TECHNOLOGY OF FEED ADDITIVES FROM THISTLE’S SEEDS PREPARATION

Abstract

Some features of feed additives’ producing technology for dry cows are presented. This thistle seeds’ feed composition and biologically active substances is justified. The thistle grains in rations using the digestive’s process significantly improving and the cows’ milk production increasing. This feed additive in all types of animals’ ration and compound feeds can be used. The parameters of the grain’s physical forms are studied, its grinding features are established. To determine the bulk materials’ particles floating speeds, the thistle grains floating speeds and crushed grain particles distribution’s polygons are constructed. The technological regulations for feed additives on existing domestic equipment for the feed preparation at workshop have been developed: a feed unit "Dose", a crusher with a pneumatic intake sleeve, an extruder, a small mixer for premix, a mobile transporter and tensometric scales for components’ weighing. An experimental sample of the feed additive was made. Its composition in % by weight is: crushed thistle grain - 92,76; profort - 6,00; betaine hydrochloride (97%) - 1,20; vitamin E (50%) bulk - 0,04. The percentage shows the amount of active substance in the drug. The developed feed additive at the dry cows’ ration in a dose of 0,5 kg per head per day was tested. Its using made it possible these animals’ milk production in 4,3% to increase. The thistle seeds’ feed additives producing, so and biologically active components on the farms can be carried out.