The Effect of the Organic Complex on the Productivity and Quality of Cows Milk
The results on the use of a new supplement based on soy protein hydrolyzate, vitamins and microelements in the organic complex in the technology of feeding cows are given. The study of the use effectiveness in the rations of dry and lactation animals was carried out on full-grown Holsteinized Simmental cows using the group method. A supplement (100 ml per 1 head three weeks before calving and within 30 days after calving) was added to the main ration to the animals of the experimental group by the irrigation method. Inclusion in the diet of highly productive cows of the organic complex allowed increasing the milk productivity during the base period by 14.9% and improving the physico-chemical properties of milk. The researches have shown that the highest levels of dry matter and its components with the exception of lactose were observed in the milk of experimental cows. According to these indicators the milk of the experimental group of cows differed in dry matter content by 0.3%, nonfat milk solids - by 0.4%, fat - by 0.34%, protein - by 0.04%. At the same time the costs of metabolic energy and digestible protein for the production of 1 kg of milk decreased by 12 and 10%, respectively. The economic effect from the use of the organic complex in a dose of 100 ml per head of lactating cows was 7130 rubles on one animal. The results of the carried researches indicate the objective applicability of the supplement from soy protein hydrolyzate, vitamins and microelements to cows in the final dry period as well as during the DIM in order to increase milk productivity and quality of milk.