Genetic associations between stayability and longevity in commercial crossbred sows, and stayability in multiplier sows.

ABSTRACT: Longevity in commercial sows is often selected for through stayability traits measured in purebred animals. However, this may not be justifiable because longevity and stayability may be subject to both genotype by environment interaction (G × E) and genotype by genotype interaction (G × G). This study tested the hypothesis that stayability to service after first parity is more strongly genetically correlated with longevity in commercial herds when stayability is measured in commercial herds rather than multiplier herds. The analysis was based on farrowing- and service-records from 470,824 sows (189,263 multiplier; 281,561 commercial) and 300 herds (156 multiplier; 144 commercial sows). Multiplier sows were either purebred Landrace or Yorkshire and commercial sows were mainly rotationally c

SUBMITTER: Poulsen BG 

PROVIDER: S-EPMC7314382 | biostudies-literature | 2020 Jun

REPOSITORIES: biostudies-literature