THE AMOUNT OF PIGMENTATION DEPENDING ON THE GENETICS OF THE BLACK KARAKUL
The article studies the effect of the pigmentation saturation of black karakul sheep on their heredity. The saturation of pigmentation in wool was studied in 20 rams of different origins. Among black rams obtained from one pair, the share of highly pigmented rams was 75.0%, the share of individuals with normal pigmentation was 25.0%. Among the rams obtained from brown and blue sheep, there were no individuals with very high pigmentation, and the proportion of individuals with normal pigmentation saturation was 50.0%. The study showed that the level of pigmentation in the coat of offspring depends on their origin. A high individual weight of 71.5 kg was confirmed in rams obtained from one pair. The smallest live weights of 64.8 kg and 68.4 kg were observed in individuals from colored rams. The inheritance of color and saturation of pigmentation was established in the offspring of black rams of different genotypes. Color inheritance has been studied in the offspring of black rams of different genotypes. When mating homozygous black rams with black queens, 100% of black lambs were obtained. When black rams obtained from brown sheep were mated with brown queens, 95.35% black and 4.65% brown offspring were obtained in the offspring. When mating black rams obtained from blue sheep with blue queens, 50.59% and 49.41% of offspring were obtained. In general, among lambs they are more often found with normal pigmentation, their share was 48.8-53.3%, and the share of lambs with low pigmentation saturation was 8.9-21.9%. The proportion of lambs with high pigmentation saturation -37.8% was observed in black animals from black rams. The lowest proportion of highly pigmented lambs, -30.2%, was obtained from black queens from blue sheep. At the same time, the lowest proportion of poorly saturated lambs - 8.9%, was obtained in black queens from black sheep, and the highest proportion of such lambs - 21.9%, in black queens from brown sheep.