EFFECT OF NATURAL FEEDS ON THE GROWTH PERFORMANCE, SURVIVAL RATE AND FEED UTILIZATION OF THE TROPICAL SHORTFIN EEL ANGUILLA BICOLOR McClelland 1844 (PISCES: ANGUILLIDAE) LARVAE.

Yanti, Riska Zulinda; Muchlisin, Zainal A.; Nur, Firman M.; Irham, Muhammad; Batubara, Agung Setia; Muhammadar, Abdullah A.; Fadli, Nur

The high mortality of eels larvae usually occurs during the acclimatization process before growth, probably due to the unsuitable feed intake. Therefore, this study aimed to find suitable natural feed for tropical shortfin eel Anguilla bicolor larvae. The complete randomized experimental design with four treatments and four replications was used. Four natural feeds were tested, namely bloodworm Tubifex sp., golden apple snail Pomacea canaliculata, sardine fish Decaptersus macarellus, and sergestid shrimp Acetes sp. The initial total length and body weight of the samples were 5.0-7.0 cm and 0.15-1.78 g, respectively, while the experimental fish was reared at a density of 10 fish tank-1. The eel larvae were raised in plastic containers volume 22 L, while natural feeds were given at a feeding ration of 10% body weight a day for 60 days. The results showed that the natural feeds produced significant effects (P < 0.05) on weight gain, specific growth and survival rate, as well as feed efficiency and conversion ratio. The sardine feed yielded a better result compared to other tested feeds, but the values were not significantly different from bloodworm. Based on the results, sardine fish and bloodworm feed are suitable for eel A. bicolor larvae.

SURVIVAL rate; LARVAE; BODY weight; SARDINE fisheries; FISHES

Polish Journal of Natural Sciences, 2022, Vol 37, Issue 3, p381

1643-9953

Academic Journal

10.31648/pjns.7922