Supplemental progesterone increases pregnancy rates and embryo survival in lactating dairy cows

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dc.contributor.author El-Zarkouny, S. Z.
dc.contributor.author Cartmill, J. A.
dc.contributor.author Stevenson, Jeffrey S.
dc.date.accessioned 2011-08-02T21:25:13Z
dc.date.available 2011-08-02T21:25:13Z
dc.date.issued 2011-08-02
dc.identifier.uri http://hdl.handle.net/2097/11942
dc.description.abstract Administering progesterone to lactating dairy cows has sometimes proven effective in increasing pregnancy rates. In this study, cows were treated with the Ovsynch protocol in addition to supplemental progesterone given for 7 days between the first gonadotropin- releasing hormone (GnRH) injection and the prostaglandin F2á (PGF2á) injection. Conception rates were greater in lactating Holstein dairy cows receiving exogenous progesterone (62.5%) than in controls treated with only the Ovsynch protocol (35.5%). In addition, progesterone supplementation increased embryo survival between 28 and 56 days of pregnancy. en_US
dc.publisher Kansas Agricultural Experiment Station and Cooperative Extension Service en_US
dc.relation.isPartOf Dairy Day, 1999 en_US
dc.relation.isPartOf Kansas Agricultural Experiment Station contribution; no. 00-136-S en_US
dc.relation.isPartOf Report of progress (Kansas Agricultural Experiment Station and Cooperative Extension Service); 842 en_US
dc.subject Dairy en_US
dc.subject Ovsynch protocol en_US
dc.subject Progesterone en_US
dc.subject Lactating cows en_US
dc.subject Pregnancy rates en_US
dc.title Supplemental progesterone increases pregnancy rates and embryo survival in lactating dairy cows en_US
dc.type Conference paper en_US
dc.date.published 1999 en_US
dc.citation.epage 74 en_US
dc.citation.spage 73 en_US
dc.description.conference Dairy Day, 1999, Kansas State University, Manhattan, KS, 1999
dc.contributor.authoreid jss en_US


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