Influence of prebreeding progesterone plus prostaglandin F2-alpha on estrus and fertility in lactating dairy cows

dc.citation.epage34en_US
dc.citation.spage32en_US
dc.contributor.authorMee, M.O.
dc.contributor.authorStewart, R.E.
dc.contributor.authorStevenson, Jeffrey S.
dc.contributor.authorCall, Edward P.
dc.contributor.authoreidjssen_US
dc.date.accessioned2012-09-20T19:34:14Z
dc.date.available2012-09-20T19:34:14Z
dc.date.issued2012-09-20
dc.date.published1987en_US
dc.description.abstractProgesterone administered before breeding may increase estrous expression and subsequent fertility in lactating dairy cows. Holstein cows (n=302) were assigned randomly at calving to three groups. Cows received no treatment (controls), one injection of prostaglandin F 2-alpha (PGF), or progesterone plus one injection of PGF (PRID + PGF). The average interval to estrus was 5 days shorter in PRID + PGF cows compared to cows given only PGF. In addition, more cows were observed in estrus 2 to 5 days after treatment in the PRID + PGF group compared to the PGF group. Average days from calving to conception were reduced in PRID + PGF cows by 15 to 20 days compared to control and PGF cows. We concluded that prebeeding progesterone in combination with PGF appears to enhance fertility.en_US
dc.description.conferenceDairy Day, 1987, Kansas State University, Manhattan, KS, 1987
dc.identifier.urihttp://hdl.handle.net/2097/14729
dc.publisherKansas Agricultural Experiment Stationen_US
dc.relation.isPartOfKansas Agricultural Experiment Station contribution; no. 88-114-Sen_US
dc.relation.isPartOfReport of progress (Kansas Agricultural Experiment Station); 527en_US
dc.subjectDairyen_US
dc.subjectProgesteroneen_US
dc.subjectProstaglandin F2-alphaen_US
dc.subjectFertilityen_US
dc.subjectLactationen_US
dc.titleInfluence of prebreeding progesterone plus prostaglandin F2-alpha on estrus and fertility in lactating dairy cowsen_US
dc.typeConference paperen_US

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