“Silence in the poultry house please”

In poultry production, performance parameters are usually related to regular factors such as health and nutrition. Exposure to environmental noise should not be underestimated either, however. Birds don’t like noisy conditions and tend to perform less.   By Dr Salah H. Esmail, Cairo, Egypt The noise intensity associated with any power source in a farm is best measured in decibels (dB) using a sonometer. Given in Table 1 are the permissible noise levels and the allowable durati