[1] Birmingham City University,Physiology Division
[2] Polish Academy of Sciences,Institute of Genetics and Animal Breeding
[3] Universidad Autónoma Agraria Antonio Narro,Ministry of Science & Technology, Animal Resources Research Corporation
[4] Ecole Supérieure d’Agriculture de Mograne,Department of Poultry, Faculty of Agriculture
[5] Wild Life Research Centre,undefined
[6] Zagazig University,undefined