The influence of biological products on the reproductive and productive qualities of cows

A method of strengthening the nonspecific resistance of the organism of pregnant cows with biological preparations for the prevention of diseases of the postpartum period and the realization of the biological resource of reproductive qualities is proposed. It was found that in the cows of the control group, the afterbirth separation time averaged 11.9±0.97 hours, versus 7.3+0.45 and 5.9+0.63 hours in the 1st and 2nd experimental groups, and it turned out to be less by 4.6 and 6.0 hours, respectively. In cows of the 2nd experimental group, the timing of the onset of the first sexual hunt was shorter (27.9±0.63 days) by 6.1 days compared to the 1st experimental group (34.0±0.63 days) and by 13.9 days compared to the control (41.8±1.59 days). A decrease in the insemination index of cows of the 1st (1.9±0.25) and 2nd (1.4±0.38) experimental groups was found compared with that in the control (2.3±0.37). The duration of the service period in the cows of the control group was equal to 88.9±2.96 days, which is also 23.6 days longer than in the cows of the 1st experimental group (65.3±1.72 days), and 30.8 days longer than in the 2nd experimental group (58.1±1.47 days). The use of ASD-F2 with eleovit and a new generation biological product in experimental cows contributed to the improvement of organoleptic, physico-chemical and microbiological parameters of milk.