Abstract
Proximate body composition of wild and cultured Heterobranchus bidorsalis and Clarias gariepinus were analyzed. The crude protein content of wild and cultured H. bidorsalis and C. gariepinus were 55.03± 6.21%, 54.00±4.90%, 50.20±0.38%, and 48.90± 2.70% respectively which showed significant differences (p≤0.05). There were also significant differences (p≤0.05) in lipid values in wild and cultured H. bidorsalis and C. gariepinus (7.00±2.20%, 8.00±4.30%, 5.08±0.14%, and 5.63 ± 0.91%). The ash values showed significant difference (p<0.05) (2.90±0.30%, 3.11± 2.26%, 2.3±0.69% and 2.09±0.08%) respectively. There was no significant difference (p≥0.05) in the moisture content between wild and cultured C. gariepinus (77.10±4.20% and 77.10±3.20%) but a high significant difference (p≤0.05) in that of H. bidorsalis (69.4±15.6% and 78.10±5.50%). There was no significant difference (p≥0.05) in dry matter content in wild and cultured C. gariepinus (22.8±3.23% and 22.8±33%) but high significant differences (p≤0.05) were observed in H. bidorsalis (26.56±11.7% and 21.9±5.5%). The NFE and crude fiber showed significant differences (p≤0.05) in wild and cultured H. bidorsalis and C. gariepinus (17.24±3.28% and 17.90±1.90%), 2.35±0.60% and 3.28±0.90%; 16.66±2.00% and 17.70 ± 2.82%, 2.06±0.70% and 2.48±0.76%). The regression coefficient of the length-weight showed a significant difference (p≤0.05) in the wild and cultured samples. Both species showed negative allometric growth.
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