Abstract: The present study was carried out on 82 samples of claries gariepinus, 72 Mature female and 10 immature females. About 6 fishes of mature female catfish nearly 600- 700 gm in weight and 40-45 cm in length were collected monthly throughout the year from the Nile River, crossing Sohag city in Egypt, during the year 2011-2012 to elucidate the ... إقراء المزيد