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Abstract

Expanded use of artificial insemination (AI) and/or adoption of emerging reproductive technologies for beef heifers and cows require precise methods of estrous-cycle control. New protocols for inducing and synchronizing a fertile estrus in replacement beef heifers and postpartum beef cows in which...

Author(s)
Patterson, D. J.; Thomas, J. M.; Martin, N. T.; Nash, J. M.; Smith, M. F.
Publisher
Elsevier Inc, New York, USA
Citation
Veterinary Clinics of North America, Food Animal Practice, 2013, 29, 3, pp 591-617
Abstract

This experiment compared 2 long-term controlled internal drug release (CIDR)-based protocols to synchronize estrus before fixed-time artificial insemination (FTAI) in postpartum beef cows. Cows were assigned to treatments by age, BCS, and days postpartum. Cows assigned to the 14- to 19-d CIDR-PGF ...

Author(s)
Martin, N. T.; Thomas, J. M.; Nash, J. M.; Mallory, D. A.; Ellersieck, M. R.; Poock, S. E.; Smith, M. F.; Patterson, D. J.
Publisher
American Society of Animal Science, Savoy, USA
Citation
Journal of Animal Science, 2014, 92, 4, pp 1759-1767