In Pigeon, the milk is secreted in both sexes by which of the following glands?

Options

A. Gizzard glands
B. Liver
C. Crop glands
D. Salivary glands.

Answer

To answer the question about which glands secrete milk in both sexes of pigeons, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Context**: Understand that the question pertains to pigeons, which are birds. We need to focus on the specific glands involved in milk production in these birds.

2. **Understand Milk Production in Birds**: Unlike mammals, birds do not have mammary glands. Instead, some birds, including pigeons, produce a substance known as "pigeon milk."

3. **Identify the Glands**: The options given are:
- Gizzard gland
- Liver
- Crop gland
- Salivary glands

4. **Determine the Correct Gland**:
- The **crop gland** is responsible for producing pigeon milk. This gland is present in both male and female pigeons.
- The milk is produced from the degeneration of epithelial cells in the crop gland.

5. **Clarify Other Options**:
- The **gizzard gland** is not involved in milk production; it is part of the digestive system in birds.
- The **liver** is an organ that performs various functions but does not produce milk.
- **Salivary glands** are involved in the secretion of saliva, not milk.

6. **Conclusion**: Based on the information, the correct answer to the question is the **crop gland**.

### Final Answer:
The milk in pigeons is secreted by the **crop gland** in both sexes.

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