Multiple-trait estimates of genetic parameters for metabolic disease traits, fertility disorders, and their predictors in Canadian Holsteins

Journal of Dairy Science
J JamrozikF Miglior

Abstract

Producer-recorded health data for metabolic disease traits and fertility disorders on 35,575 Canadian Holstein cows were jointly analyzed with selected indicator traits. Metabolic diseases included clinical ketosis (KET) and displaced abomasum (DA); fertility disorders were metritis (MET) and retained placenta (RP); and disease indicators were fat-to-protein ratio, milk β-hydroxybutyrate, and body condition score (BCS) in the first lactation. Traits in first and later (up to fifth) lactations were treated as correlated in the multiple-trait (13 traits in total) animal linear model. Bayesian methods with Gibbs sampling were implemented for the analysis. Estimates of heritability for disease incidence were low, up to 0.06 for DA in first lactation. Among disease traits, the environmental herd-year variance constituted 4% of the total variance for KET and less for other traits. First- and later-lactation disease traits were genetically correlated (from 0.66 to 0.72) across all traits, indicating different genetic backgrounds for first and later lactations. Genetic correlations between KET and DA were relatively strong and positive (up to 0.79) in both first- and later-lactation cows. Genetic correlations between fertility disorder...Continue Reading

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Citations

Jan 19, 2016·Journal of Dairy Science·J P ChesnaisF Miglior
Jul 4, 2016·Journal of Dairy Science·J E PryceJ B Cole
Jun 9, 2015·Journal of Dairy Science·T Suchocki, J Szyda
Jul 20, 2007·Journal of Dairy Science·S KönigH Simianer
Apr 20, 2017·Journal of Animal Breeding and Genetics = Zeitschrift Für Tierzüchtung Und Züchtungsbiologie·E Gernand, S König
Nov 21, 2017·Journal of Dairy Science·Filippo MigliorChristine F Baes
Nov 26, 2018·Journal of Dairy Science·A R GuariniF S Schenkel
Mar 12, 2019·Animal : an International Journal of Animal Bioscience·A BenedetM De Marchi
Oct 8, 2019·Journal of Dairy Science·T D W LukeJ E Pryce
Mar 22, 2020·Journal of Dairy Science·Grum GebreyesusGoutam Sahana
Nov 20, 2018·Animal : an International Journal of Animal Bioscience·E Rinell, B Heringstad
Mar 20, 2018·Journal of Dairy Science·V KroezenE J Squires
Apr 26, 2020·Journal of Dairy Science·F MalchiodiF Miglior
May 4, 2021·Journal of Dairy Science·G A Oliveira JuniorC F Baes
Jun 29, 2021·Journal of Animal Breeding and Genetics = Zeitschrift Für Tierzüchtung Und Züchtungsbiologie·Laura FalchiNicolò P P Macciotta

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