Performances of FS feed, Artemia nauplii and commercial diet on early development of Clarias gariepinus larvae
2022
Fadhil Syukri | Nadiatul Hafiza Hassan | Siti Nor Ani Azaman
Live feed is often used as natural diets for fish larvae in aquaculture. Live feed contains various nutrients such as essential proteins, lipids, carbohydrates, vitamins, minerals, amino acids, and commonly known as living capsules of nutrition. However, live feed requires high cost in maintenance and the production of live feed, such as Artemia sp., is limited nowadays. This study investigates the growth performance, survival, and feed utilization of C. gariepinus larvae fed on two artificial diets and Artemia nauplii. The feeding trials had started at the onset of exogenous feeding for 21 days. A total 540, threeday old larvae were fed one of three feeding treatments, where each trial had triplicates of: (1) FS feed; (2) Artemia nauplii; and (3) commercial feed. The FS Feed was formulated by UPM researchers as an alternative to live feed. The study showed that no significant differences were noted in the specific growth rates (SGR) from the three feeding trials. FS feed showed the lowest feed conversion rate (FCR) at 0.61 as well as significantly the lowest feed consumption by the larvae, 4.92 ± 0.82 (P<0.05) compared to other feeds. Furthermore, larvae survival after 21 days was significantly higher (51.67 ± 3.85) (P<0.05) in C. gariepinus larvae fed on FS feed (51.67 ± 3.85) and Artemia nauplii (43.89 ± 4.55) than commercial feed. This study focuses on the potential of the FS feed as live feed replacement for improving the survival of fish larvae. Since it is a formulated larval diet, the FS feed could also reduce the chances to transmit diseases to larvae when compared to live feed.
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