To mix Corid for chickens, dissolve 1.5 teaspoons of the powder in 1 gallon of water, and provide this solution as their only water source for 5-7 days.
Corid (amprolium) is the most effective treatment for coccidiosis in chickens. This parasitic disease causes bloody diarrhea, weight loss, and can be fatal if untreated. Proper mixing and dosing is critical for success.
What is Corid and How Does It Work?
Corid contains amprolium, which mimics thiamine (Vitamin B1). Coccidia parasites require thiamine to survive. Corid blocks thiamine absorption, starving the parasites without harming your chickens.
It’s safe for laying hens with no egg withdrawal period according to FDA guidelines. For meat birds, stop treatment 24 hours before processing.
Step-by-Step Mixing Instructions
For Severe Outbreaks (Visible Blood in Droppings)
- Mix 2 teaspoons (9.5ml) Corid per gallon of clean water
- Use as only water source for 5-7 days
- Follow with 1/2 teaspoon per gallon for 7 more days
For Moderate Cases (Diarrhea but No Blood)
- Mix 1 teaspoon (4.75ml) Corid per gallon
- Treat for 5-7 days
For Prevention (After Exposure or High Risk)
- Mix 1/2 teaspoon (2.4ml) per gallon
- Use for 21 days continuously
Critical Treatment Tips
Water Management
Change medicated water daily. Remove all other water sources including puddles. Calculate daily water needs – chickens drink about 1 pint per day in moderate weather.
Nutrition During Treatment
Feed normally but avoid vitamin supplements containing thiamine during treatment. After treatment, provide vitamin-rich foods to restore gut health.
Environmental Control
Clean coops daily during treatment. Coccidia spreads through feces. Consider moving birds to clean quarters if possible.
Recognizing Coccidiosis
| Symptom | Severity Indicator |
|---|---|
| Bloody diarrhea | Severe infection |
| Pale combs | Anemia from blood loss |
| Puffed feathers | General illness |
| Reduced appetite | Advanced case |
Prevention Strategies
Coop Management
Keep bedding dry and rotate grazing areas. Coccidia thrive in damp conditions. Ensure proper coop space to prevent overcrowding.
Natural Preventatives
While not FDA-approved, many farmers use:
- Apple cider vinegar (1 tbsp per gallon weekly)
- Crushed garlic in feed
- Probiotic supplements
When to Call a Vet
Seek professional help if:
- No improvement after 3 days of treatment
- Multiple deaths occur
- You suspect secondary infections
FAQs
Can I eat eggs during treatment?
Yes. The FDA approves Corid for layers with no egg withdrawal period.
How long until I see improvement?
Most birds show improvement within 48 hours. Complete recovery takes 1-2 weeks.
Can I use Corid preventatively?
Yes, at 1/2 strength dose during high-risk periods like wet seasons or when introducing new birds.
What if my chickens won’t drink medicated water?
Try flavoring with a small amount of juice. In severe cases, vets can administer injectable amprolium.