[Phenotypic and genotypic variability in signs of productivity of a new Siberian type of the Sovetskaya meat-wool species of sheep].

The heritability of major productivity traits in the new Siberian type of mutton-wool sheep was estimated by different methods. The repeatability of these traits was analyzed. The correlation between various productivity traits and the change in correlation throughout the formation of the new Siberian type of mutton-wool sheep were studied. The traits studied were demonstrated to be important for estimation of the efficiency of selection for commercially important traits and for predicting and planning their development.