William Chalupa

4.7k total citations
99 papers, 3.5k citations indexed

About

William Chalupa is a scholar working on Agronomy and Crop Science, Genetics and Plant Science. According to data from OpenAlex, William Chalupa has authored 99 papers receiving a total of 3.5k indexed citations (citations by other indexed papers that have themselves been cited), including 70 papers in Agronomy and Crop Science, 31 papers in Genetics and 14 papers in Plant Science. Recurrent topics in William Chalupa's work include Ruminant Nutrition and Digestive Physiology (64 papers), Reproductive Physiology in Livestock (32 papers) and Genetic and phenotypic traits in livestock (30 papers). William Chalupa is often cited by papers focused on Ruminant Nutrition and Digestive Physiology (64 papers), Reproductive Physiology in Livestock (32 papers) and Genetic and phenotypic traits in livestock (30 papers). William Chalupa collaborates with scholars based in United States, Japan and Israel. William Chalupa's co-authors include James D. Ferguson, C.J. Sniffen, D. S. Kronfeld, D. Sklan, David T. Galligan, Linda D. Baker, R.C. Boston, D. G. Fox, Peter J. Moate and John D. O’Connor and has published in prestigious journals such as Bioresource Technology, Journal of Nutrition and Journal of Dairy Science.

In The Last Decade

William Chalupa

97 papers receiving 3.1k citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name h Career Trend Papers Cites
William Chalupa United States 32 2.9k 1.3k 635 419 343 99 3.5k
J.T. Huber United States 30 2.2k 0.7× 978 0.8× 755 1.2× 370 0.9× 302 0.9× 116 2.8k
J.H. Clark United States 41 4.3k 1.5× 2.2k 1.7× 797 1.3× 512 1.2× 414 1.2× 94 5.0k
W.H. Hoover United States 31 3.3k 1.1× 1.2k 0.9× 700 1.1× 318 0.8× 505 1.5× 66 3.8k
T. Hvelplund Denmark 29 2.5k 0.8× 909 0.7× 652 1.0× 320 0.8× 534 1.6× 105 3.0k
J. G. Buchanan-Smith Canada 28 1.6k 0.6× 719 0.6× 891 1.4× 394 0.9× 414 1.2× 95 2.5k
G.A. Varga United States 42 3.9k 1.3× 1.7k 1.4× 869 1.4× 323 0.8× 493 1.4× 124 4.6k
G. B. Huntington United States 37 3.5k 1.2× 1.6k 1.2× 1.3k 2.0× 311 0.7× 221 0.6× 110 4.4k
Aila Vanhatalo Finland 34 2.4k 0.8× 919 0.7× 442 0.7× 555 1.3× 322 0.9× 125 3.0k
T. N. Barry New Zealand 24 1.8k 0.6× 467 0.4× 567 0.9× 263 0.6× 473 1.4× 75 2.3k
D.R. Waldo United States 26 2.2k 0.8× 940 0.7× 616 1.0× 251 0.6× 268 0.8× 66 2.5k

Countries citing papers authored by William Chalupa

Since Specialization
Citations

This map shows the geographic impact of William Chalupa's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by William Chalupa with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites William Chalupa more than expected).

Fields of papers citing papers by William Chalupa

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by William Chalupa. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by William Chalupa. The network helps show where William Chalupa may publish in the future.

Co-authorship network of co-authors of William Chalupa

This figure shows the co-authorship network connecting the top 25 collaborators of William Chalupa. A scholar is included among the top collaborators of William Chalupa based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with William Chalupa. William Chalupa is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
1.
Chalupa, William & R.C. Boston. (2008). Development of the CNCPS and CPM models: the Sniffen affect.. 15–24. 4 indexed citations
2.
Moate, Peter J., William Chalupa, R.C. Boston, & I.J. Lean. (2008). Milk Fatty Acids II: Prediction of the Production of Individual Fatty Acids in Bovine Milk. Journal of Dairy Science. 91(3). 1175–1188. 32 indexed citations
3.
Chalupa, William, T. P. Lyons, K. A. Jacques, & J. M. Hower. (2007). Precision feeding of nitrogen to lactating dairy cows: a role for Optigen® II.. 134(7-8). 221–226. 3 indexed citations
4.
Block, E., William Chalupa, T.C. Jenkins, et al.. (2007). Calcium salts yield highest digestibility. 1 indexed citations
5.
Moate, Peter J., William Chalupa, R.C. Boston, & I.J. Lean. (2007). Milk Fatty Acids. I. Variation in the Concentration of Individual Fatty Acids in Bovine Milk. Journal of Dairy Science. 90(10). 4730–4739. 90 indexed citations
6.
Watanabe, Kazumasa, P.H. Robinson, William Chalupa, et al.. (2006). Effects of fat coated rumen bypass lysine and methionine on performance of dairy cows fed a diet deficient in lysine and methionine. Animal Science Journal. 77(5). 495–502. 17 indexed citations
7.
Block, E., et al.. (2005). Calcium salts are highly digestible. 8 indexed citations
8.
Chalupa, William, et al.. (2000). Balancing Rations for Milk Components. Asian-Australasian Journal of Animal Sciences. 12. 27–396. 1 indexed citations
9.
Xu, Shuxiang, J.H. Harrison, William Chalupa, et al.. (1998). The Effect of Ruminal Bypass Lysine and Methionine on Milk Yield and Composition of Lactating Cows. Journal of Dairy Science. 81(4). 1062–1077. 88 indexed citations
10.
Robinson, P.H., A. H. Fredeen, William Chalupa, et al.. (1995). Ruminally Protected Lysine and Methionine for Lactating Dairy Cows Fed a Diet Designed to Meet Requirements for Microbial and Postruminal Protein. Journal of Dairy Science. 78(3). 582–594. 30 indexed citations
11.
Chalupa, William, C.J. Sniffen, P. C. Garnsworthy, & Daniel J. Cole. (1994). Carbohydrate, protein and amino acid nutrition of lactating dairy cattle.. 265–275. 21 indexed citations
12.
Chalupa, William & C.J. Sniffen. (1991). Protein and Amino Acid Nutrition of Lactating Dairy Cattle. Veterinary Clinics of North America Food Animal Practice. 7(2). 353–372. 23 indexed citations
13.
Blanchard, T.L., James D. Ferguson, L.B. Love, et al.. (1990). Effect of dietary crude-protein type on fertilization and embryo quality in dairy cattle. American Journal of Veterinary Research. 51(6). 905–908. 81 indexed citations
14.
Galligan, David T., et al.. (1990). Milk yield and reproduction of lactating cows supplemented with sustained release bovine somatotropin.. Journal of Dairy Science. 73. 5 indexed citations
15.
Curtis, Carey, William Chalupa, & David T. Galligan. (1990). Meta-analysis of production response to somatotropin from four experiments.. Journal of Dairy Science. 73.
16.
Chalupa, William & James D. Ferguson. (1990). Immediate and residual responses of lactating cows on commercial dairies to calcium salts of long chain fatty acids.. Journal of Dairy Science. 73. 6 indexed citations
17.
Chalupa, William & David T. Galligan. (1989). Nutritional Implications of Somatotropin for Lactating Cows. Journal of Dairy Science. 72(10). 2510–2524. 63 indexed citations
18.
Chalupa, William. (1980). Methods for estimating protein requirements and feed protein values for ruminants.. 52(26). 18–20. 13 indexed citations
19.
Chalupa, William. (1972). Metabolic aspects of nonprotein nitrogen utilization in ruminant animals.. PubMed. 31(3). 1152–64. 43 indexed citations
20.
Chalupa, William, et al.. (1964). Influence of Ethanol on Rumen Fermentation and Nitrogen Metabolism1. Journal of Animal Science. 23(3). 802–807. 28 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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