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.
