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Abstract

Two experiments were conducted with the aim of determining the effect of equine chorionic gonadotropin (eCG) administration on day 14 after insemination on ovarian response and pregnancy establishment in postpartum anestrous beef cows. In both experiments, cows were subjected to a progesterone- and ...

Author(s)
Núñez-Olivera, R.; Castro, T. de; Bó, G. A.; Piaggio, J.; Menchaca, A.
Publisher
Elsevier Inc, New York, USA
Citation
Domestic Animal Endocrinology, 2018, 62, pp 24-31
Abstract

In seasonally calving dairy areas, a critical index of efficiency and profitability is the ability to maintain a short annual calving spread. In essence, this means that all cows need to conceive within 90 days of calving. Anovulatory anoestrus (AA) is a major barrier to reproductive performance...

Author(s)
Bryan, M. A.; Bó, G. A.; Heuer, C.; Emslie, F. R.
Publisher
CSIRO Publishing, Collingwood, Australia
Citation
Reproduction, Fertility and Development, 2010, 22, 1, pp 126-131
Abstract

Greater milk production in modern dairy cattle has led to greater nutritional needs, increased rates of post-partum anoestrus, reduced oestrus detection rates, lower conception and pregnancy rates and a higher incidence of embryonic mortality. In addition, larger herds have resulted in management...

Author(s)
Bó, G. A.; Mapletoft, R. J.
Publisher
British Cattle Veterinary Association, Quedgeley, UK
Citation
Cattle Practice, 2012, 20, 1, pp 19-28