E.G.M. Bergfeld

1.2k total citations
25 papers, 961 citations indexed

About

E.G.M. Bergfeld is a scholar working on Agronomy and Crop Science, Genetics and Small Animals. According to data from OpenAlex, E.G.M. Bergfeld has authored 25 papers receiving a total of 961 indexed citations (citations by other indexed papers that have themselves been cited), including 23 papers in Agronomy and Crop Science, 18 papers in Genetics and 6 papers in Small Animals. Recurrent topics in E.G.M. Bergfeld's work include Reproductive Physiology in Livestock (22 papers), Genetic and phenotypic traits in livestock (18 papers) and Ruminant Nutrition and Digestive Physiology (7 papers). E.G.M. Bergfeld is often cited by papers focused on Reproductive Physiology in Livestock (22 papers), Genetic and phenotypic traits in livestock (18 papers) and Ruminant Nutrition and Digestive Physiology (7 papers). E.G.M. Bergfeld collaborates with scholars based in United States, China and Australia. E.G.M. Bergfeld's co-authors include J. E. Kinder, M.E. Wehrman, F. N. Kojima, K. E. Peters, Andrea S. Cupp, Karol E Fike, V. Mariscal, Tania Sánchez, R. J. Kittok and M. Garcia-Winder and has published in prestigious journals such as Biology of Reproduction, Journal of Animal Science and Theriogenology.

In The Last Decade

E.G.M. Bergfeld

25 papers receiving 895 citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
E.G.M. Bergfeld United States	17	859	677	282	191	125	25	961
B. J. McLeod United Kingdom	14	742 0.9×	369 0.5×	220 0.8×	154 0.8×	112 0.9×	30	870
M. Garcia-Winder United States	16	775 0.9×	560 0.8×	141 0.5×	270 1.4×	62 0.5×	26	848
F.M. Rhodes Australia	15	991 1.2×	824 1.2×	234 0.8×	231 1.2×	60 0.5×	26	1.1k
M.E. Wehrman United States	21	1.2k 1.4×	918 1.4×	379 1.3×	263 1.4×	151 1.2×	34	1.3k
O.J. Ginther United States	16	805 0.9×	413 0.6×	202 0.7×	122 0.6×	93 0.7×	40	893
L. P. Cahill Australia	18	875 1.0×	556 0.8×	623 2.2×	118 0.6×	234 1.9×	36	1.1k
R. Rajamahendran Canada	21	1.1k 1.3×	870 1.3×	574 2.0×	267 1.4×	325 2.6×	90	1.5k
M. L. Madan India	17	580 0.7×	478 0.7×	439 1.6×	364 1.9×	261 2.1×	75	1.1k
C.J. Bierschwal United States	18	857 1.0×	453 0.7×	180 0.6×	165 0.9×	111 0.9×	38	972
I.A. Jeffcoate United Kingdom	14	424 0.5×	283 0.4×	166 0.6×	153 0.8×	134 1.1×	36	666

Countries citing papers authored by E.G.M. Bergfeld

Since Specialization

Citations

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

Fields of papers citing papers by E.G.M. Bergfeld

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by E.G.M. Bergfeld. 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 E.G.M. Bergfeld. The network helps show where E.G.M. Bergfeld may publish in the future.

Co-authorship network of co-authors of E.G.M. Bergfeld

This figure shows the co-authorship network connecting the top 25 collaborators of E.G.M. Bergfeld. A scholar is included among the top collaborators of E.G.M. Bergfeld 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 E.G.M. Bergfeld. E.G.M. Bergfeld 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

Fike, Karol E, F. N. Kojima, B.R. Lindsey, et al.. (2004). Regulation of frequency of luteinizing hormone pulses by magnitude of acute change in circulating concentration of progesterone of female cattle. Animal Reproduction Science. 84(3-4). 279–291. 9 indexed citations

Kojima, F. N., E.G.M. Bergfeld, M.E. Wehrman, et al.. (2003). Frequency of luteinizing hormone pulses in cattle influences duration of persistence of dominant ovarian follicles, follicular fluid concentrations of steroids, and activity of insulin-like growth factor binding proteins. Animal Reproduction Science. 77(3-4). 187–211. 29 indexed citations

Fike, Karol E, M.E. Wehrman, B.R. Lindsey, et al.. (1999). Estrus synchronization of beef cattle with a combination of melengestrol acetate and an injection of progesterone and 17beta-estradiol.. Journal of Animal Science. 77(3). 715–715. 13 indexed citations

Mariscal, D., E.G.M. Bergfeld, Andrea S. Cupp, et al.. (1998). Concentrations of gonadotropins, estradiol and progesterone in sows selected on an index of ovulation rate and embryo survival. Animal Reproduction Science. 54(1). 31–43. 20 indexed citations

Maclellan, L.J., E.G.M. Bergfeld, C.R. Earl, et al.. (1997). Influence of the Luteinizing Hormone-Releasing Hormone Agonist, Deslorelin, on Patterns of Estradiol-17β and Luteinizing Hormone Secretion, Ovarian Follicular Responses to Superstimulation with Follicle-Stimulating Hormone, and Recovery and in Vitro Development of Oocytes in Heifer Calves1. Biology of Reproduction. 56(4). 878–884. 31 indexed citations

Fike, Karol E, M.E. Wehrman, E.G.M. Bergfeld, F. N. Kojima, & J. E. Kinder. (1997). Prolonged increased concentrations of 17beta-estradiol associated with development of persistent ovarian follicles do not influence conception rates in beef cattle.. Journal of Animal Science. 75(5). 1363–1363. 7 indexed citations

Fike, Karol E, E.G.M. Bergfeld, Andrea S. Cupp, et al.. (1997). Gonadotropin secretion and development of ovarian follicles during oestrous cycles in heifers treated with luteinizing hormone releasing hormone antagonist. Animal Reproduction Science. 49(2-3). 83–100. 24 indexed citations

Kinder, J. E., F. N. Kojima, E.G.M. Bergfeld, M.E. Wehrman, & Karol E Fike. (1996). Progestin and estrogen regulation of pulsatile LH release and development of persistent ovarian follicles in cattle.. Journal of Animal Science. 74(6). 1424–1424. 163 indexed citations

Wehrman, M.E., Karol E Fike, F. N. Kojima, et al.. (1996). Development of persistent ovarian follicles during synchronization of estrus influences the superovulatory response to FSH treatment in cattle. Theriogenology. 45(3). 593–610. 16 indexed citations

10.

Bergfeld, E.G.M., F. N. Kojima, Andrea S. Cupp, et al.. (1996). Changing Dose of Progesterone Results in Sudden Changes in Frequency of Luteinizing Hormone Pulses and Secretion of 17β-Estradiol in Bovine Females1. Biology of Reproduction. 54(3). 546–553. 115 indexed citations

11.

Bergfeld, E.G.M.. (1996). Pituitary function, ovarian follicular growth, and plasma concentrations of 17 beta-estradiol and progesterone in prepubertal heifers during and after treatment with the luteinizing hormone- releasing hormone agonist deslorelin. Biology of Reproduction. 54(4). 776–782. 37 indexed citations

12.

Bergfeld, E.G.M.. (1996). Continued desensitization of the pituitary gland in young bulls after treatment with the luteinizing hormone-releasing hormone agonist deslorelin. Biology of Reproduction. 54(4). 769–775. 21 indexed citations

13.

Kojima, F. N., J. R. Chenault, M.E. Wehrman, et al.. (1995). Melengestrol Acetate at Greater Doses than Typically Used for Estrous Synchrony in Bovine Females Does not Mimic Endogenous Progesterone in Regulation of Secretion Of Luteinizing Hormone and 17β-Estradiol1. Biology of Reproduction. 52(2). 455–463. 44 indexed citations

14.

Sánchez, Tania, M.E. Wehrman, F. N. Kojima, et al.. (1995). Dosage of the Synthetic Progestin, Norgestomet, Influences Luteinizing Hormone Pulse Frequency and Endogenous Secretion of 17βEestradiol in Heifers1. Biology of Reproduction. 52(2). 464–469. 55 indexed citations

15.

Kinder, J. E., E.G.M. Bergfeld, M.E. Wehrman, K. E. Peters, & F. N. Kojima. (1995). Endocrine basis for puberty in heifers and ewes.. PubMed. 49. 393–407. 100 indexed citations

16.

Bergfeld, E.G.M., F. N. Kojima, M.E. Wehrman, et al.. (1995). Frequency of luteinizing hormone pulses and circulating 17β-oestradiol concentration in cows is related to concentration of progesterone in circulation when the progesterone comes from either an endogenous or exogenous source. Animal Reproduction Science. 37(3-4). 257–265. 35 indexed citations

17.

Bergfeld, E.G.M., F. N. Kojima, Andrea S. Cupp, et al.. (1994). Ovarian Follicular Development in Prepubertal Heifers is Influenced by Level of Dietary Energy Intake1. Biology of Reproduction. 51(5). 1051–1057. 66 indexed citations

18.

Peters, K. E., E.G.M. Bergfeld, Andrea S. Cupp, et al.. (1994). Luteinizing Hormone has a Role in Development of Fully Functional Corpora Lutea (CL) But is not Required to Maintain CL Function in Heifers1. Biology of Reproduction. 51(6). 1248–1254. 70 indexed citations

19.

Sánchez, Tania, M.E. Wehrman, G. E. Moss, et al.. (1994). Differential Regulation of Gonadotropin Synthesis and Release in Ovariectomized Ewes after Treatment with a Luteinizing Hormone-Releasing Hormone Antagonist1. Biology of Reproduction. 51(4). 755–759. 10 indexed citations

20.

Sánchez, Tania, M.E. Wehrman, E.G.M. Bergfeld, et al.. (1993). Pregnancy Rate is Greater When the Corpus Luteum is Present during the Period of Progestin Treatment to Synchronize Time of Estrus in Cows and Heifers1. Biology of Reproduction. 49(5). 1102–1107. 44 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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