Abstract
Introduction to the diets of sheep-producers of wool (Jalgin merino) and meat-wool directions (Russian meat merino) productivity in the non-breeding and breeding period of the feed additive «corn Gluten» in the amount of 28 and 56 and 28 and 66 g per unit per day contributes to an increase in crude and digestible protein by 5,0 and 10,0 %, lysine by 1,52 and 3,0 %, methionine with cystine – by 5,2 and 12,7 %. In addition, the digestibility of dry matter of the diet (in the non-breeding period) is significantly increased by 3,85-6,74%, by 13,4-15,11% – raw protein, by 3,19-5,03% – raw fat, by 5,92-7,21% – raw fiber, as well as nitrogen-free extractive fraction – by 1,90-3,52%. Feed additive «corn Gluten» promotes a significant increase in the volume of ejaculate in breeding period by 2,45,7% and 2,8-7,0%, sperm activity and an indicator of resistance to 0,3-0,6 and 0,5-0,6 points and 450-800 units, sperm concentration – by 1,7-3,0 and 1,7-3,5 %, ewes’ fertility – by 3,0-5,0 and 2,0-3,0 %. The additional income from the sale of sperm products with an increase in the protein level in the diets of sheep-producers Jalgin merino and Russian meat merino by 5% is 3,63-4,32, and by 10 % – 8,20-10,26 thousand rubles.
Highlights
Sheep breeding has historically been practically the only source of such important products as wool, meat, milk, lamb pelts, fur and fur sheepskins
Studies on the need for protein nutrition of sheep-producers of wool (Jalgin merino) and meat-wool (Russian meat merino) areas of productivity when feeding a feed additive «corn Gluten» were held in agricultural production cooperative « Plemzavod Vtoraya Pyatiletka», Stavropol region
Sheep-producers of experimental groups II and III were set on a diet including «corn Gluten» in the amount of 28 and 56 g per unit per day in a non-breeding period, the content of raw and digestible protein increased by 5,0 and 10,0 %, lysine by 1,41 and 3,7%, methionine with cystine – by 6,1 and 13,0 %
Summary
Sheep breeding has historically been practically the only source of such important products as wool, meat, milk, lamb pelts, fur and fur sheepskins. Improving the efficiency of herd reproduction through the use of the most valuable pedigree producers is one of the urgent problems in sheep breeding and is of great importance for the further development of the industry [5,6,7,8]. This is closely related to providing animals with complete feeds that would satisfy the need for all nutrients [9,10,11,12].
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