|| Disinfection of the udders. One of the best preventions to control the mamitis.It is done before and after milking the cow. How the disinfection is carried out. Methods products and utilization.Five types of products: iodine products, ammonium quaternario compounds, clorexidine, hypocloride and DDBS.Three objectives must be attained: to kill the bacteria, to kill the bacteria in the udder wounds, and to cure the skin of the udder.The bacteria could remain in the milking machinary and could contaminate seven or eight cows.The products should be applied as soon as possible after taking off the tit holder and take advantage of the fact that the tit is still open so that the product gets inside it.The third aim of the product is to cure the skin of the udder. This skin is very dry as there are no glandular sebaceous. The products contain substances to treat the skin.