How to prevent duck flu in duck farming? Do not introduce duck seedlings from areas where duck flu occurs. Strengthen feeding and management on a daily basis, and insist on epidemic prevention and disinfection. In particular, do a good job in keeping the ducklings cold-proof and warm to enhance the bodys disease resistance of the ducks. To prevent the occurrence of this disease. The following is a simple drawing of a duck brought by the editor. I hope it will be helpful to you.