Abstract
Background: Striped snakehead (Channa striata) is an air breathing fish with immense popularity as food. Successful breeding operation of this fish requires proper broodstock management and development of mass seed production technique. As spawning efficiency vary with species traits, climatic conditions and inducing agents for spawning, therefore, an experiment on the efficacy of two commercial GnRH based synthetic hormones viz., Gonopro-FH and OVAFISH on the induced breeding of Channa striata in captivity was conducted under agro-climatic conditions of Assam. Methods: Three doses of Gonopro-FH and Ovafish i.e. 0.40 (T1), 0.60 (T2) and 0.80 (T3) ml/kg for female and 0.3, 0.45 and 0.60 ml/kg body weight for male were administered to evaluate the efficacy. Result: Breeding aspects such as relative fecundity, fertilization rate, hatching rate, latency period and incubation period were found better with the dose of 0.45 ml/kg for male and 0.6 ml/kg for female. A higher relative fecundity was achieved by Gonopro FH administration. The results of this study may be useful in induce breeding and seed production of Channa striata.
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