Market Broiler Management Practice Test

To promote maximum feed conversion, broilers should first be exposed to what duration of continuous light?

1. 18 hours

2. 20 hours

3. 22 hours

4. 24 hours

The correct answer is: 22 hours

The duration of continuous light that is most effective for promoting maximum feed conversion in broilers is 22 hours. This extended lighting schedule helps to enhance the birds' growth rates and feed efficiency, crucial factors in broiler production. Continuous light promotes increased activity levels and feed intake, which can lead to better conversion rates of feed into body weight. Providing light for 22 hours balances the benefits of stimulation in feeding behavior with the necessity for some rest. While continuous lighting can lead to very high levels of activity and feeding, too much light without any dark period can lead to stress and exhaustion in birds, which may actually reduce overall performance. Thus, 22 hours of light is optimal for encouraging growth while allowing for some downtime. Other durations, such as 18, 20, or 24 hours, may not provide the same level of benefit. For instance, 24 hours of light could lead to fatigue without the necessary rest that broilers need, while 18 hours may not sufficiently stimulate feed intake and growth rates. Therefore, 22 hours strikes the right balance for optimal performance in broiler management.