New parameters of lifetime assessment of meat productivity of Dzhalginskiy merino sheep

Abstract. For breeding work in order to increase productivity indicators sheep, it is necessary use the most informative exterior parameters. This dictates need develop new approaches assessing phenotypic Purpose. Development of parameters for live assessment meat sheep Dzhalginskiy merino breed and study their significance using method principal components. Scientific novelty. We have proposed several lifetime studied possibility breed. Methods. The was life determination size individual muscle groups such as girth shoulder, forearm thigh by instrumental methods, well measuring eye, thickness femoral fat ultrasound. To assess parameters, comparison with those used existing practice, we applied component correlation analysis. Results. Five main components been established, which determine 70, 3% total variability They characterize forelimbs, chest, muscular hind limbs lumbar region. hip showed high calculation found be little significance. It also that measurements do not reliably correlate each other. High positive significant correlations were only between body weight average daily gain, width shoulder height at sacrum. Thus, advisable additional