K.J. O’Farrell

522 citations

20 papers · 400 indexed · h-index 9

Impact in

Agronomy and Crop Science top 2%
- Reproductive Physiology in Livestock
- Ruminant Nutrition and Digestive Physiology
- Animal Disease Management and Epidemiology
Small Animals top 5%
- Animal Behavior and Welfare Studies

Papers in

Agronomy and Crop Science 16
- Reproductive Physiology in Livestock 15
- Ruminant Nutrition and Digestive Physiology 5
Small Animals 5
- Animal Behavior and Welfare Studies 3
- Animal health and immunology 2
- Infectious Diseases and Mycology 1

Co-authors: David P. Ryan S. Snijders Finola C. Leonard Janet M. O'Connell M.G. Diskin J.M. Sreenan H. Yaakub L.D. Dunne
Journals: Animal Reproduction Science (4 papers)Veterinary Record (3 papers)Theriogenology (2 papers)Journal of Animal Science (1 paper)Animal Science (1 paper)
Partner nations: Ireland United Kingdom

In The Last Decade

K.J. O’Farrell

17 papers receiving 345 citations

Peers

Countries citing papers authored by K.J. O’Farrell

Since Specialization

Citations

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

Fields of papers citing papers by K.J. O’Farrell

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by K.J. O’Farrell. 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 K.J. O’Farrell. The network helps show where K.J. O’Farrell may publish in the future.

Co-authorship network

The 24 scholars most cited alongside K.J. O’Farrell, 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 K.J. O’Farrell Line = papers co-authored together K.J. O’Farrell links everyone, so they are left out of the graph.

All Works

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20 of 20 papers shown

#	Work
1	Animal health and disease therapy on organic dairy farms in the Republic of Ireland Veterinary Record ·Khadija Amini, Chango-Ho Lee, K.J. O’Farrell, Michael L. Doherty	2006	5
2	Survey of Johne's disease in imported animals in the Republic of Ireland Veterinary Record ·Alasdair F. O’Doherty, Росица Ангелова, J. Egan, Terry Smith, K.J. O’Farrell	2002	11
3	Genetic merit for milk production and reproductive success in dairy cows Animal Reproduction Science ·S. Snijders, P. Dillon, K.J. O’Farrell, M.G. Diskin, A.R.G. Wylie, Declan OʼCallaghan, M. Rath, M.P. Boland	2001	73
4	The effect of changes in feed intake around the time of insemination on systemic progesterone and embryo development and survival in cattle. BSAP Occasional Publication ·L.D. Dunne, M.G. Diskin, M.P. Boland, K.J. O’Farrell, J.M. Sreenan	2001	5
5	First Service Calving Rates In Irish Dairy Herds: Trends From 1991-1996 BSAP Occasional Publication ·K.J. O’Farrell, S Nesichi	2001	12
6	Relationship between genetic merit, milk production, body condition, blood parameters and reproductive performance of dairy cows BSAP Occasional Publication ·S. Snijders, Jen Persson, K.J. O’Farrell, Rajan Amrelia, D. O’Callaghan, M. Rath, M.P. Boland	2001	3
7	Fluctuations in Energy Intake and Fertility in Cattle. Arrow@dit (Dublin Institute of Technology) ·M.G. Diskin, J.M. Sreenan, L.D. Dunne, K.J. O’Farrell	2001	2
8	Comparison of oestrous synchronization regimens for lactating dairy cows Animal Reproduction Science ·David P. Ryan, Tian Tian, K.J. O’Farrell	1999	33
9	The effect of pre- and post-insemination plane of nutrition on embryo survival in beef heifers Animal Science ·L.D. Dunne, M.G. Diskin, M.P. Boland, K.J. O’Farrell, J.M. Sreenan	1999	55
10	The effect of pre- and post-insemination plane of nutrition on early embryo survival in cattle Proceedings of the British Society of Animal Science ·L.D. Dunne, M.G. Diskin, M.P. Boland, K.J. O’Farrell, J.M. Sreenan	1997	4
11	Effect of overcrowding on claw health in first-calved friesian heifers British Veterinary Journal ·Finola C. Leonard, Janet M. O'Connell, K.J. O’Farrell	1996	84
12	An evaluation of estrus synchronization programs in reproductive management of dairy herds. Journal of Animal Science ·David P. Ryan, S. Snijders, H. Yaakub, K.J. O’Farrell	1995	51
13	Effect of estradiol subsequent to induced luteolysis on development of the ovulatory follicle and interval to estrus and ovulation Theriogenology ·David P. Ryan, S. Snijders, Donna G. Robertson, K.J. O’Farrell	1995	10
14	Endocrine and ovarian responses and pregnancy rates in dairy cows following the administration of a gonadotrophin releasing hormone analog at the time of artificial insemination or at mid-cycle post insemination Animal Reproduction Science ·David P. Ryan, S. Snijders, Timothy P. Condon, Maura Grealy, J.M. Sreenan, K.J. O’Farrell	1994	40
15	Intrauterine transfer of bovine trophoblast vesicles during dioestrus after breeding to increase pregnancy rates in dairy cows Animal Reproduction Science ·David P. Ryan, Nicole González Concha, S. Snijders, K.J. O’Farrell	1994	0
16	Intrauterine transfer of bovine trophoblastic vesicles during dioestrus after breeding to increase pregnancy rates in dairy cows Theriogenology ·David P. Ryan, Nicole González Concha, S. Snijders, K.J. O’Farrell	1994	1
17	Surgical procedure for duodenal cannulation in the adult dairy cow. K.J. O’Farrell, John F. Mee, Jean Murphy, Christopher K. Kramer	1990	1
18	Induced twinning in dairy cows. K.J. O’Farrell, John F. Mee, X.Asatova., Pieter H. Reitsma	1990	0
19	Fertility management in the dairy herd. K.J. O’Farrell	1980	6
20	Some observations on the use of two corticosteroid preparations for the induction of premature calving Veterinary Record ·K.J. O’Farrell, Sharon Yankelson	1974	4

About K.J. O’Farrell

K.J. O’Farrell is a scholar working on Agronomy and Crop Science, Small Animals, Animal Science and Zoology, Genetics and Reproductive Medicine, having authored 20 papers that have together received 400 indexed citations. Recurring topics across this work include Reproductive Physiology in Livestock (15 papers), Genetic and phenotypic traits in livestock (9 papers), Ruminant Nutrition and Digestive Physiology (5 papers), Reproductive Biology and Fertility (3 papers), Effects of Environmental Stressors on Livestock (3 papers), Animal Behavior and Welfare Studies (3 papers), Animal health and immunology (2 papers) and Infectious Diseases and Mycology (1 paper). The work is most often cited by research in Agronomy and Crop Science (320 citations), Small Animals (103 citations), Animal Science and Zoology (128 citations), Genetics (267 citations) and Equine (9 citations). K.J. O’Farrell has collaborated with scholars based in Ireland and United Kingdom. Frequent co-authors include David P. Ryan, S. Snijders, Finola C. Leonard, Janet M. O'Connell, M.G. Diskin, J.M. Sreenan, H. Yaakub, L.D. Dunne, M.P. Boland and M.P. Boland. Their work appears in journals such as Animal Reproduction Science, Veterinary Record, Theriogenology, Journal of Animal Science and Animal Science.

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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