W.J. Koops

583 total citations
19 papers, 458 citations indexed

About

W.J. Koops is a scholar working on Genetics, Agronomy and Crop Science and Animal Science and Zoology. According to data from OpenAlex, W.J. Koops has authored 19 papers receiving a total of 458 indexed citations (citations by other indexed papers that have themselves been cited), including 10 papers in Genetics, 9 papers in Agronomy and Crop Science and 7 papers in Animal Science and Zoology. Recurrent topics in W.J. Koops's work include Genetic and phenotypic traits in livestock (10 papers), Reproductive Physiology in Livestock (6 papers) and Animal Nutrition and Physiology (5 papers). W.J. Koops is often cited by papers focused on Genetic and phenotypic traits in livestock (10 papers), Reproductive Physiology in Livestock (6 papers) and Animal Nutrition and Physiology (5 papers). W.J. Koops collaborates with scholars based in Netherlands, United States and Denmark. W.J. Koops's co-authors include J.A.M. van Arendonk, Mario Herrero, Bernardo Vargas‐Leitón, R.P. Kwakkel, B.J. Ducro, E. Kanis, M.A.M. Machiels, H. Hogendoorn, A. Kamalzadeh and J. van Bruchem and has published in prestigious journals such as Journal of Dairy Science, Aquaculture and Journal of Animal Science.

In The Last Decade

W.J. Koops

17 papers receiving 387 citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
W.J. Koops Netherlands	10	214	172	153	104	54	19	458
H. Skjervold Norway	11	248 1.2×	98 0.6×	101 0.7×	101 1.0×	60 1.1×	27	457
Sarah J. Pain New Zealand	12	165 0.8×	104 0.6×	298 1.9×	106 1.0×	24 0.4×	42	591
E. C. Prigge United States	17	212 1.0×	130 0.8×	522 3.4×	34 0.3×	68 1.3×	40	663
T. Eriksson Sweden	13	80 0.4×	66 0.4×	171 1.1×	47 0.5×	133 2.5×	32	391
I.L. Mao United States	18	1.0k 4.7×	348 2.0×	765 5.0×	46 0.4×	37 0.7×	49	1.2k
Adriano Carvalho Costa Brazil	11	34 0.2×	57 0.3×	51 0.3×	165 1.6×	99 1.8×	52	328
D. M. B. Chestnutt Iran	12	152 0.7×	103 0.6×	347 2.3×	5 0.0×	18 0.3×	51	459
Larry W. Varner United States	13	88 0.4×	59 0.3×	151 1.0×	13 0.1×	56 1.0×	28	370
A. Hidas Hungary	11	262 1.2×	112 0.7×	14 0.1×	37 0.4×	45 0.8×	23	419
Z. Holzer Israel	16	203 0.9×	367 2.1×	453 3.0×	4 0.0×	35 0.6×	69	743

Countries citing papers authored by W.J. Koops

Since Specialization

Citations

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

Fields of papers citing papers by W.J. Koops

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of W.J. Koops

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

All Works

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19 of 19 papers shown

Martinez, M. L., et al.. (2008). Novas funções para estimar a produção de leite, em 305 dias de lactação, de vacas da raça Gir. Revista Brasileira de Zootecnia. 37(7). 1222–1229. 10 indexed citations

Koops, W.J., et al.. (2004). Introduction and Development of New Production Systems with Non-Traditional Animal Species. Outlook on Agriculture. 33(2). 113–123. 1 indexed citations

Phung, Le Dinh & W.J. Koops. (2003). The Impact of Crossbred Cattle (Red Sindhi×Yellow Local) on Smallholder Households in the Mountainous and Lowland Zones of Quang Ngai, Vietnam. Asian-Australasian Journal of Animal Sciences. 16(9). 1390–1396. 3 indexed citations

Koops, W.J., et al.. (2002). ANALYSIS OF Iguana iguana FARMING SYSTEMS IN NICARAGUA, COSTA RICA AND PANAMA. 27(11). 599–606. 6 indexed citations

Koops, W.J., et al.. (2002). Effect of Economic Crisis on Sustainability Aspects of Holstein Dairy Systems in Brazil. Outlook on Agriculture. 31(2). 121–128. 1 indexed citations

Cornelissen, A.M.G., Jan van den Berg, W.J. Koops, & Michael Grossman. (2000). Assessment of Sustainable Development. RePub (Erasmus University Rotterdam). 3 indexed citations

Vargas‐Leitón, Bernardo, W.J. Koops, Mario Herrero, & J.A.M. van Arendonk. (2000). Modeling Extended Lactations of Dairy Cows. Journal of Dairy Science. 83(6). 1371–1380. 82 indexed citations

Kamalzadeh, A., et al.. (1998). Effect of duration of feed quality restriction on body dimensions in lambs.. Journal of Animal Science. 76(3). 735–735. 17 indexed citations

Kamalzadeh, A., W.J. Koops, & J. van Bruchem. (1998). Feed quality restriction and compensatory growth in growing sheep: Modelling changes in body dimensions. Livestock Production Science. 53(1). 57–67. 25 indexed citations

10.

Kwakkel, R.P., et al.. (1997). Pubertal growth spurt in layer pullets predicts point of lay.. Socio-Environmental Systems Modeling. 13(6). 39–42. 3 indexed citations

11.

Kwakkel, R.P., et al.. (1995). Onset of Lay Related to Multiphasic Growth and Body Composition in White Leghorn Pullets Provided Ad Libitum and Restricted Diets. Poultry Science. 74(5). 821–832. 25 indexed citations

12.

Kwakkel, R.P., B.J. Ducro, & W.J. Koops. (1993). Multiphasic Analysis of Growth of the Body and its Chemical Components in White Leghorn Pullets. Poultry Science. 72(8). 1421–1432. 37 indexed citations

13.

Koops, W.J., et al.. (1993). Modelling foetal growth in pigs. Animal Production. 57(3). 447–453. 3 indexed citations

14.

Kanis, E. & W.J. Koops. (1990). Daily gain, food intake and food efficiency in pigs during the growing period. Animal Science. 50(2). 353–364. 35 indexed citations

15.

Pieterse, M.C., et al.. (1987). Oestrous behaviour of Dutch Friesian heifers under subtropical conditions in Tunesia. International Journal of Biometeorology. 31(4). 269–283. 1 indexed citations

16.

Koops, W.J.. (1986). Multiphasic growth curve analysis.. PubMed. 50(2). 169–77. 65 indexed citations

17.

Korver, S., J.A.M. van Arendonk, & W.J. Koops. (1985). A function for live-weight change between two calvings in dairy cattle. Animal Science. 40(2). 233–241. 37 indexed citations

18.

Vecht, U., et al.. (1985). Effect of Bull Selection for Somatic Cell Count in First Lactation on Cell Counts and Pathogens in Later Lactations. Journal of Dairy Science. 68(11). 2995–3003. 9 indexed citations

19.

Hogendoorn, H., et al.. (1983). Growth and production of the African catfish, Clarias lazera (C. & V.). Aquaculture. 34(3-4). 265–285. 95 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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