INDEX SELECTION IN COLOR KARAKUL BREEDING

Abstract

The results of these scientific studies show that the value of the index, the severity of amber color is inherited highly and stably and amounted to 57.53% in the first group, 64.71% in the second group, 56.0 in the third group, and they are inherited stably t = 9.93 - 11.17- 9.77, which is a high yield of lambs with a degree of lightening of 3/10 and 4 / 10- 42.46- 44.12%; 29.41- 35.62%. Here, the lowest indicator was observed with small degrees of lightening 5.48-8.0%. The intergroup difference for this trait was insignificant (P> 0.05) and the inheritance of the desired form of severity in the herd was within 48.0-76.7%, of which the intense forms was 25.33-45.20%. According to the desired equalization - within 66.67- 86.30% (P<0.001). Analysis of the data of individual groups shows that the maximum yield of lambs of equal color - 86.30% was obtained in the offspring of animals of the first group, that the yield of litters with a sharp contrast in the herd is high and amounted to within 65.33-83.56% (P <0.001) . The level of offspring of unwanted contrast with washed out was low - 16.49-34.67%. Between the groups, a high yield of sharp contrast lambs sur - 83.56% was obtained in the offspring of rams of the first group, which exceeds the indicators of the second group by 11.5% (72.06%), the third group -18.23% (65.33%) (P <0.05). The generalization of the analyzes of the results of the study show the effectiveness of the selection by the index, the severity of the amber color.