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Quick answer: Coccidiosis is a common, costly intestinal disease of poultry caused by Eimeria parasites that damage the gut lining, leading to blood-stained or watery droppings, poor growth, huddling and, in severe outbreaks, sudden deaths. It spreads through litter contaminated with droppings and hits fast-growing broilers hardest, usually between three and six weeks of age. Good litter and biosecurity management, an appropriate anticoccidial or vaccination programme, and strong gut health prevent most losses — treat active outbreaks promptly under veterinary guidance.
Coccidiosis is caused by microscopic Eimeria parasites that invade and destroy the cells lining the intestine. The damage reduces nutrient absorption, wrecks feed conversion and opens the door to secondary infections such as necrotic enteritis. For Indian broiler and layer farmers it is one of the most economically important diseases, causing stunted growth, uneven flocks, higher mortality and reduced egg production.
Bloody droppings and a spike in deaths are red flags that need a quick diagnosis and treatment decision from a poultry veterinarian.
Birds pick up the parasite by pecking litter contaminated with infective oocysts from droppings. Warm, damp, caked litter lets oocysts survive and multiply, which is why outbreaks follow wet litter, overcrowding and poor ventilation. A small level of exposure builds immunity, but a heavy challenge overwhelms the gut and causes disease.
Keep litter dry and friable, fix leaking drinkers, avoid overcrowding, and ensure good ventilation. Remove caked litter regularly and clean and dry the house between flocks to break the parasite cycle.
Most commercial flocks rely on in-feed anticoccidials (coccidiostats) or coccidiosis vaccines. Follow your veterinarian's programme, observe withdrawal periods, and rotate or shuttle products only on professional advice to reduce resistance.
A healthy gut resists coccidial challenge and recovers faster. Probiotic and herbal gut-support supplements help maintain beneficial microflora, litter quality and intestinal integrity — MAKAMS Diagut supports gut health and helps control non-specific diarrhoea in poultry. Because coccidiosis and its treatment are stressful, natural vitamin C from amla, as in Naturcee, supports immunity and helps manage stress. For the wider picture, read our guide on gut health in poultry. These supplements support, but do not replace, an anticoccidial programme and veterinary care.
Most commonly between about three and six weeks of age, when maternal protection has waned and birds are exposed to litter oocysts. Good early management is critical.
Blood in droppings strongly suggests caecal coccidiosis, but necrotic enteritis and other conditions can look similar. A veterinarian should confirm the diagnosis, often by post-mortem and dropping examination, before treatment.
Strict litter management, biosecurity, correct stocking density and good gut health reduce the risk substantially, and vaccines are an option, but most farms still need a planned anticoccidial or vaccination programme. Discuss the right approach with your vet.
This article is for general educational purposes and is not a substitute for professional veterinary advice. Always consult a qualified poultry veterinarian for diagnosis and treatment.
