Poultry Judging Practice Test

Which layer of the skin in poultry is responsible for the formation of feathers?

1. Dermis

2. Subcutaneous layer

3. Hypodermis

4. Stratum corneum

The correct answer is: Dermis

The dermis is the layer of skin in poultry that plays a crucial role in the formation of feathers. This layer contains various structures, including blood vessels, nerves, and connective tissues, which provide essential nutrients and support to feather follicles, allowing for proper feather growth. Feathers develop from specialized epidermal structures that originate in the dermis. The feather follicles are embedded in this layer, with the dermis providing the necessary blood supply and environment for the formation of feathers throughout the life of the bird. Understanding this process is significant in poultry management and breeding, as the quality and health of feathers are essential for a bird's insulation, protection, and overall well-being. The other layers mentioned do not directly contribute to feather formation. The subcutaneous layer primarily serves as a fat storage area and insulation, while the hypodermis functions similarly by connecting the skin to underlying tissues. The stratum corneum is the outermost layer of the epidermis, providing a protective barrier but not directly involved in feather development. Hence, the dermis is correctly identified as the layer responsible for feather formation.