RT - Journal Article T1 - Annual cycle of ovarian development and sex hormones of grey mullet (Mugil cephalus) in captivity JF - IFRO YR - 2012 JO - IFRO VO - 11 IS - 3 UR - http://jifro.ir/article-1-639-en.html SP - 693 EP - 703 K1 - Mugil cephalus K1 - Ovarian development K1 - Sexual steroid hormones K1 - Captivity AB - The grey mullet fingerling were imported to Iran in 1997 from Hong Kong and in coastal fish pond of north part of Iran were successfully cultured in order to obtain broodstocks and induce artificial reproduction. Seasonal changes in serum concentrations of Testosterone, 17-β Estradiole (E2), 17-α Hydroxy Progesterone and also the level of calcium, Triglyceride and cholesterol in females grey mullet in captivity were measured by Radioimmunoassay or colorimetry, respectively. Investigating of sex steroids in different sexual maturity indicated that increasing of oocyte diameter and sexual maturity development serum testosterone was increased significantly (P LA eng UL http://jifro.ir/article-1-639-en.html M3 ER -