Market Broiler Management Practice Test

What carcass downgrade can result from an incorrect lighting program during broiler grow-out?

1. Souring

2. Bruising

3. Scratching

4. Dehydration

The correct answer is: Scratching

An incorrect lighting program during broiler grow-out can lead to scratching, which is a significant concern in poultry production. Lighting plays a crucial role in broiler behavior and welfare. If the lighting is not properly managed—whether it is too bright, too dim, or poorly scheduled—it can lead to increased stress and aggressive behaviors among the birds. When broilers are unable to adapt to the lighting conditions, they might begin to engage in scratching behavior that can cause physical injury to themselves and their flock mates. This behavior often results from boredom, lack of stimulation, or an unnatural environment, leading to a higher incidence of scratches on the carcass during processing. These scratches not only affect the appearance of the meat but can also lead to downgrades in the product grade, impacting overall marketability. Understanding the significance of appropriate lighting schedules and conditions is vital for preventing such carcass downgrades and ensuring the birds remain calm and stress-free throughout their grow-out period.