Milk productivity and quality depending on the composition of the diet

Abstract

Abstract The aim of the research was to study the effect of using wet feed wheat grain harvested with sodium acetate in the diets of lactating cows instead of dried grain on milk productivity and milk quality. The content of crude protein in wheat grain at the natural humidity of the experimental variant was significantly higher than in the grain storage of the control variant prepared by the traditional method of canning - fire drying. The data of the experiment on lactating cows indicated that the inclusion of wet flattened wheat grain with sodium acetate in the diet instead of dried flattened grain had a positive effect on the dairy productivity of cows and milk quality. In comparison with the control group, the advantage of cows of the experimental group in terms of the average daily milk yield was 7.8%, and in terms of fat content by 0.21% and protein by 0.04%. The consumption of energy feed units per 1 kg of natural milk in the control group of cows was 1.02 and in the experimental group - 0.95 and the tested grain fodder – 290 and 269 g. The economic efficiency of milk production in the experimental group increased by 14.5%.