2026 William Chalupa: Animal Science and Veterinary Researcher – H-Index, Publications & Awards

Discipline name	D-Index	World Ranking	National Ranking	Publications	Citations
Animal Science and Veterinary	35	1706	493	91	5156

Discipline name

D-Index

World Ranking

National Ranking

Publications

Citations

Animal Science and Veterinary

1706

493

5156

Overview

William Chalupa was affiliated with the University of Pennsylvania in the United States during their academic career.

The scientist did not have publicly recorded recent papers or book publications. There are no documented frequent co-authors or main fields and subfields of study available. Similarly, no frequent publication venues or main topics of work have been listed for William Chalupa.

There are no known awards or honors documented for this individual.

Due to the lack of extensive publication or research detail, it is not possible to provide a more detailed overview of their scholarly contributions or specific scientific focus areas.

Best Publications

Rumen Bypass and Protection of Proteins and Amino Acids

William Chalupa

389
Citations
A net carbohydrate and protein system for evaluating cattle diets: IV. Predicting amino acid adequacy.

J D O'Connor;C J Sniffen;D G Fox;W Chalupa

297
Citations
Responses in urea and true protein of milk to different protein feeding schemes for dairy cows.

L.D. Baker;J.D. Ferguson;W. Chalupa

288
Citations
Impact of Protein Nutrition on Reproduction in Dairy Cows

James D. Ferguson;William Chalupa

246
Citations
Research-ArticleRuminal Fermentation In Vivo as Influenced by Long-Chain Fatty Acids1

William Chalupa;Bonnie Vecchiarelli;Andrew E. Elser;D.S. Kronfeld

202
Citations
Feeding Calcium Salts of Fatty Acids to Lactating Cows

P. Schneider;D. Sklan;W. Chalupa;D.S. Kronfeld

199
Citations
Degradation of Amino Acids by the Mixed Rumen Microbial Population

William Chalupa

188
Citations
The effect of ruminal bypass lysine and methionine on milk yield and composition of lactating cows

S. Xu;J.H. Harrison;W. Chalupa;C. Sniffen

170
Citations
Infertility in dairy cattle fed a high percentage of protein degradable in the rumen.

J.D. Ferguson;T. Blanchard;D.T. Galligan;D.C. Hoshall

149
Citations
Milk fatty acids. I. Variation in the concentration of individual fatty acids in bovine milk.

P.J. Moate;P.J. Moate;W. Chalupa;R.C. Boston;I.J. Lean

140
Citations
Effect of dietary crude-protein type on fertilization and embryo quality in dairy cattle.

T Blanchard;J Ferguson;L Love;T Takeda

137
Citations
Effects of hard fats on in vitro and in vivo rumen fermentation, milk production and reproduction in dairy cows.

J.D. Ferguson;D. Sklan;W.V. Chalupa;D.S. Kronfeld

133
Citations
A model to describe ruminal metabolism and intestinal absorption of long chain fatty acids

P.J Moate;W Chalupa;T.C Jenkins;R.C Boston

124
Citations
Problems in feeding urea to ruminants.

Unknown

113
Citations
Response of Dairy Cows to Sodium Bicarbonate and Limestone in Early Lactation

J.A. Rogers;L.D. Muller;C.L. Davis;W. Chalupa

102
Citations
Effects of monensin and amicloral on rumen fermentation.

William Chalupa;William Corbett;J. R. Brethour

98
Citations
Degradation of amino acids by pure cultures of rumen bacteria.

Curtis Scheifinger;Neville Russell;William Chalupa

98
Citations
Ruminally Protected Lysine and Methionine for Lactating Dairy Cows Fed a Diet Designed to Meet Requirements for Microbial and Postruminal Protein

P.H. Robinson;W. Chalupa;C.J. Sniffen;W.E. Julien

98
Citations
Nutritional implications of somatotropin for lactating cows.

William Chalupa;David T. Galligan

93
Citations
Rumen fermentation in vitro as influenced by long chain fatty acids.

Unknown

91
Citations
Discussion of Protein Symposium

William Chalupa

79
Citations
Influence of abomasal infusion of high levels of lysine or methionine, or both, on ruminal fermentation, eating behavior, and performance of lactating dairy cows.

P. H. Robinson;W. Chalupa;C. J. Sniffen;W. E. Julien

77
Citations
Evaluation and application of the CPM Dairy Nutrition model

L. O Tedeschi;W. Chalupa;E. Janczewski;D. G. Fox

74
Citations
Digestion and Absorption of Lipids and Bile Acids in Sheep Fed Stearic Acid, Oleic Acid, or Tristearin

D. Sklan;D. Sklan;A. Arieli;A. Arieli;W. Chalupa;W. Chalupa;D.S. Kronfeld;D.S. Kronfeld

64
Citations
Feeding behavior changes of cattle during introduction of monensin with roughage or concentrate diets.

C. A. Baile;C. L. McLaughlin;E. L. Potter;W. Chalupa

60
Citations

Frequent Co-Authors

Charles J. Sniffen Cornell University

Raymond C. Boston St Vincent's Hospital

James D. Ferguson University of Pennsylvania

Peter J. Moate University of Melbourne

Ian J. Lean University of Sydney

Joseph H. Harrison Washington State University

P.H. Robinson University of California, Davis

Elliot Block Princeton University

Zhengxia Dou University of Pennsylvania

David Sklan Hebrew University of Jerusalem

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