Effects of monensin on the metabolism of periparturient dairy cows

Journal of Dairy Science
K A StephensonL B Lowe

Abstract

The effects of monensin on plasma concentrations and changes in plasma concentrations of energy metabolites and minerals over time were investigated using 24 multiparous Holstein cows. Cows were paired according to farm, predicted date of calving, and body condition score and were randomly allocated to two groups. Treated cows were given a ruminal bolus containing 32 g of monensin at 50 +/- 7 d before predicted calving. Treated cows had lower plasma concentrations of glucose, free fatty acid (FFA), and beta-hydroxybutyrate (BHBA) than did control cows before calving, indicating that monensin influenced energy metabolism. However, no significant differences in plasma concentrations of glucose, FFA, and BHBA were found between groups after calving. Plasma BHBA concentrations increased more before calving in control cows, and plasma FFA and urea concentrations increased significantly before calving in all cows. No significant differences in body weight, plasma concentrations of urea, or whole blood concentrations of glutathione peroxidase were detected between groups before or after calving. Plasma ceruloplasmin activity did not differ between groups before calving, but was significantly higher in treated cows after calving. Plasm...Continue Reading

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Citations

Apr 3, 2014·Journal of Animal Physiology and Animal Nutrition·E AnassoriM Hadian
Sep 11, 2017·Journal of Dairy Science·X Markantonatos, G A Varga
Aug 17, 2006·Australian Veterinary Journal·E KennermanH Biricik
Jan 30, 2002·Journal of Dairy Science·A ArieliG A Varga
Dec 16, 2003·Journal of Dairy Science·S K TallamJ S Walton
Jul 31, 1998·Journal of Dairy Science·S BeckettL Wade
Sep 10, 1999·Journal of Dairy Science·L J ErasmusD O'Hagan

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