Concepedia
Statistics
Publications
31
Citations
1.4K
H-Index
21
Active since
1987
Affiliations
University College Dublin(Current)
University of Michigan
Teagasc - The Irish Agriculture and Food Development Authority
University of Veterinary Medicine
D. O’Callaghan is an author at University College Dublin specializing in animal sciences, agriculture, and sheep reproduction.
Publications per year
1987–2012
Nutritional effects on ovulation, embryo development and the establishment of pregnancy in ruminants
D. O’Callaghan, M.P. Boland · Animal Science · 1999 · 188 citations
Agriculture, Animal Sciences, Nutritional Sciences +17
Effect of genetic merit, milk yield, body condition and lactation number on in vitro oocyte development in dairy cows
S. Snijders, P. Dillon, D. O’Callaghan et al. · Theriogenology · 2000 · 172 citations
Agriculture, Animal Sciences, Dairy Science +17
Influence of nutrition on the effectiveness of superovulation programmes in ewes: effect on oocyte quality and post-fertilization development
JM Lozano, P. Lonergan, M.P. Boland et al. · Reproduction · 2003 · 110 citations
Agriculture, Animal Sciences, Nutrition +17
The influence of short-term nutrient changes on follicle growth and embryo production following superovulation in beef heifers
Robert L. Nolan, D. O’Callaghan, R.T. Duby et al. · Theriogenology · 1998 · 91 citations
Agriculture, Animal Sciences, Dairy Science +16
Effect of type and quantity of concentrates on superovulation and embryo yield in beef heifers
H. Yaakub, D. O’Callaghan, M.P. Boland · Theriogenology · 1999 · 82 citations
Agriculture, Animal Sciences, Dairy Science +9
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