Using Pedigree and Genomic Data toward Better Management of Inbreeding in Italian Dairy Sheep and Goat Breeds.

ABSTRACT: The inbreeding coefficient is an important parameter for livestock management. Small ruminant breeders and associations mainly rely on pedigree information, but genomic tools are gaining relevance, overcoming possible pedigree inconsistencies. This study investigates the relationship between pedigree-based and genomic inbreeding in two goat and four sheep dairy breeds. Pedigree and genomic data (medium-density SNPchip) were obtained for 3107 goats and 2511 sheep. We estimated pedigree depth (number of fully traced generations, FullGen) and inbreeding (F_PED), as well as two genomic inbreeding indexes, using runs of the homozygosity (F_ROH) and genomic relationship matrix (F_GRM). The correlation between the inbreeding coefficients was assessed. A linear regres

SUBMITTER: Cortellari M 

PROVIDER: S-EPMC9597836 | biostudies-literature | 2022 Oct

REPOSITORIES: biostudies-literature