Effects of flunixin meglumine on pregnancy establishment in beef cattle

Journal of Animal Science
T W GearyR C Waterman

Abstract

The objective of this research was to determine effects of a single injection of the PG synthesis inhibitor flunixin meglumine (FM; 1.1 mg/kg of BW, intramuscularly) approximately 13 d (range 10 to 15 d) after AI on pregnancy establishment. Three experiments were conducted using estrus-synchronized heifers and cows. Technicians and AI sires were equally represented across treatments within locations and experiments. Bulls were introduced on the day of FM treatment. Pregnancy to AI was diagnosed 28 to 50 d after AI using ultrasonography. In Exp. 1, beef heifers (n = 1,221) were divided within 5 locations to receive FM or no further treatment (control). At insemination, heifers were divided into 2 similar pastures or pens, and approximately 13 d later, 1 group of heifers within each location was processed through an animal handling facility to administer FM treatment. There was no location x treatment interaction (P = 0.62) on AI pregnancy rates, so data were pooled. Pregnancy rates to AI were reduced (P = 0.02) among heifers receiving the FM treatment procedure (66%) compared with control heifers (72%). In Exp. 2, suckled beef cows (n = 719) were assigned within 2 locations to receive FM or no further treatment (control) approxi...Continue Reading

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Citations

Mar 20, 2013·Animal : an International Journal of Animal Bioscience·A TorresL Lopes-da-Costa
Oct 23, 2010·Journal of Dairy Science·X von Krueger, W Heuwieser
Feb 5, 2014·Journal of Animal Science·F M AbreuT W Geary
Feb 5, 2014·Journal of Animal Science·F M AbreuM L Day
May 29, 2015·Journal of Animal Science·D M PriceR D Randel
Nov 15, 2020·Animals : an Open Access Journal From MDPI·Aitor Fernandez-NovoSusana Astiz

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