J.N. Spain

2.0k total citations
38 papers, 1.5k citations indexed

About

J.N. Spain is a scholar working on Agronomy and Crop Science, Genetics and Small Animals. According to data from OpenAlex, J.N. Spain has authored 38 papers receiving a total of 1.5k indexed citations (citations by other indexed papers that have themselves been cited), including 24 papers in Agronomy and Crop Science, 12 papers in Genetics and 9 papers in Small Animals. Recurrent topics in J.N. Spain's work include Ruminant Nutrition and Digestive Physiology (15 papers), Genetic and phenotypic traits in livestock (12 papers) and Reproductive Physiology in Livestock (12 papers). J.N. Spain is often cited by papers focused on Ruminant Nutrition and Digestive Physiology (15 papers), Genetic and phenotypic traits in livestock (12 papers) and Reproductive Physiology in Livestock (12 papers). J.N. Spain collaborates with scholars based in United States, China and Canada. J.N. Spain's co-authors include Donald E. Spiers, J. Sampson, Timothy J. Hackmann, John R. Middleton, M.C. Lucy, Mark R. Ellersieck, Robert P. Rhoads, D. H. Keisler, Barry J. Steevens and Munashe Chigerwe and has published in prestigious journals such as Journal of Dairy Science, Journal of Animal Science and Journal of the American Veterinary Medical Association.

In The Last Decade

J.N. Spain

35 papers receiving 1.4k citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
J.N. Spain United States 22 862 621 388 387 140 38 1.5k
C. R. Krehbiel United States 28 1.3k 1.5× 766 1.2× 435 1.1× 563 1.5× 106 0.8× 72 2.0k
C. McManus Brazil 24 594 0.7× 863 1.4× 385 1.0× 695 1.8× 114 0.8× 135 1.9k
D. R. Gill United States 23 1.2k 1.3× 1.3k 2.1× 415 1.1× 695 1.8× 124 0.9× 59 2.2k
Stefano Biffani Italy 19 592 0.7× 702 1.1× 230 0.6× 789 2.0× 153 1.1× 107 1.5k
Glenn C Duff United States 25 1.4k 1.6× 1.2k 1.9× 543 1.4× 372 1.0× 170 1.2× 112 2.6k
C.T. Kadzere South Africa 11 445 0.5× 1.1k 1.8× 359 0.9× 271 0.7× 193 1.4× 25 1.6k
D.V. Armstrong United States 16 1.0k 1.2× 1.3k 2.1× 622 1.6× 567 1.5× 86 0.6× 45 2.0k
R.I. Cue Canada 28 1.2k 1.3× 606 1.0× 488 1.3× 1.0k 2.7× 126 0.9× 95 2.2k
C.D. Dechow United States 25 1.2k 1.4× 585 0.9× 465 1.2× 1.2k 3.0× 134 1.0× 75 1.9k
Robert Brandt United States 23 1.1k 1.3× 497 0.8× 156 0.4× 513 1.3× 88 0.6× 79 1.6k

Countries citing papers authored by J.N. Spain

Since Specialization
Citations

This map shows the geographic impact of J.N. Spain'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 J.N. Spain with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites J.N. Spain more than expected).

Fields of papers citing papers by J.N. Spain

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by J.N. Spain. 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 J.N. Spain. The network helps show where J.N. Spain may publish in the future.

Co-authorship network of co-authors of J.N. Spain

This figure shows the co-authorship network connecting the top 25 collaborators of J.N. Spain. A scholar is included among the top collaborators of J.N. Spain 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 J.N. Spain. J.N. Spain 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.
Adkins, Pamela R. F., Simon Dufour, J.N. Spain, et al.. (2018). Molecular characterization of non-aureus Staphylococcus spp. from heifer intramammary infections and body sites. Journal of Dairy Science. 101(6). 5388–5403. 36 indexed citations
2.
Adkins, Pamela R. F., Simon Dufour, J.N. Spain, et al.. (2018). Cross-sectional study to identify staphylococcal species isolated from teat and inguinal skin of different-aged dairy heifers. Journal of Dairy Science. 101(4). 3213–3225. 26 indexed citations
3.
Middleton, John R., et al.. (2013). Subclinical hypocalcemia, plasma biochemical parameters, lipid metabolism, postpartum disease, and fertility in postparturient dairy cows. Journal of Dairy Science. 96(11). 7001–7013. 104 indexed citations
4.
Garverick, H.A., Melissa Harris, J. Sampson, et al.. (2012). Concentrations of nonesterified fatty acids and glucose in blood of periparturient dairy cows are indicative of pregnancy success at first insemination. Journal of Dairy Science. 96(1). 181–188. 106 indexed citations
5.
Hackmann, Timothy J., J. Sampson, & J.N. Spain. (2010). Variability in in situ ruminal degradation parameters causes imprecision in estimated ruminal digestibility. Journal of Dairy Science. 93(3). 1074–1085. 6 indexed citations
6.
Hackmann, Timothy J. & J.N. Spain. (2010). Invited review: Ruminant ecology and evolution: Perspectives useful to ruminant livestock research and production. Journal of Dairy Science. 93(4). 1320–1334. 105 indexed citations
7.
Rottinghaus, George E., Julie Porter, M. S. Kerley, et al.. (2009). Effect of Fumonisin on Growth of Ruminal Bacteria in Batch Culture. Thammasat International Journal of Science and Technology. 14(2). 13–21. 1 indexed citations
8.
Sampson, J., et al.. (2009). Efficacy of Solis, NovasilPlus, and MTB-100 to reduce aflatoxin M1 levels in milk of early to mid lactation dairy cows fed aflatoxin B1. Journal of Dairy Science. 92(8). 3959–3963. 86 indexed citations
9.
Hackmann, Timothy J. & J.N. Spain. (2009). A mechanistic model for predicting intake of forage diets by ruminants1. Journal of Animal Science. 88(3). 1108–1124. 5 indexed citations
10.
Chigerwe, Munashe, Jeff W. Tyler, John R. Middleton, et al.. (2008). Comparison of four methods to assess colostral IgG concentration in dairy cows. Journal of the American Veterinary Medical Association. 233(5). 761–766. 70 indexed citations
11.
Chigerwe, Munashe, Jeff W. Tyler, Loren G. Schultz, et al.. (2008). Effect of colostrum administration by use of oroesophageal intubation on serum IgG concentrations in Holstein bull calves. American Journal of Veterinary Research. 69(9). 1158–1163. 73 indexed citations
12.
Ellersieck, Mark R., et al.. (1999). Effect of Fibrous By-Products on Production and Ruminal Fermentation in Lactating Dairy Cows. Journal of Dairy Science. 82(12). 2709–2715. 21 indexed citations
13.
Spain, J.N., et al.. (1999). Results of a Nationwide Survey to Determine Feedstuffs Fed to Lactating Dairy Cows. Journal of Dairy Science. 82(2). 445–451. 37 indexed citations
14.
Bateman, H.G., J.N. Spain, M. S. Kerley, R.L. Belyea, & R.T. Marshall. (1999). Evaluation of Ruminally Protected Methionine and Lysine or Blood Meal and Fish Meal as Protein Sources for Lactating Holsteins,. Journal of Dairy Science. 82(10). 2115–2120. 16 indexed citations
15.
Spain, J.N., et al.. (1998). Effects of Controlled Heat Stress on Ovarian Function of Dairy Cattle. 1. Lactating Cows. Journal of Dairy Science. 81(8). 2124–2131. 214 indexed citations
16.
Spain, J.N., et al.. (1997). Supplementation of Nicotinic Acid for Lactating Holstein Cows Under Heat Stress Conditions. Journal of Dairy Science. 80(6). 1200–1206. 65 indexed citations
17.
Spain, J.N.. (1996). Optimal body condition score at calving for production and health.. 8. 11–21. 2 indexed citations
18.
Bateman, H.G., J.N. Spain, & Mark R. Ellersieck. (1996). Influence of By-Product Feeds and Tallow on Lactation Performance of Holstein Cows During Two Seasons. Journal of Dairy Science. 79(1). 114–120. 19 indexed citations
19.
Spain, J.N.. (1993). Zinc proteinates - their role in the defence against mastitis infection. 13(7). 31–33. 1 indexed citations
20.
Spain, J.N., Bruce A. Watkins, & C.E. Polan. (1990). Effects of ruminal or duodenal fish oil infusion on milk production, milk composition, ruminal VFA, and fatty acid composition of duodenal digesta, plasma, and milk.. Journal of Dairy Science. 73. 3 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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