University Department of Zoology, Magadh University, Bodh Gaya, Bihar, India
Received : 16th November, 2021 ; Revised : 5th January, 2022
Abstract-Ornamental fish breeding is an emerging sector and can be a world scale opportunity area for fish farmers in India, especially in rural population. Larval rearing is one of the most essential criteria for any successful aquaculture. In developing countries fish seed production and larval survival is most unsuccessful due to poor nutrition of these graceful living jewels. Proper statistical analysis estimation has been done which support the management of both the rearing environment and feeding regime in order to assure productive growth and survival rate of larvae of selected ornamental fishes (Carassius auratus and Trichopodus trichopterus). Information regarding age specific food preferences of fish on different food items is deficient and survivability is also less which needs research trust for augmenting larval survival and it also heavily depends on the supply of suitable feed which should also be cost effective. The experiment was conducted to investigate the effect of alternative formulative feed on larval survival, a control diet (CD), different types of Spirulina diet (S1, S2 and S3) and experimental diets (DEF, DCF, DSF and SPF). The experiment was carried out for 20 days and the larval survival rate was calculated of two selected ornamental fishes (Carassius auratus and Trichopodus trichopterus). All the five different feeds were readily accepted from the beginning of feeding and was found to be high with SPF whereas low with CD in both the larvae of Carassius auratus and Trichopodus trichopterus. In the present investigation attempt has been made to formulate cost effective, high quality, high yielding, protein and lipid rich nutritious feed for gaining high survival and growth rate in the larvae of Carassius auratus and Trichopodus trichopterus in a healthy aquatic environment.