Research Article
Performance, Egg Quality and Mineral Utilization of Dokki-4 Laying Hens Fed Diets Containing Three Levels of Nonphytate Phosphorus in Absence or Presence of Microbial Phytase, Citric Acid or Both
Department of Poultry Production, Faculty of Agriculture, Mansoura University, Egypt
F.S.A. Ismail
Department of Poultry Production, Faculty of Agriculture, Mansoura University, Egypt
R.A. Hassan
Animal Production Research Institute, Agriculture Research Center, Ministry of Agriculture, Egypt
Ebtehal A.H. Abo Ahmed
Animal Production Research Institute, Agriculture Research Center, Ministry of Agriculture, Egypt