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Clarias batrachus is a commercially important food fish. In the present study, effect of varying dietary protein levels was evaluated on the survival, growth parameters and proximate composition of C. batrachus. Diets comprising 25%, 30%, 35%, 40%, 45%, and 50% crude protein (CP) were supplied to fish in T1, T2, T3, T4, T5, and T6, respectively, at...
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Clarias batrachus is a commercially important food fish. In the present study, effect of varying dietary protein levels was evaluated on the survival, growth parameters and proximate composition of C. batrachus. Diets comprising 25%, 30%, 35%, 40%, 45%, and 50% crude protein (CP) were supplied to fish in T1, T2, T3, T4, T5, and T6, respectively, at...
Citations
... chanos) criado en estanques de agua salobre. En tanto que para la especie acuícola C. batrachus se obtuvo que alimentar a los peces con una dieta adecuada (que contenía 40% de proteína cruda) resultó en un buen rendimiento de crecimiento, un índice de conversión alimenticia más bajo y un mayor contenido de proteína en los peces (Naeem et al., 2024). Se han realizado investigaciones nutricionales en algunas especies de pimelódidos de interés comercial en América del Sur, como, Pseudoplatystoma corruscans (Teixeira et al., 2010) y Rhamdia quelen (Filho & Fracalossi, 2006). ...
The objective of this study was to evaluate the effect of three protein levels (35%, 40%, and 45% Crude Protein) and a single energy level (4800 kcal/kg) on the development parameters and zootechnical indices of 45 juvenile mota (Calophy sus macropterus, Lichtenstein, 1819) with an average size and weight of 16.49±0.1 cm and 25.62±0.2 g under laboratory conditions, using a feeding frequency of three times per day (ad libitum). A completely randomized design (CRD) was applied with three treatments and three replications (9 plastic tanks of 100 liters), at a density of 1 fish/20 L, over a period of 75 days. The average limnological parameters were maintained stable through water exchange. The results reveal a significant difference betweenthe 40% Crude Protein level compared to 35% and 45% Crude Protein, both with the same energy level (4800 kcal/kg). The 40% Crude Protein level had a favorable effect on weight, length, absolute growth rate (AGR), specific growth rate (SGR), relative growth rate (RGR), feed conversion (FC) (p<0.05), and survival remained at 100% (p>0.05). It is concluded that protein levels of 35%, 40%, and 45% Crude Protein influence the growth of the fish, with notable growth in size and body weight gain.
