Lifanova Y.V. 1
1 FGBOU VPO «Bryansk state agricultural Academy» (243365 Bryansk region
Found that calves kept on the farm with high soil contamination density of 137Cs decreased activity of protective mechanisms compared with the same animals in a clean area, mainly due to the low phagocytic activity of blood neutrophils. It is established that the daily watering to calfs of 5-week age within 21 days of a probiotic of «Tetralaktobakterin» gave a goal in a dose of 1 g to increase of activity of protective mechanisms of an organism of calfs, promoted increase of an adaptation reserve of number of neutrophils of the blood capable to absorption of an alien material, a month after finishing the medication administration.