Emelyanova A., Lupova E.

Interrelation of change of milk yields and the transferred stress at cows of first lactation at use of amber acid

Studied the variation of the dairy efficiency of cows of first lactation at influence on them of acute stress, with application and without application of the preparation of succinic acid. Assessment of the functional reserves of the organism is performed on the basis of the comparison of the two parameters – the level of functioning of cardiovascular system and the degree of tension of regulatory systems. The conducted researches have shown that use of amber acid for the cows of first lactation having sharp stress, has favorably affected indicators of milk yields. At cows of first lactation of investigated group of sharp decrease in milk yields of milk it is not observed.

Keywords: HEART RHYTHM VARIABILITY, AUTONOMIC TONUS, FUNCTIONAL RESERVES, REGULATION PROCESSES ADEQUACY, SUCCINIC ACID, MILK YIELD, STRESS