Which of the following disease is caused by a protozoan Eimeria in fowls resulting in bloody diarrhoea?

Options

A. Fowl cholera
B. Coccidiosis
C. Thrush
D. Ranikhet

Answer

**Step-by-Step Solution:**

1. **Identify the Protozoan**: The question specifically mentions the protozoan Eimeria. It is important to recognize that Eimeria is a genus of protozoan parasites.

2. **Understand the Disease**: The disease caused by Eimeria in fowls is known as coccidiosis. This is a common disease in poultry and is characterized by various symptoms, including bloody diarrhea.

3. **Differentiate from Other Diseases**: The question provides options, including fowl cholera. It is essential to note that fowl cholera is caused by a bacterium (Pasteurella multocida) and not by a protozoan like Eimeria.

4. **Conclude the Answer**: Since Eimeria causes coccidiosis, which results in bloody diarrhea in fowls, the correct answer to the question is coccidiosis.

**Final Answer**: Coccidiosis

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