Captive breeding of Striped Spiny Eel, Mastacembelus pancalus (Hamilton, 1822) considering the various hormonal responses

Abstract

The spawning performance of spiny eel, M. pancalus was investigated by using different hormones. The water quality parameters were within optimum ranges such as average temperature, DO and pH were 29.13 oC, 4.19 mg/L and 8.32 respectively. Hormones were administered into females in two doses; a lower priming dose followed a 6 h interval by a higher resolving dose. In first dose, the female were injected ovaprim, HCG and PG at 0.25 ml/kg, 200 IU/kg and 30 mg/kg of body weight respectively. The second dose was applied to both male and female and female received double amount of hormone of the first dose. The male were administered a single dose at 0.5 ml/kg, 400 IU/kg and 60 mg/kg of ovaprim, HCG and PG respectively. It is indicated that the use of ovaprim was more effective in spawning (100%), fertilization (75%) and hatching (55%) of M. pancalus compared to the other stimulators.