1. Department of Animal Science; College of Agriculture; Shiraz University; Shiraz Iran
2. Transgenic Technology Research Center; Shiraz University of Medical Sciences; Shiraz Iran
3. Histomorphometry and Stereology Research Center; Shiraz University of Medical Sciences & Department of Anatomical Sciences; School of Medicine; Shiraz University of Medical Sciences; Shiraz Iran
4. Department of Biology; Waseda University; Shinjuku-ku Japan
5. Unité Mixte de Recherche; Physiologie de la Reproduction et des Comportements; Institut, National de la Recherche Agronomique; Nouzilly France