RELATIONSHIP BETWEEN ANIMAL PRODUCTIVITY AND CONTENT OF SOME MACRO- AND MICROELEMENTS IN DIFFERENT FRACTIONS OF COW'S BLOOD BY ASSIGNMENT OF FEED ADDITIVE GERMATZINK
The high productivity of dairy cattle, while keeping the ability to adapt and ensure the basic physiological functions of the body, creates the conditions for profitable milk production and efficient animal usage. The development and implementation of selective improvement of breeds and types methods requires the study of biological features of cattle, adaptive parameters of its productive potential. The studies were conducted on the farm of Vinarivka village of Kyiv region. The types of HNA were determined by the method of food conditioned reflexes. Four experimental groups were formed by the results of the conditioned reflex study. The cows of the experimental group feed additive “Germatsink” was applicated at a dose of 10 ml/day within 30 days. Animals in the control groups (with different types of higher nervous activity) received a standard diet. The goal of the study was to determine the correlation between productivity and the content of some macro- and microelements in the serum and blood cells of cows after feed additive “Germatsink” application. Studies have shown that Germatsink application leads to changes in the relationship between productivity and the content of some minerals in the cows’ serum. However, there was weak correlation between phosphorus and calcium in the serum and average daily yield (r = 0.41; p <0.05), and significant relationship to the content of potassium, magnesium and lithium is disappear. It was found strong correlation between content of potassium, magnesium and cuprum in serum and fat content of milk of these animals.
In 30 days after Germatsink was administered, the calcium (r = -0.48; P <0.01) and Zinc (r = 0.39; P <0.05) content was related with milk yield in cows. It was noted a change in the relationship between the quality of milk and the content of some elements in the blood cells of cows. In particular, increase of relationship between content of magnesium (r = 0.52; P <0.001), zinc (r = 0.48; P <0.01), cooper (r = 0.38; P <0.05) and fat content of animal’s milk.
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