CHANGES IN THE POSTNATAL ONTOGENESIS OF HISORIAN BREED SHEEP

<em>At different physiological stages of postnatal ontogeny of Hissar sheep, some histological parameters of the biceps were studied, and the growth rate of the absolute perimeter thickness of the muscle was increased from 3 days to 60 months. 51 times, and 2.6 times in inadequate animals; the absolute value of muscle perimeter thickness in sheep in both regions increased from 3 days to 60 months of postnatal ontogeny, and in the stages, after 18 months it was slightly thicker in animals with inadequate conditions than inadequate conditions; The absolute indicator of muscle endometrial thickness is a rapid increase in postnatal ontogeny from 3 days to 12 months, regardless of living conditions of sheep, and a significant increase in the next 18, 36, 60 months, and all studied postnatal development in young sheep with adequate conditions was lower than in inadequate conditions.</em>

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