Table 5.
Activity of trypsin, lipase, and amylase in the hepatopancreas and intestine of P. vannamei fed six different diets.
| Items | Experiment diets | Pr > F | |||||||
|---|---|---|---|---|---|---|---|---|---|
| DBWLM0 | DBWLM15 | DBWLM30 | DBWLM45 | DBWLM60 | DBWLM75 | ANOVA | Linear | Quadratic | |
| Intestinal | |||||||||
| Trypsase (U/mgprot) | 93.39 ± 9.34ab | 132.89 ± 9.89a | 116.94 ± 9.66ab | 86.86 ± 9.17b | 64.17 ± 8.29c | 58.65 ± 8.46c | 0.002 | < 0.001 | 0.001 |
| Lipase (U/gprot) | 88.09 ± 7.21 | 108.43 ± 6.78 | 88.08 ± 7.07 | 89.23 ± 7.91 | 89.54 ± 8.23 | 100.74 ± 9.85 | 0.408 | 0.017 | 0.619 |
| Amylase (U/mgprot) | 201.63 ± 23.12 | 213.51 ± 25.44 | 222.82 ± 23.65 | 189.37 ± 22.89 | 170.81 ± 22.61 | 136.16 ± 22.78 | 0.546 | 0.075 | 0.097 |
| Hepatopancreas | |||||||||
| Trypsase (U/mgprot) | 187.16 ± 16.28 | 189.88 ± 15.31 | 177.21 ± 17.24 | 173.59 ± 16.41 | 189.34 ± 17.32 | 189.14 ± 16.35 | 0.133 | 0.051 | 0.327 |
| Lipase (U/gprot) | 44.20 ± 5.47c | 46.11 ± 6.40bc | 61.45 ± 5.38bc | 95.66 ± 6.45a | 64.16 ± 5.56b | 60.46 ± 7.50bc | 0.003 | 0.010 | 0.038 |
| Amylase (U/mgprot) | 128.32 ± 15.29 | 133.26 ± 13.09 | 124.26 ± 9.25 | 126.77 ± 9.50 | 124.36 ± 13.43 | 125.37 ± 12.56 | 0.019 | 0.710 | 0.223 |
Note. Data are presented as the mean ± standard error (n = 3). ANOVA, analysis of variance.