Chicken raising is most afraid of chicken disease. Chicken coccidiosis is one of the most threatening diseases to chicken health. The feed for chicken feed manufacturers generally contains drugs for controlling coccidia. Therefore, chickens occur when feeding chicken feed normally. The probability of coccidiosis is small, and chicken coccidiosis often occurs when refueling chickens. The correct refueling measure during refueling is to add coccidiosis medicine to the feed medicine to prevent and cure chicken coccidiosis. Be careful not to add sulfa drugs to prevent chicken coccidiosis. Although sulfa drugs are good treatments and coccidiosis drugs, they cannot prevent coccidiosis in chickens.