Short communication: Genotype by housing interaction for conformation and workability traits in Danish Holsteins

13Citations
Citations of this article
16Readers
Mendeley users who have this article in their library.

Abstract

A total of 30,190 first-parity Danish Holstein cows housed in free stalls or tie stalls were analyzed to quantify to what degree genotype by housing interaction existed for 21 conformation and 2 workability traits. Each trait measured in different housing systems was treated as 2 separate traits in a bivariate animal model. Genetic correlations between the 2 traits as well as differences in genetic and residual variance were used as measurements of whether or not genotype by housing interaction occurred. Genetic correlations were in general close to unity (>0.9), except for body width (0.87 ±0.06). Genetic variance was greater (22% on average) for all traits except 2, whereas residual variance was greater for feet and leg traits and lower for body and udder traits when measured in tie-stall environments for nearly all traits. In total, this led to a greater heritability for traits measured in tie-stall barns. Conformation and workability traits measured in free stalls and tie stalls should not be considered as different traits when predicting breeding values, but heterogeneous variance could be accounted for. © American Dairy Science Association, 2008.

Cite

CITATION STYLE

APA

Lassen, J., & Mark, T. (2008). Short communication: Genotype by housing interaction for conformation and workability traits in Danish Holsteins. Journal of Dairy Science, 91(11), 4424–4428. https://doi.org/10.3168/jds.2008-1116

Register to see more suggestions

Mendeley helps you to discover research relevant for your work.

Already have an account?

Save time finding and organizing research with Mendeley

Sign up for free