Ovulation synchronization with progestins prior to a Cosynch protocol in beef cows

dc.citation.epage11en_US
dc.citation.spage9en_US
dc.contributor.authorMedina-Britos, M.A.
dc.contributor.authorRichardson, A.M.
dc.contributor.authorLamb, G.C.
dc.contributor.authorHensley, B.A.
dc.contributor.authorMarple, T.J.
dc.contributor.authorStevenson, Jeffrey S.
dc.contributor.authorJohnson, Sandra K.
dc.contributor.authoreidjssen_US
dc.contributor.authoreidsandyjen_US
dc.date.accessioned2010-08-06T20:55:08Z
dc.date.available2010-08-06T20:55:08Z
dc.date.issued2010-08-06T20:55:08Z
dc.date.published2001en_US
dc.description.abstractA multi-location study was conducted using suckled beef cows in Minnesota and Kansas to test the benefit of adding a source of progestin to the Cosynch ovulation synchronization protocol (injections of GnRH, 7 days before and 48 hr after an injection of PGF2", with a fixed-time artificial insemination (AI) administered at the same time as the second GnRH injection). Feeding melengestrol acetate (MGA) for 14 days followed in 12 days by the Cosynch protocol was compared to the Cosynch protocol with the addition of a progesterone-impregnated insert (CIDR) placed in the vagina for 7 days concurrent with the first GnRH injection. Pregnancy rates after the first AI (timed AI) were 22% greater with the CIDR insert, whereas conception rates for those cows returning to estrus were greater for cows previously fed MGA. Total pregnant cows after two inseminations were 64% for CIDR cows and 59% for MGA cows.en_US
dc.description.conferenceCattlemen's Day, 2001, Kansas State University, Manhattan, KS, March 2, 2001en_US
dc.identifier.urihttp://hdl.handle.net/2097/4554
dc.publisherKansas State University. Agricultural Experiment Station and Cooperative Extension Serviceen_US
dc.relation.isPartOfCattlemen’s Day, 2001en_US
dc.relation.isPartOfKansas Agricultural Experiment Station contribution; no. 01-318-Sen_US
dc.relation.isPartOfReport of progress (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service); 873en_US
dc.subjectBeefen_US
dc.subjectOvulation synchronizationen_US
dc.subjectCowsen_US
dc.subjectEmbryo survivalen_US
dc.subjectMGAen_US
dc.subjectCIDRen_US
dc.titleOvulation synchronization with progestins prior to a Cosynch protocol in beef cowsen_US
dc.typeConference paperen_US

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