Estrus Synchronization Using MGA or Altrenogest in Crossbred Beef Heifers

Robert A. Godke, Airhart, C, Perez, O, Ferguson, C. E.  |  3/29/2005 2:02:04 AM

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Estrus synchronization had its humble beginnings in the 1940s when progesterone and pregnant mare serum gonadotropin were administered to cattle at varying stages of the estrous cycle to alter cyclicity. The objective of this study was to evaluate the effectiveness of altrenogest for estrus synchronization of crossbred beef heifers.
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