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Experiments on the study of preclinical evaluation of disinfectants based on chlorhexidine bigluconate hydrochloride / aloe tree oil (CGB aloe) and polyhexamethylene biguanide hydrochloride / eucalyptus oil (Teasfoam Supercow) showed their low hazard when exposed to warm-blooded animals. Disinfectants are assigned to the fourth hazard class according to GOST 12.1.007-76. The concentration of  Staph. aureus, Strep. agalactiae  was lower when teats were immersed in Teasfoam Supercow disinfectant solution before and after milking, compared to untreated teats. It is concluded that the application of CGB aloe is very efficient against  Staph. aureus, Strep. Agalactiae, E. coli  and  Strep. uberis . Based on the results of scientific and economic experience, it can be concluded that controlled disinfection of the udder teats with a disinfectant CGB aloe before and after milking cows with high milk yield does not prevent udder teat hyperkeratosis in 2.4% of animals. In addition, subclinical mastitis is diagnosed in 12.1%; 3.3% of cows during the disinfection of the udder teats with Teasfoam Supercow were diagnosed hyperkeratosis of the udder teats. Another 12.9% of animals had subclinical mastitis. Udder teats of control animals were not disinfected. Udder hyperkeratosis was diagnosed in 5.4% of cows. Another 26.5% of the animals fell ill with subclinical mastitis. In cows, after controlled disinfection of the udder teats, an increase in milk production by 1-2 liters was observed. No color, taste or odor changes were observed in the milk. It has been proven that teats disinfection reduces the number of bacteria on the teats skin, improves the sanitary milk quality and its manufacturability.

Milk quality and its technological suitability for processing after the disinfection of the udder teats in cows