Relationship between inbreeding and milk production traits in two Italian dairy sheep breeds.

ABSTRACT: The effects of inbreeding in livestock species breeds have been well documented and they have a negative impact on profitability. The objective of this study was to evaluate the levels of inbreeding in Sarda (SAR, n = 785) and Valle del Belice (VdB, n = 473) dairy sheep breeds and their impact on milk production traits. Two inbreeding coefficients (F) were estimated: using pedigree (F_PED ), or runs of homozygosity (ROH; F_ROH ) at different minimum ROH lengths and different ROH classes. After the quality control, 38,779 single nucleotide polymorphisms remained for further analyses. A mixed-linear model was used to evaluate the impact of inbreeding coefficients on production traits within each breed. VdB showed higher inbreeding coefficients compared to SAR, with both b

SUBMITTER: Cesarani A 

PROVIDER: S-EPMC10092622 | biostudies-literature | 2023 Jan

REPOSITORIES: biostudies-literature