Board invited review: The purebred-crossbred correlation in pigs: A review of theory, estimates, and implications

Y.C.J. Wientjes*, M.P.L. Calus

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

22 Citations (Scopus)

Abstract

Pig and poultry production relies on crossbreeding of purebred populations to produce production animals. In those breeding schemes, selection takes place within the purebred population to improve crossbred performance (CB performance). The genetic correlation between purebred performance (PB performance) and CB performance () is, however, lower than unity for many traits. When is low, the use of CB performance in selection is required to achieve sizable genetic progress. The objectives of this paper were to describe the different components and importance of , and to review existing literature that report estimates in pigs. The has 3 components: 1) genotype by genotype interactions, 2) genotype by environment interactions, and 3) differences in trait measurements. We theoretically showed that direct selection for CB performance reduces the response to selection in purebreds for.
Original languageEnglish
Pages (from-to)3467-3478
JournalJournal of Animal Science
Volume95
Issue number8
DOIs
Publication statusPublished - 2017

Keywords

  • Crossbreeding
  • Genotype by environment interaction
  • Pigs
  • Purebred-crossbred correlation

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