Search results for " Milk traits"
showing 2 items of 2 documents
Genome-wide association study for milk production traits in Valle del Belice sheep
2017
Over the last years, high-throughput technologies have provided the opportunity to explore the genomes of livestock species to identify regions influencing traits of economic interest. Genome wide association studies (GWAS) have been widely used to disentangle the genetic variation in complex phenotypes, such as milk production traits in sheep. The study presented here investigated the possible association of genome-wide SNPs and breeding values for milk production traits in the Valle del Belice sheep. The studied population consisted of a total of 481 ewes belonging to 9 half-sib families with available records for milk yield (MY), protein and fat percentage (P% and F%, respectively). All …
Effect of hairless gene polymorphism on the breeding values of milk production traits in Valle del Belice dairy sheep
2013
The aim of this work was to assess the association between the hairless genotypes and estimated breeding values (EBVs) for milk yield (MY), fat (FAT) and protein (PRT) content in Valle del Belice dairy sheep breed. A data set from 465 randomly chosen unrelated individuals was analyzed. EBV for MY, FAT and PRT contents were estimated by REML analysis of a single trait repeatability animal model. The genotype effect on EBV was assessed by ANOVA and by the Tukey–Kramer multiple comparison test. The PCR-SSCP test showed the presence of CC and CT genotypes in Valle del Belice individuals. Some differences in milk production traits between the genotypes were found. For MY, individuals with CT gen…