The article presents the results of research aimed at studying the effect of technological equipment for the production and primary processing of milk on its physical and chemical parameters. In terms of bacterial contamination, better milk was obtained from a group of cows at Сommercial dairy farm (CDF) No. 7, where fine filter was used. The milk corresponded to the “Extra” grade. When cows were milked in the milking parlor at CDF No. 7, this indicator was 11.0 thousand CFU/cm3 lower (at P<0.05) compared to CDF No. 5. As a result, 74.5% of milk produced at CDF No. 5 and 84.1% of milk produced at CDF No. 7 was sold as the “Extra” grade.
The use of “protected” fats in feeding cows provides the animals with the necessary amount of energy. One of the most guaranteed sources of energy in diets and feed mixtures of cows are rapeseed products. The article presents research materials, the purpose of which was to establish the effect of a complex energy feed based on dry protected fat as part of rations for dairy cows during the period of increasing the milk yield on milk productivity and hematological parameters. Studies showed that the inclusion of energy feed based on dry protected fat in the diet of experimental animals in the amount of 3% by weight of the compound feed contributed to an increase in milk productivity by 8.1% and had a positive effect on hematological parameters.
Lack of important nutrients such as protein, macro- and microelements in diets leads to lower efficiency of feed use, shortage of a significant part of livestock products and increase in their cost. The article contains the materials of research, the purpose of which was to develop protein-vitamin-mineral supplements and to study the effectiveness of feeding them as part of grain forage to young cattle. It has been established
that the inclusion of new protein-vitamin-mineral supplements in the feed ration of animals has a positive effect on the palatability of feed, digestion processes, metabolism and animal health, as well as promotes getting average daily gain of 629-710 g with feed consumption of 8,77-9,97 feed units per 1 kg of gain and reduces feed costs by 20%.
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