Effect of carotenoid pigments from water spinach (Ipomoea aquatica) leaves on the growth, survival and skin coloration of Nile tilapia (Oreochromis niloticus) fry [manuscript]
Date
2018
Authors
Patricia Anne G. Tomas
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Abstract
The 30-day-feeding experiment was conducted to evaluate the effect of carotenoid pigments from water spinach (Ipomoea aquatica) leaves on the growth, survival and skin coloration of Nile tilapia fry cultured in aquaria. The study had three treatments with three replicates namely: Treatment 1 - control commercial feeds, Treatment II - commercial feeds with 500mg of carotenoid pigments from water spinach leaves, Treatment III - commercial feeds with 1000mg from carotenoid pigments of water spinach leaves. Results of the study showed that Nile tilapia in Treatment III had the highest final weight, gain in weight and specific growth rate. Analysis of variance revealed that final weight and gain in weight if Nile tilapia in Treatment III were significantly higher than those in Treatment I and II. Nile tilapia in Treatments II and III had significantly darker skin coloration than those in Treatment I.