Table 5 Muscle proximate and essential amino acid compositions of rainbow trout fed the five experimental diets for 8 weeks
MW0 | MW7 | MW14 | MW21 | MW28 | |
|---|---|---|---|---|---|
Proximate composition (% wet weight) | |||||
Moisture | 78.0 ± 1.6 | 76.3 ± 1.6 | 77.9 ± 0.8 | 76.7 ± 0.3 | 77.6 ± 0.7 |
Crude protein | 19.9 ± 1.3 | 18.6 ± 1.1 | 18.3 ± 3.7 | 17.9 ± 0.7 | 18.8 ± 2.6 |
Crude lipid | 2.72 ± 0.47 | 2.55 ± 0.42 | 2.12 ± 0.64 | 3.04 ± 0.44 | 2.51 ± 0.43 |
Ash | 1.3 ± 0.01 | 1.46 ± 0.05 | 1.27 ± 0.05 | 1.34 ± 0.02 | 1.30 ± 0.1 |
Essential amino acids (% protein) | |||||
Arg | 6.2 ± 0.1 | 6.1 ± 0.0 | 6.0 ± 0.1 | 6.0 ± 0.1 | 6.1 ± 0.0 |
His | 3.4 ± 0.1 | 3.5 ± 0.1 | 3.6 ± 0.1 | 3.7 ± 0.2 | 3.6 ± 0.1 |
Ile | 4.3 ± 0.0 | 4.3 ± 0.1 | 4.2 ± 0.0 | 4.2 ± 0.1 | 4.2 ± 0.1 |
Leu | 8.5 ± 0.0 | 8.4 ± 0.1 | 8.4 ± 0.1 | 8.4 ± 0.1 | 8.4 ± 0.0 |
Lys | 9.8 ± 0.0 | 9.7 ± 0.0 | 9.7 ± 0.0 | 9.8 ± 0.0 | 9.7 ± 0.0 |
Met + Cys | 3.9 ± 0.0 | 4.0 ± 0.1 | 4.1 ± 0.1 | 4.0 ± 0.1 | 4.0 ± 0.1 |
Phe | 4.8 ± 0.0 | 4.8 ± 0.0 | 4.9 ± 0.0 | 5.1 ± 0.1 | 4.9 ± 0.0 |
Tyr | 3.9 ± 0.1 | 3.9 ± 0.0 | 3.8 ± 0.1 | 3.9 ± 0.0 | 3.9 ± 0.1 |
Thr | 4.7 ± 0.0 | 4.7 ± 0.0 | 4.7 ± 0.0 | 4.6 ± 0.0 | 4.7 ± 0.0 |
Val | 5.0 ± 0.0 | 5.0 ± 0.1 | 5.0 ± 0.0 | 4.9 ± 0.1 | 4.9 ± 0.1 |