G.A. Verkerk

3.3k total citations
48 papers, 2.6k citations indexed

About

G.A. Verkerk is a scholar working on Agronomy and Crop Science, Animal Science and Zoology and Small Animals. According to data from OpenAlex, G.A. Verkerk has authored 48 papers receiving a total of 2.6k indexed citations (citations by other indexed papers that have themselves been cited), including 30 papers in Agronomy and Crop Science, 19 papers in Animal Science and Zoology and 18 papers in Small Animals. Recurrent topics in G.A. Verkerk's work include Reproductive Physiology in Livestock (27 papers), Effects of Environmental Stressors on Livestock (19 papers) and Animal Behavior and Welfare Studies (18 papers). G.A. Verkerk is often cited by papers focused on Reproductive Physiology in Livestock (27 papers), Effects of Environmental Stressors on Livestock (19 papers) and Animal Behavior and Welfare Studies (18 papers). G.A. Verkerk collaborates with scholars based in New Zealand, United States and Canada. G.A. Verkerk's co-authors include James R. Webster, Lindsay R. Matthews, M. Stewart, A. Rogers, P.E. Kendall, C. J. Morrow, Cassandra B. Tucker, Macmillan Kl, Jim Webster and A. L. Schaefer and has published in prestigious journals such as Scientific Reports, Journal of Dairy Science and Journal of Animal Science.

In The Last Decade

G.A. Verkerk

47 papers receiving 2.5k citations

Peers

Countries citing papers authored by G.A. Verkerk

Since Specialization

Citations

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

Fields of papers citing papers by G.A. Verkerk

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by G.A. Verkerk. 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 G.A. Verkerk. The network helps show where G.A. Verkerk may publish in the future.

Co-authorship network of co-authors of G.A. Verkerk

This figure shows the co-authorship network connecting the top 25 collaborators of G.A. Verkerk. A scholar is included among the top collaborators of G.A. Verkerk 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 G.A. Verkerk. G.A. Verkerk is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

#	Work	Indexed citations
1	Phenotypic population screen identifies a new mutation in bovine DGAT1 responsible for unsaturated milk fat 2015 ·Scientific Reports ·Klaus Lehnert, Hamish E. Ward, Sarah Berry, (unknown), (unknown), (unknown), (unknown), B.L. Harris, Christine A. Ford, Sharon R. Browning, Pisana Rawson, G.A. Verkerk, (unknown), Linda F. Adams, Stephen R. Davis, T. William Jordan, Alastair MacGibbon, Richard Spelman, Russell G. Snell	16
2	Amino acid concentrations in uterine fluid during early pregnancy differ in fertile and subfertile dairy cow strains 2014 ·Journal of Dairy Science ·S. Meier, Murray D. Mitchell, Caroline Walker, J.R. Roche, G.A. Verkerk	16
3	Body condition score at calving affects systemic and hepatic transcriptome indicators of inflammation and nutrient metabolism in grazing dairy cows 2014 ·Journal of Dairy Science ·Haji Akbar, T Grala, M. Vailati-Riboni, F.C. Cardoso, G.A. Verkerk, (unknown), K.A. Macdonald, James R. Webster, Karin E. Schütz, S. Meier, Lisa Matthews, J.R. Roche, Juan J. Loor	82
4	Calving body condition score affects indicators of health in grazing dairy cows 2013 ·Journal of Dairy Science ·J.R. Roche, K.A. Macdonald, Karin E. Schütz, Lisa Matthews, G.A. Verkerk, S. Meier, Juan J. Loor, A. Rogers, (unknown), (unknown), (unknown), James R. Webster	84
5	Behavioral and physiological effects of a short-term feed restriction in lactating dairy cattle with different body condition scores at calving 2013 ·Journal of Dairy Science ·Karin E. Schütz, N. R. Cox, K.A. Macdonald, J.R. Roche, G.A. Verkerk, A. Rogers, Cassandra B. Tucker, Lisa Matthews, S. Meier, James R. Webster	28
6	Applying additive logistic regression to data derived from sensors monitoring behavioral and physiological characteristics of dairy cows to detect lameness 2013 ·Journal of Dairy Science ·C. Kamphuis, Eibe Frank, (unknown), G.A. Verkerk, J. Jago	28
7	Effects of divergent Holstein-Friesian strain and diet on diurnal patterns of plasma metabolites and hormones 2010 ·Journal of Dairy Research ·S. Meier, E.S. Kolver, G.A. Verkerk, J.R. Roche	9
8	Technical note: Effects of an epinephrine infusion on eye temperature and heart rate variability in bull calves 2010 ·Journal of Dairy Science ·M. Stewart, James R. Webster, Kevin J. Stafford, A. L. Schaefer, G.A. Verkerk	46
9	Comparing subpopulations of plasma progesterone using cluster analyses 2009 ·Journal of Dairy Science ·S. Meier, J.R. Roche, E.S. Kolver, G.A. Verkerk, R.C. Boston	11
10	Effects of local anesthetic and a nonsteroidal antiinflammatory drug on pain responses of dairy calves to hot-iron dehorning 2009 ·Journal of Dairy Science ·M. Stewart, J. M. Stookey, KJ Stafford, Cassandra B. Tucker, A. Rogers, Suzanne Dowling, G.A. Verkerk, A. L. Schaefer, James R. Webster	118
11	Effects of shade provision on the behaviour, body temperature and milk production of grazing dairy cows during a New Zealand summer 2008 ·New Zealand Journal of Agricultural Research ·Andrew Fisher, (unknown), (unknown), G.A. Verkerk, Lindsay R. Matthews	51
12	Non-invasive measurement of stress in dairy cows using infrared thermography 2007 ·Physiology & Behavior ·M. Stewart, Jim Webster, G.A. Verkerk, A. L. Schaefer, J. Colyn, KJ Stafford	223
13	A Comparison of Three Strains of Holstein-Friesian Cows Grazed on Pasture: Growth, Development, and Puberty 2007 ·Journal of Dairy Science ·K.A. Macdonald, Lars R. McNaughton, G.A. Verkerk, J.W. Penno, L.J. Burton, D.P. Berry, (unknown), J.A.S. Lancaster, C. W. Holmes	41
14	Precalving Effects on Metabolic Responses and Postpartum Anestrus in Grazing Primiparous Dairy Cows 2006 ·Journal of Dairy Science ·L.M. Chagas, F.M. Rhodes, Dominique Blache, (unknown), K.A. Macdonald, G.A. Verkerk	28
15	Invited Review: Treatment of Cows with an Extended Postpartum Anestrous Interval 2003 ·Journal of Dairy Science ·F.M. Rhodes, S McDougall, Christopher R. Burke, G.A. Verkerk, Macmillan Kl	221
16	Fecal Glucocorticoid Metabolites as a Measure of Adrenal Activity in Dairy Cattle 2002 ·General and Comparative Endocrinology ·C. J. Morrow, E.S. Kolver, G.A. Verkerk, Lindsay R. Matthews	140
17	Relationships between, milk production, nutrition and reproduction in "benchmark" herds 1 2001 ·Proceedings of the New Zealand Society of Animal Production ·J. F. Smith, G.A. Verkerk, Barbara A. Clark, (unknown), D. M. Duganzich	1
18	Progesterone and follicular changes in postpartum noncyclic dairy cows after treatment with progesterone and estradiol or with progesterone, GnRH, PGF2α, and estradiol 2000 ·Theriogenology ·Z.Z. Xu, G.A. Verkerk, John F. Mee, (unknown), Barbara A. Clark, Christopher R. Burke, L.J. Burton	22
19	Angus selection herd reproductive data: A genetic model for dairy cattle? 1999 ·Proceedings of the New Zealand Society of Animal Production ·C. A. Morris, G.A. Verkerk, J. A. Wilson	4
20	Adrenocortical responses to an adrenocorticotropic hormone in bulls and steers. 1997 ·Journal of Animal Science ·G.A. Verkerk, Macmillan Kl	20

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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