Vini Kristiana, ,- and Akhmad T. Mukti, ,- and Agustono, ,- (2020) Increasing growth performances of Nile tilapia (Oreochromis niloticus) by supplementation of noni Morinda citrifolia fruit extract via diet. AACL Bioflux, 13 (1). pp. 159-166. ISSN 1844-9166

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Abstract

High feed prices and its low nutritional quality are the inhibitions in the process of red tilapia fish cultivation. Therefore, the use of feed additives in feed becomes significant in order to optimize fish growth. Especially the ones made of natural ingredients, such as noni (Morinda citrifolia) fruit. The purpose of this study was to determine the effect of added noni fruit extract to the growth rate and protein retention of red tilapia fish. The method used was an experimental method with a completely randomized design, consisting of four replications and four treatments of noni fruit extract dosages given to red tilapia. The treatments used were the dosage amount of noni extraction given to red tilapia, namely P0: commercial feed as the control group without noni fruit extract + 2 g Progol (fish feed binder); P1: commercial feed 1 kg + noni fruit 100 mL kg-1 feed + 2 g Progol; P2: commercial feed 1 kg + noni fruit 300 mL kg-1 feed + 2 g Progol; P3: commercial feed 1 kg + noni fruit 500 mL kg-1 feed + 2 g Progol. The parameters observed were specific growth rates, feed conversion ratio, survival rate, and protein retention of red tilapia. The result showed that the addition of noni fruit extract in commercial feed with different doses significantly affected the specific growth rate, daily length growth rate, feed conversion ratio, and protein retention of red tilapia. The survival rate from the preservation of red tilapia is not significantly different between treatments. The best result for the specific growth rate is P3 (500 mL kg-1) of 0.0150% day-1, daily length growth rate is P3 (500 mL kg-1) of 1.599% day-1, feed conversion ratio is P2 (300 mL kg-1) of 0.846%, survival rate of 100% in all treatments, and protein retention with the best results is P1 (10 mL kg-1) of 12.6246%. The addition of noni fruit extract in commercial feed can increase the specific growth rate and daily length, lowering the value of feed conversion ratio in red tilapia, and increasing the protein retention of red tilapia (Oreochromis niloticus).

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