ВЛИЯНИЕ МОЛОЧНОСТИ И ДОЕНИЯ МАТОК НА РОСТ И ПРОДУКТИВНОСТЬ ЯГНЯТ

Abstract

A shortening of the milking period has a negative effect on lambs, and this effect is more pronounced the earlier the beating is carried out and milking begins, but the growth of young animals is highly dependent on the level of non-dairy nutrition and rearing technology. In this regard, the study of the influence of milking on the quality and productivity of the offspring was carried out taking into account the characteristics of feeding and keeping lambs. The experiment was carried out in 2023 in the foothill zone of the Republic of North Ossetia-Alania on sheep of the Tushino breed. All experimental lambs were divided into two groups: a control group, raised in the usual manner, and an experimental group, whose queens were not milked. All lambs had coarse wool, were kept in the same conditions and were allowed access to the uterus 2 times a day - in the morning and in the evening, but the rest of the time they were kept separately. Milking of sheep on the farm began in early June, that is, when the lambs reached 2.5 months of age. Lambs of both groups were completely weaned at 5 months of age. It was found that the lambs of the experimental group, whose uterus were not milked, grew better and had a greater body weight at the time of lambing than the control group. The difference in body weight was 1.92 kg for rams and 2.42 kg for lambs, in favor of the experimental group. After the start of milking of the queens of the control group, the picture changes. During the third month of life, the absolute increase in the experimental group was 6.07-5.34 kg (little lambs), and in the control group - 4.56-3.69 kg. The lambs spent the fourth month of life on alpine pastures, where the growth of the control group (6.47-5.62 kg) was lower than that of the experimental group (5.87-5.39 kg). The last month of the suckling period is characterized by a significant drop in the growth of lambs in the control group (3.16-2.88). The growth of lambs in the experimental group also decreased (4.83-4.67).