In the layer variety of poultry , strong

Options

A. muscular system is present
B. digestive system is present
C. reproductive system is present
D. excretory system

Answer

**Step-by-Step Solution:**

1. **Understanding Layer Poultry**: The layer variety of poultry refers to female birds that are primarily bred for egg production. Their main purpose is to produce eggs commercially.

2. **Identifying the Systems**: The question asks which system is more developed in layer poultry. The options given are muscular system, digestive system, reproductive system, and excretory system.

3. **Focus on Egg Production**: Since the primary function of layer poultry is to produce eggs, the reproductive system is crucial. The reproductive system must be well-developed to ensure a high rate of egg production.

4. **Eliminating Other Systems**:
- **Muscular System**: While a strong muscular system is important for overall health, it does not directly impact egg production.
- **Digestive System**: A healthy digestive system is necessary for nutrient absorption, but it is not the primary focus for egg-laying.
- **Excretory System**: This system is important for waste removal but does not play a role in egg production.

5. **Conclusion**: The reproductive system is the most developed system in layer poultry as it directly relates to their ability to produce eggs commercially. Therefore, the answer to the question is the reproductive system.

**Final Answer**: The reproductive system is the most developed in the layer variety of poultry.

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