Table 8.
Effect of exogenous protease (PROT/kg) and purified trypsin inhibitor (TIU/g) concentration on enzyme activity in the duodenal digesta (units/mL) and Pancreas (units/mg), at day 21 posthatching.
| Item | TI |
SEM | Protease |
TI |
P-value |
|||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0 |
9,000 |
|||||||||||
| Protease |
Protease |
|||||||||||
| 0 | 15,000 | 0 | 15,000 | 0 | 15,000 | 0 | 9,000 | Protease | TI | P × TI | ||
| Duodenal digesta | ||||||||||||
| Trypsin | 10.13 | 11.69 | 7.76 | 10.40 | 0.699 | 8.95 | 11.04 | 10.91 | 9.08 | 0.007 | 0.016 | 0.446 |
| Chymotrypsin | 5.49 | 6.77 | 3.79 | 5.41 | 0.123 | 4.64 | 6.09 | 6.13 | 4.60 | <0.001 | <0.001 | 0.178 |
| Amylase | 121.49 | 115.10 | 117.99 | 119.44 | 3.284 | 119.74 | 117.27 | 118.30 | 118.71 | 0.460 | 0.900 | 0.247 |
| Lipase | 1.30 | 1.32 | 1.41 | 1.35 | 0.047 | 1.35 | 1.33 | 1.31 | 1.38 | 0.682 | 0.140 | 0.393 |
| Pancreas | ||||||||||||
| Trypsin | 5.81 | 5.67 | 6.02 | 5.40 | 0.333 | 5.92 | 5.53 | 5.74 | 5.71 | 0.263 | 0.915 | 0.473 |
| Chymotrypsin | 4.28 | 4.31 | 4.12 | 4.21 | 0.076 | 4.20 | 4.26 | 4.29 | 4.16 | 0.433 | 0.102 | 0.708 |
| Amylase | 34.91 | 33.59 | 35.66 | 35.13 | 1.331 | 35.28 | 34.36 | 34.25 | 35.39 | 0.495 | 0.399 | 0.770 |
| Lipase | 0.95 | 0.98 | 1.07 | 1.00 | 0.045 | 1.01 | 0.99 | 0.97 | 1.03 | 0.670 | 0.143 | 0.325 |
| N | 8 | 8 | 8 | 8 | 16 | 16 | 16 | 16 | ||||
Abbreviations: P, protease; TI, trypsin inhibitor.