title: Lack of association of bovine MHC class I alleles with carcass and reproductive traits.
abstract: The present study was carried out to examine whether a relationship between bovine major histocompatibility complex (BoLA) class I alleles and carcass traits or reproductive performance exists in Braunvieh and Fleckvieh AI (artificial insemination) bulls. The influence of BoLA class I (BoLA-A) alleles on deregressed breeding values for net growth rate, carcass index and thigh volume was assessed in Braunvieh crosses and Fleckvieh bulls with a gene substitution model. The reproductive traits: non-return rate and interval between first and last insemination of daughters (female fertility), as well as non-return rate of inseminated cows (male fertility), were only investigated in Fleckvieh animals. No influence of the BoLA-A region on the traits evaluated could be demonstrated. An improper, i.e. less restrictive analysis would have led to spurious results.
authors.affiliation: Department of Immunogenetics, University of Bern, Switzerland.
authors.forename: M A
authors.initials: MA
authors.lastname: Arriëns
authors.forename: A
authors.initials: A
authors.lastname: Hofer
authors.forename: G
authors.initials: G
authors.lastname: Obexer-Ruff
authors.forename: S
authors.initials: S
authors.lastname: Lazary
mesh_terms: D000483:Alleles; D000818:Animals; D002417:Cattle / Q000235:genetics* / Q000276:immunology* / Q000502:physiology; D005260:Female; D005787:Gene Frequency; D005805:Genes, MHC Class I; D006128:Growth / Q000235:genetics / Q000276:immunology; D008297:Male; D008957:Models, Genetic; D011247:Pregnancy; D012098:Reproduction / Q000235:genetics* / Q000276:immunology*