Dry period plane of energy: Effects on feed intake, energy balance, milk production, and composition in transition dairy cows

Journal of Dairy Science
S MannD V Nydam

Abstract

The objective was to investigate the effect of different dry cow feeding strategies on the degree of ketonemia postpartum. Epidemiologic studies provide evidence of an association between elevated β-hydroxybutyrate (BHBA) concentrations in postpartum dairy cows and a decreased risk for reproductive success as well as increased risk for several diseases in early lactation, such as displacement of the abomasum and metritis. The plane of energy fed to cows in the prepartum period has been shown to influence ketogenesis and the degree of negative energy balance postpartum. Our hypothesis was that a high-fiber, controlled-energy diet (C) fed during the dry period would lead to a lower degree of hyperketonemia in the first weeks postpartum compared with either a high-energy diet (H), or a diet where an intermediate level of energy would only be fed in the close-up period (starting at 28d before expected parturition), following the same controlled-energy diet in the far-off period. Hyperketonemia in this study was defined as a blood BHBA concentration of ≥1.2mmol/L. Holstein cows (n=84) entering parity 2 or greater were enrolled using a randomized block design and housed in individual tiestalls. All treatment diets were fed for ad lib...Continue Reading

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Citations

Dec 3, 2015·Journal of Dairy Science·S MannD V Nydam
Oct 21, 2015·Animals : an Open Access Journal From MDPI·Albert Sundrum
Feb 28, 2016·Journal of Comparative Physiology. B, Biochemical, Systemic, and Environmental Physiology·S MannJ J Wakshlag
Nov 21, 2017·Journal of Dairy Science·T R OvertonD V Nydam
Dec 19, 2017·Journal of Dairy Science·M M FryE Behling-Kelly
Sep 25, 2019·Scientific Reports·Chang ZhaoChuang Xu
Dec 7, 2019·Animals : an Open Access Journal From MDPI·Francisco A Leal YepesHeather J Huson
Aug 23, 2020·Animals : an Open Access Journal From MDPI·Osvaldo Bogado PascottiniGeert Opsomer
Mar 5, 2019·Journal of Dairy Science·K M DancyT J DeVries
May 10, 2020·Animals : an Open Access Journal From MDPI·Julien SoulatIsabelle Dufrasne
Feb 13, 2021·Animals : an Open Access Journal From MDPI·Luciano S Caixeta, Bobwealth O Omontese
Mar 10, 2021·Journal of Dairy Science·Fabiana F CardosoMarina A C Danes

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