Abstract
ABSTRACT A six-week feeding trial was conducted to evaluate the effect of replacing fish meal (FM) in diets for guppy (Poecilia reticulata) fry reared in outdoor farming conditions. Four experimental diets—control (CD) (30% FM), SP (10% sweet potato leaf meal), JS (3% jackfruit seed meal), and SS (10% sesame seed meal)—were fed to guppy fry (1.91 ± 0.23 cm; 0.07 ± 0.14 g). Final body length and weight (3.69 + 0.12 cm; 0.55 + 0.07 g) and hepatosomatic index (3.53 + 1.64) were significantly higher in fish fed the SS diet. The SP diet resulted in low growth, low SGR (4.24 + 0.16), and poor FCR (3.54 + 0.32). Total tissue carotenoid content was significantly higher in the SP and JS treatments. The present study indicates that tested plant ingredients can be used to replace FM in diets for guppy, and sesame seed meal-based feed formulation can be used as a low-cost feed formulation for practical diets for guppy reared in outdoor farming condition.
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