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Abstract

Pregnancy per artificial insemination (AI) was evaluated in dairy cows (Bos taurus) subjected to synchronization and resynchronization for timed AI (TAI). Cows (n=718) received prostaglandin F (PGF) on Days-38 and -24 (Days 39 and 53 postpartum), gonadotropin-releasing hormone (GnRH) on Day-10,...

Author(s)
Bartolome, J. A.; Leeuwen, J. J. J. van; Thieme, M.; Sa'filho, O. G.; Melendez, P.; Archbald, L. F.; Thatcher, W. W.
Publisher
Elsevier, New York, USA
Citation
Theriogenology, 2009, 72, 6, pp 869-878
Abstract

This study compared the pregnancy rate in cows inseminated after two different pre-synchronization protocols based on clinical features of the genital tract and treatment with either PGF or GnRH. A total of 340 reproductively normal lactating dairy cows was divided into two groups. Cows in Group...

Author(s)
Bartolome, J. A.; Sheerin, P.; Luznar, S.; Melendez, P.; Kelbert, D.; Risco, C. A.; Thatcher, W. W.; Archbald, L. F.
Publisher
American Association of Bovine Practitioners, Stillwater, USA
Citation
Bovine Practitioner, 2002, 36, 1, pp 35-39