The article presents the results of research on the wool productivity of crossbreeds when fed compound feed with a mineral-phytobiotic additive. The object of research was the use of bright ones, obtained from breeding crossbred ewes "in themselves" (3/4P x 3/4C).
For research, two groups of 20-day local ditches of 25 heads each were formed. The young of the control group received a balanced compound feed, and the experimental group received the same compound feed to which was added 1,8% of a mineral-phytobiotic additive, which included metasilicate and sodium sulfate (a mineral particle) and extracts of essential oils of chili pepper, oregano and cinnamon ( phytobiotic part).
As a result of the conducted research, it was established that the addition of a mineral-phytobiotic additive significantly improves wool productivity. In particular, the shearing of unwashed and clean wool and the yield of clean fiber were higher by 14,93%, respectively, in the yaks of the research group; 20,66% and 5,15%. The coefficient of wooliness in the lambs of the experimental group was 44,24 g/kg body weight. m., and in animals of the control group this indicator was at the level of 42,51 g/kg body weight. m., or 4,07 % lower
Adding a mineral-phytobiotic supplement to the ration of goats helps to increase the natural and true length of wool at shearing by 9,01 and 8,95 %, respectively, compared to the control group.
In the pits of the experimental group, the wool fibers became more uniform in terms of tonnage, the number of individuals with wool of quality 56 increased (70%; average fiber tonnage 28,35 μm), while in the pits of the control group of animals with wool of this quality there was 30% with an average tonnage of wool fibers 28,75 μm. In the experimental group, the strength of the wool was 9,29 km, and in the control group, the breaking length was 7,97 km, or 16,56 % greater.
