Study of Some Gonadic Growth Index of Great Sturgeon (Huso Huso) Cultured in Brackish Water Condition (original) (raw)

HEDAYATI, S. A. A., V. YAVARI, M. BAHMANI, M. ALIZADEH and T. BAGHERI, 2008. The study of some gonadic growth index of great sturgeon (Huso huso) cultured in brackish water condition. Bulg. J. Agric. Sci., 14: 93-99 Recognition of Gonadic feature in sturgeons is important for caviar production, early maturity and recruitment. The aim of this investigation was to examine effect of different content of food, Somatic growth and blood parameter on Gonadic growth. Four diets with constant protein (%40) and different energy content (400,425,450,475 kg/100g) was fed to 74 Grate sturgeons (4-5 years old) cultured in brackish water pools in Bafgh-IRAN. every three month we biometry fishes, Blood sampling was performed in caudal vein and plasma was frozen until future analyses, Glucose was measured with Authoanalyser, calcium and magnesium with spectrophotometer and so- dium and potassium with film photometer, Hormone profiles measured by Radio Immunoassay. Histological preparation was staine...