earticle

영어

This study investigated gametogenesis, gonadal development, reproductive cycle in cultured Takifugu rubripes. Fish at SAJO CS Co., Ltd. 1-3 year old were sampled from July 2003 to June 2004. The gonadosomatic index (GSI) of male and female reached maximum values of 11.91±3.01 and 3.23±2.61 in April, respectively. The hepatosomatic index (HSI) of male reached a maximum of 13.80±1.32 in May and that of female reached a maximum of 14.60±1.08 in June. The reproductive cycle could be divided into following successive stages in the ovary: growing stage (July to June), mature stage (November to April), and degenerative stage (April to July). Likewise, in the testis, the following stages were observed: growing stage (July to March), mature stage (November to June), spent stage (February to July), and degenerative and recovery stage (May to August).