Table 4.
Intestinal digestive enzymes activities of Nile tilapia fed FPBM diets for 60 days*.
| Item | FPBM (%) | P value | ||||
|---|---|---|---|---|---|---|
| 0 | 10 | 20 | 30 | 40 | ||
| Lipase activity (U/g intestine) | 22.1 ± 0.12a | 34.5 ± 0.87c | 34.6 ± 1.17c | 27.5 ± 1.44b | 21.3 ± 0.88a | 0.04 |
| Amylase activity (U/mg protein) | 31.5 ± 0.47a | 35.0 ± 0.97b | 36.0 ± 1.15b | 31.8 ± 0.20a | 30.3 ± 0.47a | 0.001 |
| Protease activity (U/mg protein) | 29.1 ± 0.48a | 32.3 ± 0.86b | 33.0 ± 0.78b | 33.6 ± 0.30b | 32.0 ± 0.68b | 0.001 |
*
Values expressed as means ± SE (n = 3). Different superscript letters indicate significant differences for each pairwise comparison between treatments.