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What is the maximum air speed allowed across the broiler at 22-28 days of age?

  1. 0.5 m/sec

  2. 0.875 m/sec

  3. 1.0 m/sec

  4. 1.5 m/sec

The correct answer is: 0.875 m/sec

The maximum air speed allowed across broilers aged 22-28 days is 0.875 m/sec. This standard is based on ensuring optimal conditions for the birds during this critical growth phase. At this stage, broilers are reaching heavier weights and their ability to dissipate heat becomes increasingly important. High air speed can lead to stress or discomfort for the birds, as well as potential impacts on their growth performance. Maintaining a controlled air speed helps to provide adequate ventilation without causing unnecessary drafts that could disrupt the birds' natural behaviors or result in increased energy expenditure for thermoregulation. Choosing this specific air speed aligns with best practices in animal welfare and overall flock health, aiming to maximize growth rates and feed efficiency while ensuring environmental conditions remain stable and conducive to the birds' needs.