Stocks of the great sturgeon, Huso huso (Linnaeus, 1758) are highly decreased in the Caspian Sea. Results of the present study about cultured H. huso in brackish water earthponds of Bafq in center of Iran showed mean length and weight of the female samples were significantly increased during the three-year breeding period, by HSD Tukey test (p<0.0005). Sex detection of the samples was performed using ultrasonography and laparoscopy methods. Laparoscopic biopsy and microscopic study of the ovaries tissue showed stages II-III, III and atretic follicles in different studied ovaries.
As stocks of the great sturgeon, Huso huso (Linnaeus, 1758) are highly decreased in the Caspian Sea, survey about brood stocking of this fish in inland water is necessary. Results of the present study about cultured H. huso in brackish water earthponds of Bafq in center of Iran showed mean length and weight of the female samples were 1.28±0.15 m and 12.03±5.16 kg, and 1.68±0.17 m and 33.46±11.23 kg, at the first and the last month of the three-year breeding period, respectively. Mean length and weight of the samples were significantly increased during this time, by HSD Tukey test (p<0.0005). Mean±S.D values of the serum enzymes activities of H. huso samples were as: AST 502.9±258.2IU/L, ALT 104.4±35.1IU/L, LDH 3094.2±1277.5IU/L, CK 3632.9±2618.7IU/L, ALP 281.2±112.7IU/L, and ACP 13.3±2.5IU/L. Sex detection of the samples was performed using ultrasonography and laparoscopy methods. Females were tagged and stocked separately. Laparoscopic biopsy and microscopic study of the ovaries tissue showed stages II-III, III and atretic follicles in different studied ovaries.