Induced spawning of spotted murrel (Channa punctatus) and catfish (Heteropneustes fossilis) using human chorionic gonadotropin and synthetic hormone (ovaprim).

Induced spawning of the spotted murrel (Channa punctatus) and catfish (Heteropneustes fossilis) was successfully carried out using ovaprim and human chorionic gonadotropin (HCG). Breeders were administered a single intramuscular injection of the hormones at varying dosages. Fecundity in C. punctatus was 3273 ± 75 for ovaprim and 1253 ± 126 for HCG, whereas in H. fossilis it was 6692 ± 790 for ovaprim and 82922 ± 5432 for HCG. Successful spawning of C. punctatus was observed at 0.3 and 0.5 ml/kg body mass for ovaprim and at 2000 and 3000 IU/ kg body mass for HCG. For H. fossilis successful spawning was observed at 0.3, 0.5 and 0.7 ml/ kg body mass for ovaprim and 1000, 2000, and 3000 IU/kg body mass for HCG.