Abstract:Lamb dysentery is a bacterial intestinal disease, mainly caused by E. coli, Salmonella, Clostridium perfringens and Enterococcus. The pathogens enter the animal body through the oralpharyngeal route and are excreted with feces, causing intestinal inflammation and massive discharge of pathogens, which can also lead to severe diarrhea and gastrointestinal discomfort. With the increase in sheep farming scale and stocking density, the incidence of lamb dysentery is gradually increasing, causing serious damage to their lives and health, and must be highly valued.