Clopidol is primarily used as a coccidiostat in poultry farming to prevent coccidiosis, a parasitic disease affecting the intestinal tract of birds. It works by inhibiting the growth and reproduction of coccidia parasites, especially Eimeria species, during the early stages of their life cycle. This helps maintain bird health, improve feed efficiency, and support weight gain in broilers and other poultry. It is commonly included in feed formulations at low concentrations for prophylactic use. Due to the risk of resistance development, its use is often limited to specific growth phases and rotated with other coccidiostats. Regulatory guidelines typically restrict its use in food-producing animals close to slaughter to avoid residues in meat and eggs.