CHANGES IN SCAR METABOLISM AND FEED CONVERSION IN DAIRY COWS OF ZEOLITE TOP DRESSING

Abstract

To improve the mineral and vitamin nutrition, the diet of dairy cows was enriched with a zeolitechlorella supplement of 28-29% zeolite, 1.5-2% Clorerlla vulgaris powder and 75-76% sunflower cake. This
shifted the acidity of the rumen contents of cows of the experimental group to pH = 6.17 from pH = 6.14 in
cows of the control group, which stimulated the development of microflora and led to increased synthesis of
volatile fatty acids from 6.12 ± 0.6 to 6.91± 0.25 or 0.8 m Mol/100ml with a predominance of specific volume
of acetates. An increase in the number of infusoria by 41.1 thousand/ml. increased the synthesis of microbial
protein to 94.8% versus 87.5% and increased the amylolytic and 2.8% cellulolytic activity of the scar chyme
by 2.8 mg/starch. Improvement of cicatricial digestion increased the intake of dry matter of diets by dairy
cows from 19.02 to 19.50 kg/head/day and increased the average daily milk yield from 13.06 to 14.20
kg/head and improved the quality of milk. The increase in milk biosynthesis increased the degree of
utilization of the consumed nutrients with a decrease in the conversion rate from 1.45 to 1.37 in the cows of
the experimental group compared to the cows of the control group and an increase in the conversion rate from 0.68 to 0.72. Zeolite-chlorella supplement in the diets of dairy cows increased their mineral and vitamin
nutrition, increased the metabolism of the rumen and increased the conversion of nutrients consumed feed.