Tsigai sheep breeding interlinear crosses

Abstract. Domestic sheep breeds potential must be preserved in breeding farms, and the main method of improving breed is working with lines. The genetic variability formed by specialized Therefore, further improvement itself should carried out along way its Each lines according to certain characteristics. presence such structures that are not related one ways improve productive biological characteristics breed. interlinear crosses order identify optimal combinations used. purpose this work study bright Qigai on basis retrospective data. Statistical methods were used study. Scientific novelty. Tsigai young females economically useful traits analyzed. Results research. indicators live weight 53.0 ± 1.1 ... 47.0 1.0 kg a coefficient variation 6.4%. wool fibers fineness 56th quality 14.0% was noted. 54th occupy largest share 65.1 %. remaining 50th fineness. distribution positive level correlation comparison length characterized following way: fact confirmed coefficients conjugacy: r = 0.98 ..0.57. 36.1 % obtained has strong reliable level, 47.2 weak unreliable. In noted as follow: 65204 × 1128 conjunction shearing, 884 80077 20832 females.