Breeding and Seed Production of <i>Labeo gonius</i> (Hamilton) under Captive Condition in Manipur

Abstract

Induced breeding of the Indian medium carp, Kuri (Labeo gonius) (Ham.) was conducted using synthetic hormone, Ovaprim at three dose levels of 0.7, 0.5 and 0.3 ml/kg to female and 0.3, 0.2 and 0.1 ml/kg to male body weight, respectively. The brooders were injected and left to spawn in the breeding hapa at a sex ratio of 2:1 (male: female). It was found that all the doses of Ovaprim could induce the fishes to breed, whereas no breeding was observed in control set. The latency period was found to be 8-9 hours. The egg output/female was highest at a dose of 0.5 ml/kg of female and 0.2 ml/kg of male body weight. The relative fecundity of the species ranged between 90-110 eggs/gram body weight of female. Fertilization and hatching rate was found to be 89.3±2.50 and 85.2±2.30%, respectively with Ovaprim dose of 0.5 ml/kg of female and 0.2 ml/kg of male body weight.