1. Department of Animal Production and Breeding, College of Agriculture and Veterinary Medicine Qassim University Buraydah Al‐Qassim Saudi Arabia
2. Department of Poultry Production, Faculty of Agriculture Ain Shams University Cairo Egypt
3. Department of Mechanical Engineering, College of Engineering Qassim University Buraydah Al‐Qassim Saudi Arabia
4. Agriculture Research Centre Animal Production Research Institute Giza Egypt