Abstract: A method, composition and containerized product for use in preventing the disease of mastitis in dairy cows and other animals. The invention employs a homogeneous disinfectant composition in the form of an aerosol spray which applies disinfectant to the teat while at the same time chilling the teat, particularly at the lower end where the teat sphincter muscle is located. Use of the present disinfectant composition, which contains an aerosol propellant such as dimethyl ether, results in chilling temperatures of about 25.degree. to 35.degree. F. being attained on the exterior surface and orifice end of the teat. By such treatment, the teat sphincter is caused to contract and close the teat orifice, thus reducing the incidence of infection.

Abstract: A method, composition and containerized product for use in preventing the disease of mastitis in dairy cows and other animals. The invention employs a homogenous disinfectant composition in the form of an aerosol spray which applies disinfectant to the teat while at the same time chilling the teat, particularly at the lower end where the teat sphincter muscle is located. Use of the present disinfectant composition, which contains an aerosol propellant such as dimethyl ether, results in chilling temperatures of about 25.degree. to 35.degree. F. being attained on the exterior surface and orifice end of the teat. By such treatment, the teat sphincter is caused to contract and close the teat orifice, thus reducing the incidence of infection.