The aim of this study was to improve prediction of breeding values for direct and indirect effects on survival time in two purebred White Leghorn layer lines in which the level of mortality was high due to cannibalism [ 15].
Besides, the importance of imprinting for these traits has also been reported on a polygenic level within purebred pigs by Neugebauer et al. [ 25].
Arguing against this, however, hybrid females had relatively smaller heart ventricles (P = 0.0034) than either purebred line, but exhibited intermediate levels of wheel running (Fig. 1; Tables 1, 2).
Significant variables associated with subclinical mastitis risk at the quarter level included being a purebred Holstein cow, higher parity, and increased months in milk.
Foals out of Dales mares and non-Dales stallions may not be registered, as the stud book wishes to promote breeding of purebred ponies to maintain the current population levels.
Various degrees of introgressive hybridization were also observed in all seven purebred sturgeons with H. dauricus showing the highest level.
In this system, F1 sows from two maternal breeds are mated to purebred boars from a breed that has high-level production traits (growth, leanness, feed efficiency) to produce pigs for slaughter.
Four separate classification schemes using combinations of purebred and mixed breed dogs were used to compare the levels of Canis familiaris 1 in dust samples collected from homes with hypoallergenic versus nonhypoallergenic dogs from an established birth cohort.
When the size of the reference population is very large, it is not necessary to use a reference population that combines the two breeds to impute the genotypes of purebred animals because a within-breed reference population can provide a very high level of imputation accuracy (correct rate ≥ 0.99, correlation ≥ 0.95).
In this study, purebred and crossbred Iberian piglets differing in muscle traits were compared at the transcriptome level, and a remarkable number of DE probes were detected.
