1. Sheep house disinfection: 10%-20% lime milk, 10% bleaching powder, 3% risol, 5% hot grass ash or 1% aqueous carbolic acid. Disinfect each time in the spring and autumn. Can also be used alternately to kill bacteria, kill poison, and fire alkali for regular disinfection. 2. Field disinfection: 3% bleach, 4% formalin, or 5% aqueous sodium hydroxide solution. Every spring and autumn are disinfected once. 3. Garbage disinfection: Place sacks or mats immersed with 2%-4% sodium hydroxide or 10% KROLIN disinfectant at the entrance and exit. 4. Disinfection of skin and mucous membranes: 70%-75% alcohol, 2%-5% iodine, or 0.01%-0.05% solution of benzalkonium bromide is used to rub skin or mucous membranes. 5. Wound Disinfection: Wash contaminated or suppurative wounds with 1-3% gentian violet, 3% hydrogen peroxide or 0.1%-0.5% potassium permanganate solution. 6, fecal sewage disinfection: feces using biological thermal disinfection method, that is, away from the sheep's house 100 meters away from the place to pile up the manure, covering the top 10 cm thick wet soil, fermentation can be a month later. Sewage should be introduced into the sewage treatment tank, and bleaching powder or quicklime should be added for disinfection. The amount of disinfectant used depends on the amount of sewage. Generally, 2-5 grams of bleaching powder is used per litre of sewage.