Effect of Prostaglandin F Administered before Estrus Synchronization with Norgestomet and Estradiol Valerate on Calving Rates of Beef Cows

D. J. Kesler, D. B. Faulkner, R. Machado, F. A. Ireland, K. E. Tjardes

    Research output: Contribution to journalArticlepeer-review

    2 Scopus citations

    Abstract

    Three experiments were conducted to evaluate the effects of prostaglandin F treatments 5, 9, and 14 d before Syncro-Mate B® on calving rates of 1,072 beef cows from inseminations at a pre-set time. The administration of prostaglandin F 5 d before Syncro-Mate B decreased (P < .01) calving rates. This reduction was associated with lower (P < .05) calving rates in cows administered Syncro-Mate B in the first half of the estrous cycle. Calving rates were unaffected in cows administered prostaglandin F 9 d before Syncro-Mate B. The administration of prostaglandin F 14 d before Syncro-Mate B reduced (P < .05) calving rates in previously anestrous cows. In summary, prostaglandin F should not be administered to postpartum cows 5 to 14 d before Syncro-Mate B synchronization.

    Original languageEnglish (US)
    Pages (from-to)2076-2080
    Number of pages5
    JournalJournal of animal science
    Volume74
    Issue number9
    DOIs
    StatePublished - Sep 1996

    Keywords

    • Beef Cattle
    • Calving Rate
    • Estrus
    • Progesterone
    • Prostaglandins
    • Synchronization

    ASJC Scopus subject areas

    • Food Science
    • Animal Science and Zoology
    • Genetics

    Fingerprint

    Dive into the research topics of 'Effect of Prostaglandin F Administered before Estrus Synchronization with Norgestomet and Estradiol Valerate on Calving Rates of Beef Cows'. Together they form a unique fingerprint.

    Cite this