Market Broiler Management Practice Test

Research indicates that lighting programs which include _____ hours of continuous darkness will improve the development of the immune system in broilers.

1. 4

2. 5

3. 6

4. 8

The correct answer is: 6

The reason why six hours of continuous darkness is beneficial for the development of the immune system in broilers is rooted in the natural behavioral and physiological responses of poultry. Research indicates that dark periods in lighting programs help to reduce stress and promote rest, leading to improved growth and health outcomes. During periods of extended darkness, broilers can experience a reduction in activity and stress levels, allowing their bodies to allocate energy towards essential functions such as immune system development. The immune system requires certain biological processes to be optimized, and uninterrupted darkness can aid in this process by promoting the production of immunoglobulins and other immune-related factors that assist in disease resistance. Therefore, incorporating six hours of continuous darkness into the lighting program can create a more favorable environment for broilers, ultimately enhancing their overall health and well-being. This understanding is critical for effective market broiler management, as it aligns lighting strategies with animal welfare and production efficiency.