Induced breeding and embryonic development of an indigenous fish Bangana dero (Hamilton) in captivity using wova FH

Abstract

Bangana dero (Hamilton) is one of the most popular indigenous minor carps in the north eastern states of India. Induced breeding of B. dero was conducted by using Wova-FH in different doses @ 3.0ml, 5.0ml and 7.0ml per kg of female brooders in sets A, B and C respectively. All the males in each set were given similar dose @ 0.2ml/kg body weight. The fishes were spawns in different latency period i.e., 7 to 10 hours at 26°C. Fertilized eggs were hatched out after 12-18 hours of fertilization at 25.2-26.8°C. Stages of embryonic development were discussed in detail. Statistical analysis was worked out to determine the relation between the hormone dosage with egg output, fertilization rate and hatching rate. The highest number of egg output (17,790 eggs), fertilization (87.33%) and hatching rate (87.73%) were found in fish with hormone @ 0.5ml/kg female and significantly higher (P