Predicting heterosis for egg production traits in crossbred offspring of individual White Leghorn sires using genome-wide SNP data

Table 2 Estimated regression coefficients of egg number and weight on heterozygosity excess ¹ , their standard errors (se) and p-values

¹ β is the partial regression coefficient of trait values on the full heterozygosity excess, \( {\left({p}_i-{p}_j\right)}^2+\left({p}_{s_i}-{p}_i\right)\left(1-2{p}_j\right) \). β was estimated from Model 1; β ₁ is the partial regression coefficient of trait values on the between-line component (p _i − p _j)², and β ₂ is the partial regression coefficient of trait values on the within-line component, \( \left({p}_{s_i}-{p}_i\right)\left(1-2{p}_j\right) \), of the heterozygosity excess. β ₁ and β ₂ were estimated simultaneously from Model 2.

ISSN: 1297-9686