Association between the proportion of sampled transition cows with increased nonesterified fatty acids and beta-hydroxybutyrate and disease incidence, pregnancy rate, and milk production at the herd level

Journal of Dairy Science
Paula A OspinaT R Overton

Abstract

In this study the herd alarm level was defined as the proportion of sampled transition cows per herd with increased prepartum nonesterified fatty acid (NEFA), postpartum beta-hydroxybutyrate (BHBA), or NEFA concentrations that were associated with herd-level incidence of displaced abomasum (DA) or clinical ketosis (CK), pregnancy rate (PR), and milk production. The objectives were to 1) identify the herd alarm level for excessive negative energy balance and 2) describe the herd-level prevalence of this proportion. This was a prospective cohort study of 60 free-stall herds fed total mixed rations in the northeast United States. Two cohorts of approximately 15 animals were assessed for prepartum NEFA and postpartum BHBA and NEFA. The herd alarm level (i.e., the proportion of sampled animals above a certain metabolite threshold) was as follows: 15% had prepartum NEFA of 0.27 mEq/L; 15 and 20% had BHBA of 10 and 12 mg/dL, respectively; and 15% had postpartum NEFA of 0.60 and 0.70 mEq/L. The different herd alarm levels correspond to differences between the metabolites and respective herd-level effect. The herd-level effects for herds above the herd alarm level for prepartum NEFA were 3.6% increase in DA and CK incidence, 1.2% decrea...Continue Reading

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Citations

May 23, 2014·Animal : an International Journal of Animal Bioscience·J K Drackley, F C Cardoso
Oct 21, 2015·Animals : an Open Access Journal From MDPI·Fenja KlevenhusenQendrim Zebeli
Nov 11, 2015·Tierärztliche Praxis. Ausgabe G, Grosstiere/Nutztiere·C FurkenM Hoedemaker
Apr 1, 2016·Tierärztliche Praxis. Ausgabe G, Grosstiere/Nutztiere·R J Van Saun
Aug 25, 2012·Journal of Dairy Science·J A A McArtG R Oetzel
Oct 30, 2012·Journal of Dairy Science·J A A McArtG R Oetzel
Jul 3, 2013·The Veterinary Clinics of North America. Food Animal Practice·Jessica L GordonTodd F Duffield
Jun 22, 2016·The Veterinary Clinics of North America. Food Animal Practice·Robert O Gilbert
Nov 21, 2017·Journal of Dairy Science·T R OvertonD V Nydam
Sep 11, 2017·Journal of Dairy Science·X Markantonatos, G A Varga
Nov 23, 2017·Polish Journal of Veterinary Sciences·J JežekJ Starič
Mar 3, 2020·The Journal of Dairy Research·Maya ZachutLorenzo E Hernández-Castellano
Sep 8, 2017·Tierärztliche Praxis. Ausgabe G, Grosstiere/Nutztiere·Pamela Oetting-Neumann, Martina Hoedemaker

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