Table 2.
Analyzed chemical composition of the experimental diets (g/kg dry matter).
| Basal diet | Protease A | Protease B | Protease C | Phytase | ||||
|---|---|---|---|---|---|---|---|---|
| Supplementation level1 | No enzyme | 25 mg/kg | 200 mg/kg | 500 mg/kg | 4000 mg/kg | 200 mg/kg | 1600 mg/kg | 1500 FTU/kg |
| CP | 246 | 246 | 246 | 248 | 245 | 248 | 246 | 245 |
| Ether extract | 71 | –2 | – | – | – | – | – | 70 |
| Crude fiber | 27 | – | – | – | – | – | – | 27 |
| aNDFom | 118 | – | – | – | – | – | – | 117 |
| ADFom | 44 | – | – | – | – | – | – | 45 |
| Ala | 12.2 | 12.4 | 12.3 | 12.1 | 12.1 | 12.2 | 12.3 | 12.4 |
| Arg | 16.7 | 16.8 | 16.7 | 16.6 | 16.3 | 16.7 | 16.6 | 16.8 |
| Asp/Asn | 26.4 | 26.8 | 26.5 | 26.1 | 26.2 | 26.5 | 26.5 | 26.9 |
| Cys | 3.7 | 3.8 | 3.7 | 3.7 | 3.7 | 3.7 | 3.9 | 3.8 |
| Glu/Gln | 46.0 | 46.5 | 46.1 | 45.5 | 45.5 | 45.9 | 46.0 | 46.6 |
| Gly | 10.3 | 10.5 | 10.4 | 10.3 | 10.2 | 10.4 | 10.4 | 10.5 |
| His | 7.2 | 7.3 | 7.3 | 7.1 | 7.3 | 7.3 | 7.4 | 7.5 |
| Ile | 10.6 | 10.5 | 10.3 | 10.4 | 9.8 | 10.4 | 10.3 | 10.2 |
| Leu | 21.4 | 21.6 | 21.4 | 21.2 | 21.0 | 21.2 | 21.3 | 21.5 |
| Lys | 13.4 | 13.5 | 13.3 | 13.3 | 13.1 | 13.4 | 13.3 | 13.6 |
| Met | 3.6 | 3.6 | 3.6 | 3.5 | 3.5 | 3.6 | 3.6 | 3.6 |
| Phe | 12.5 | 12.6 | 12.5 | 12.4 | 12.2 | 12.5 | 12.5 | 12.6 |
| Pro | 14.9 | 15.1 | 15.4 | 15.0 | 15.3 | 15.0 | 15.2 | 14.8 |
| Ser | 12.9 | 13.3 | 13.2 | 12.9 | 13.1 | 13.1 | 13.2 | 13.4 |
| Thr | 9.8 | 10.0 | 9.9 | 9.7 | 9.7 | 9.8 | 9.9 | 10.0 |
| Tyr | 8.5 | 8.6 | 8.6 | 8.5 | 8.5 | 8.7 | 8.5 | 8.6 |
| Val | 11.5 | 11.2 | 11.1 | 11.2 | 10.6 | 11.2 | 11.1 | 10.9 |
| Calcium | 10.9 | – | – | – | – | – | – | 11.0 |
| Phosphorus | 5.7 | – | – | – | – | – | – | 5.8 |
1The lower supplementation of each protease product complies with the recommendations of the suppliers, the other dosage is 8-fold higher.
2– = Not analyzed.