J. B. van Wyk

1.5k citations

64 papers · 1.2k indexed · h-index 18

Agronomy and Crop Science top 1%
- Reproductive Physiology in Livestock 17
- Ruminant Nutrition and Digestive Physiology 13
- Livestock Management and Performance Improvement 6
Animal Science and Zoology top 1%
- Animal Nutrition and Physiology 5
Genetics top 2%
- Genetic and phenotypic traits in livestock 55
- Genetic Mapping and Diversity in Plants and Animals 16
Small Animals top 2%
- Animal Behavior and Welfare Studies 7
Management, Monitoring, Policy and Law top 10%
Plant Science
- Genetics and Plant Breeding 7

Co-authors: G.J. Erasmus J.J. Olivier S.W.P. Cloete M.A. Snyman F.W.C. Neser M.D. Fair M. M. Scholtz P.E. Strydom
Cited by: Agronomy and Crop Science Animal Science and Zoology Genetics
Journals: Meat Science (1 paper)Applied Animal Behaviour Science (1 paper)Small Ruminant Research (5 papers)
Partner nations: South Africa Australia Ireland

In The Last Decade

J. B. van Wyk

62 papers receiving 1.1k citations

Peers

Countries citing papers authored by J. B. van Wyk

Since Specialization

Citations

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

Fields of papers citing papers by J. B. van Wyk

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by J. B. van Wyk. 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. B. van Wyk. The network helps show where J. B. van Wyk may publish in the future.

Co-authorship network

The 25 scholars most cited alongside J. B. van Wyk, linked wherever they have co-authored with each other. Click a name or a connecting line to browse the papers they share.

Border = papers with J. B. van Wyk Line = papers co-authored together J. B. van Wyk links everyone, so they are left out of the graph.

All Works

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20 of 20 papers shown

#	Work
1	Breed effects and heterosis for weight traits and tick count in a cross between an indigenous fat-tailed and a commercial sheep breed Tropical Animal Health and Production ·S.W.P. Cloete,Ketshephaone Thutwa,A. J. Scholtz,J.J.E. Cloete,K. Dzama,A. Gilmour,J. B. van Wyk	2021	9
2	Genetic variability and relationships in nine South African cattle breeds using microsatellite markers Tropical Animal Health and Production ·Lené Van Der Westhuizen,M. D. MacNeil,M. M. Scholtz,F.W.C. Neser,Mahlako L. Makgahlela,J. B. van Wyk	2019	9
3	Estimation of genetic parameters for functional longevity in the South African Holstein cattle using a piecewise Weibull proportional hazards model Journal of Animal Breeding and Genetics ·Venancio Edward Imbayarwo-Chikosi,Vincent Ducrocq,C.B. Banga,Tinyiko Edward Halimani,J. B. van Wyk,A. Maiwashe,K. Dzama	2017	11
4	Impact of conformation traits on functional longevity in South African Holstein cattle Animal Production Science ·Venancio Edward Imbayarwo-Chikosi,V. Ducrocq,C.B. Banga,Tinyiko Edward Halimani,J. B. van Wyk,A. Maiwashe,K. Dzama	2016	8
5	Pedigree analysis of an ostrich breeding flock South African Journal of Animal Science ·M.D. Fair,J. B. van Wyk,S.W.P. Cloete	2012	8
6	A survey of the prevalence of blowfly strike and the control measures used in the Rûens area of the Western Cape Province of South Africa Journal of the South African Veterinary Association ·A. J. Scholtz,S.W.P. Cloete,E. Du Toit,J. B. van Wyk,T. C. de K. van der Linde	2011	3
7	The assessment of crystals derived from Aloe spp. for potential use as an herbal anthelmintic thereby indirectly controlling blowfly strike South African Journal of Animal Science ·A. J. Scholtz,S.W.P. Cloete,J. B. van Wyk,T. C. de K. van der Linde	2010	0
8	Estimating heritability of subjectively assessed ostrich leather quality traits using threshold models. Anel Engelbrecht,S.W.P. Cloete,K. L. Bunter,J. B. van Wyk	2009	1
9	Genetic parameters and trends for lamb behaviour. S.W.P. Cloete,J. B. van Wyk,A. J. Scholtz,A. R. Gilmour	2006	4
10	Genetic analysis of the Cradock fine wool Merino stud. Proceedings of the 8th World Congress on Genetics Applied to Livestock Production, Belo Horizonte, Minas Gerais, Brazil, 13-18 August, 2006 ·W.J. Olivier,J.J. Olivier,S.W.P. Cloete,J. B. van Wyk	2006	4
11	The ability of Merino ewes and lambs to reunite after separation, as affected by divergent selection for ewe multiple rearing capacity Australian Journal of Experimental Agriculture ·S.W.P. Cloete,A. J. Scholtz,J.J.E. Cloete,J. B. van Wyk	2005	11
12	Genetic and phenotypic trends and parameters in reproduction, greasy fleece weight and liveweight in Merino lines divergently selected for multiple rearing ability Australian Journal of Experimental Agriculture ·S.W.P. Cloete,A. R. Gilmour,J.J. Olivier,J. B. van Wyk	2004	66
13	Genetic parameter estimates for pre-weaning weight traits in Dorper sheep Small Ruminant Research ·F.W.C. Neser,G.J. Erasmus,J. B. van Wyk	2001	92
14	Direct and correlated responses to selection for total weight of lamb weaned in Merino sheep South African Journal of Animal Science ·W.J. Olivier,M.A. Snyman,J.J. Olivier,J. B. van Wyk,G.J. Erasmus	2001	30
15	Characterisation of indigenous African cattle breeds in relation to meat quality traits Meat Science ·P.E. Strydom,R.T. Naudé,Marie F. Smith,M. M. Scholtz,J. B. van Wyk	2000	75
16	Early growth, survival and litter size in Ethiopian Horro sheep South African Journal of Animal Science ·Solomon Abegaz,Dessalegn Obsi Gemeda,J.E.O. Rege,J. B. van Wyk,F.W.C. Neser,G.J. Erasmus	2000	9
17	Responseto selectiono n BLUP of breedingv aluesi n the GrootfonteinM erino stud South African Journal of Animal Science ·J.J. Olivier,G.J. Erasmus,J. B. van Wyk,K Konstantinov	1995	7
18	Non-genetic factors influencing growth and fleece traits in Afrino sheep South African Journal of Animal Science ·MA Snyman,G.J. Erasmus,J. B. van Wyk	1995	17
19	Genetic and environmental trends of early growth traits in the Elsenburg Dormer sheep stud South African Journal of Animal Science ·J. B. van Wyk,G.J. Erasmus,K Konstantinov	1993	53
20	The effects of nutritional and lambing stress on wool fibre and processing characteristics. Wool technology and sheep breeding ·L. Hunter,J. B. van Wyk,P.J. De Wet,P. D. Grobbelaar,P. S. Pretorius,Jonathan Morris,W. Leeuwner	1990	11

About J. B. van Wyk

J. B. van Wyk is a scholar working on Agronomy and Crop Science, Genetics and Animal Science and Zoology, having authored 64 papers that have together received 1.2k indexed citations. Recurring topics across this work include Genetic and phenotypic traits in livestock (55 papers), Reproductive Physiology in Livestock (17 papers), Genetic Mapping and Diversity in Plants and Animals (16 papers), Ruminant Nutrition and Digestive Physiology (13 papers), Animal Behavior and Welfare Studies (7 papers), Genetics and Plant Breeding (7 papers), Livestock Management and Performance Improvement (6 papers) and Animal Nutrition and Physiology (5 papers). The work is most often cited by research in Agronomy and Crop Science (613 citations), Animal Science and Zoology (426 citations) and Genetics (986 citations). J. B. van Wyk has collaborated with scholars based in South Africa, Australia and Ireland. Frequent co-authors include G.J. Erasmus, J.J. Olivier, S.W.P. Cloete, M.A. Snyman, F.W.C. Neser, M.D. Fair, M. M. Scholtz, P.E. Strydom, R.T. Naudé and A. R. Gilmour. Their work appears in journals such as Meat Science, Applied Animal Behaviour Science and Small Ruminant Research.

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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