| Summary: | Studies of the last decades have shown a leading role of cerebral cortex in animal lactation, as a higher regulatory center that directs and corrects the activity of all organs and the body. The research was conducted on the farm of Vinarivka village of Kyiv oblast. The types of HNA were determined by the method of food conditioned reflexes. According to the results of the study of conditioned reflex activity, four experimental groups were formed. The cows of the experimental group received the feed additive “Germatsink” 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 level of cows’ productivity depending on the types of higher nervous activity and the autonomic nervous system using the feed additive “Germatsink”. Studies have shown that application of feed additive “Germatsink” leads to an increase in average daily milk yield in cows of strong types of higher nervous activity by 1.8–4.4 %, and in animals of weak type – by 13 %. In cows with a strong balanced inert type dairy productivity was lower – 26.4±1.3 kg/day, whereas in cows with a strong unbalanced and weak types of higher nervous activity it was significantly lower by 18.8 % and 37.2 %, respectively, in comparison with the indicators in animals of a strong balanced mobile type.
It was found that in cows with predominance of the sympathetic division of the autonomic nervous system tone, the average daily yield was 20.7±1.9 kg/day, which is lower by 20.1 % and 24.5 % in comparison with animals of normo- and vagotonics.
The study found that the main characteristics of nerve processes were correlated with cows’ productivity. It was noted that the strength of the nervous processes was directly related to the average daily yield than to its fat content. The cows’ milk production, both in qualitative and quantitative indices, depends on cortico-vegetative regulatory mechanisms, particularly, the strength, balance and mobility of the nervous processes of excitation and inhibition of the nervous system and the tone of the autonomic nervous system.
|
|---|
