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Association between feed sorting and the prevalence of metabolic disorders in Hungarian large-scale dairy herds

Published online by Cambridge University Press:  22 May 2019

Viktor Jurkovich ,
László Könyves  and
Mikolt Bakony
Viktor Jurkovich*
Affiliation:
Department of Animal Hygiene, Herd Health and Veterinary Ethology, University of Veterinary Medicine, Budapest, Hungary
László Könyves
Affiliation:
Department of Animal Hygiene, Herd Health and Veterinary Ethology, University of Veterinary Medicine, Budapest, Hungary
Mikolt Bakony
Affiliation:
Department of Animal Hygiene, Herd Health and Veterinary Ethology, University of Veterinary Medicine, Budapest, Hungary
*
Author for correspondence: Viktor Jurkovich, Email: jurkovich.viktor@univet.hu
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Abstract

This research communication describes the possible association between feed sorting and the risk of metabolic disorders in dairy cows. Feed sorting, that is selecting smaller size TMR particles over longer length fibers, can lead to imbalanced energy input. In addition, sorting can lead to lower nutritive value of leftover TMR. To detect a possible relationship between TMR sorting and the occurrence of metabolic disorders in large-scale herds, TMR separation and metabolic profile tests were performed in 22 Hungarian dairies. Feed sorting was defined as >5% alteration in the mass proportion of any of the TMR fractions between the time of feed distribution and 5–6 h later. The prevalence of ketosis and subclinical acidosis differed between feed sorting and non-sorting groups. Inhomogeneous TMR seems to be a predisposing factor for imbalanced energy status. TMR homogeneity measurements should be routinely included in herd health monitoring.

Keywords

Dairy cowfeed sortingtotal mixed ration
Type
Research Article
Information
Journal of Dairy Research , Volume 86 , Issue 2 , May 2019 , pp. 162 - 164
Copyright
Copyright © Hannah Dairy Research Foundation 2019 

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