Table 9.
Enzyme activities in ileal digesta of pigs fed corn–soybean meal- or corn–soybean meal–rapeseed cake-based diets without or with the supplementation of phytase, nmol/min/g (Exp. 2)1
| BDSBM2 | BDRSC3 | P-value | ||||||
|---|---|---|---|---|---|---|---|---|
| Phytase: | 0 | 1,500 | 0 | 1,500 | SEM | Protein source | Phytase | Protein source × phytase |
| Carboxypeptidase A4 | 1,156 | 1,433 | 1,064 | 1,449 | 299 | 0.600 | 0.704 | 0.495 |
| Carboxypeptidase B | 3,824 | 3,762 | 3,489 | 2,489 | 570 | 0.102 | 0.244 | 0.432 |
| Trypsin5 | 195a | 257ab | 300b | 245ab | 37 | 0.054 | 0.865 | 0.042 |
| Chymotrypsin | 19 | 22 | 16 | 14 | 2 | 0.010 | 0.783 | 0.184 |
1Data are given as LSMeans and pooled SEM (untransformed data).
2Corn–soybean meal-based basal diet.
3Corn–soybean meal–rapeseed cake-based basal diet.
4Number of observations for unsupplemented diets and supplemented BDRSC were n = 6 each, and for BDSBM with phytase supplementation n = 5.
5Number of observations for supplemented diets and unsupplemented BDRSC were n = 6 each, and for BDSBM without phytase supplementation n = 5.
a–bMeans in a row not sharing a common superscript differ significantly (multiple t-tests in case of interaction) (P < 0.05).