heifers

S. C. Sud, H. A. Tucker, and J. Meites
J. Dairy Sci. 1968 51: 210-214. [Abstract] [PDF]  

Observations on the Size of Bovine Ova

Durward Olds, A. P. Graden, C. R. Mochow, and L. R. Mutter
J. Dairy Sci. 1968 51: 215-216. [Abstract] [PDF]  

Symposium:

International Symposium: Training of United States and Foreign Nationals for Leadership in Dairying in Developing Nations: Introduction

J. Dairy Sci. 1968 51: 232. [Abstract] [PDF]  

International Symposium: Training of United States and Foreign Nationals for Leadership in Dairying in Developing Nations: Role of the United States University in International Education and Research

D. Woods Thomas
J. Dairy Sci. 1968 51: 232-237. [Abstract] [PDF]  

International Symposium: Training of United States and Foreign Nationals for Leadership in Dairying in Developing Nations: Graduate Training in the United States as Seen by a National from a Developing Country

Leopoldo S. Castillo
J. Dairy Sci. 1968 51: 237-242. [Abstract] [PDF]  

International Symposium: Training of United States and Foreign Nationals for Leadership in Dairying in Developing Nations: College Course in International Food Development

Frank V. Kosikowski
J. Dairy Sci. 1968 51: 242-245. [Abstract] [PDF]  

International Symposium: Training of United States and Foreign Nationals for Leadership in Dairying in Developing Nations: Food for Freedom with Some Implications

Martin Kriesberg
J. Dairy Sci. 1968 51: 245-250. [Abstract] [PDF]  

Advantages and Limitations of Consolidation of Commodity Groups in Preparing Students for a Career in Dairy Science: Introduction

A. W. Rudnick, Jr.
J. Dairy Sci. 1968 51: 251. [Abstract] [PDF]  

Advantages and Limitations of Consolidation of Commodity Groups in Preparing Students for a Career in Dairy Science: Dairy Science in an Animal Science Department

C. F. Foreman
J. Dairy Sci. 1968 51: 251-254. [Abstract] [PDF]  

Advantages and Limitations of Consolidation of Commodity Groups in Preparing Students for a Career in Dairy Science: Dairy Technology in a Food Science Department

Joseph Tobias
J. Dairy Sci. 1968 51: 255-259. [Abstract] [PDF]  

Advantages and Limitations of Consolidation of Commodity Groups in Preparing Students for a Career in Dairy Science: Dairy Manufacturing in a Dairy Science Department

H. B. Henderson
J. Dairy Sci. 1968 51: 259-262. [Abstract] [PDF]  

Advantages and Limitations of Consolidation of Commodity Groups in Preparing Students for a Career in Dairy Science: How an Administrator Evaluates a Teaching Program

H. L. Everett
J. Dairy Sci. 1968 51: 262-264. [Abstract] [PDF]  

Nitrogen Utilization by the Ruminant: Nitrogen Metabolism in the Ruminant

D. R. Waldo
J. Dairy Sci. 1968 51: 265-275. [Abstract] [PDF]  

Nitrogen Utilization by the Ruminant: Nitrogen Utilization by the Ruminant. Appreciation of Its Nutritive Value

H. R. Conrad and J. W. Hibbs
J. Dairy Sci. 1968 51: 276-285. [Abstract] [PDF]  

Nitrogen Utilization by the Ruminant: Some Aspects of Ammonia Toxicity in Animal Cells

W. J. Visek
J. Dairy Sci. 1968 51: 286-295. [Abstract] [PDF]  

Dairy Cattle Breeding: Importance of Family Structure in the Dairy Cattle Population

Jay L. Lush
J. Dairy Sci. 1968 51: 296-306. [Abstract] [PDF]  

Dairy Cattle Breeding: Changes in USDA Sire Summary Procedures

R. D. Plowman and B. T. McDaniel
J. Dairy Sci. 1968 51: 306-311. [Abstract] [PDF]  

Dairy Cattle Breeding: Percentage of Sire's Daughters Having a Second, Fourth, and Sixth Lactation

H. Wilmot Carter
J. Dairy Sci. 1968 51: 312-313. [Abstract] [PDF]  

Dairy Cattle Breeding: Importance of Traits Other than Milk Production in a Breeding Program

C. E. Meadows
J. Dairy Sci. 1968 51: 314-316. [Abstract] [PDF]  

Technical Notes:

Spectrophotometric Method for Determination of Heat-Activated Sulfhydryl Groups of Skimmilk

M. Koka, E. M. Mikolajcik, and I. A. Gould
J. Dairy Sci. 1968 51: 217-219. [Abstract] [PDF]  

Effect of Direct Steam Heating and Vacuum Treatment on Levels of Pesticide Residues in Milk

R. A. Ledford, J. H. Chen, and W. F. Shipe
J. Dairy Sci. 1968 51: 219-220. [Abstract] [PDF]  

Method for Determining Volatile Acids in Cultured Dairy Products

W. L. Hempenius and B. J. Liska
J. Dairy Sci. 1968 51: 221-222. [Abstract] [PDF]  

Inhibitory Effect of Selected Organic Chemicals on Pseudomonas fragi

A. J. R. Pinheiro, B. J. Liska, and C. E. Parmelee
J. Dairy Sci. 1968 51: 223-224. [Abstract] [PDF]  

Identification and Quantitative Determination of 2-Furfurol in Sterilized Concentrated Milk

R. G. Arnold and R. C. Lindsay
J. Dairy Sci. 1968 51: 224-226. [Abstract] [PDF]  

Quality of Commercial Buttermilks

T. W. Keenan, F. W. Bodyfelt, and R. C. Lindsay
J. Dairy Sci. 1968 51: 226-227. [Abstract] [PDF]  

Direct Determination of Rumen Volatile Fatty Acids by Gas Chromatography

T. Hamada, S. Omori, K. Kameoka, S. Horii, and H. Morimoto
J. Dairy Sci. 1968 51: 228-229. [Abstract] [PDF]  

Sodium Bicarbonate in an All-Concentrate Free-Choice Feeding Regimen

Magnar Ronning
J. Dairy Sci. 1968 51: 230-231. [Abstract] [PDF]  

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