Table 6.
Effects of dietary acidifier supplementation on the duodenal digestive enzymes of broilers (U/mg prot).1
| Item | NC | NC + antibiotic (8 mg/kg) | NC + PA (0.1 g/kg) | NC + PA (0.2 g/kg) | NC + PA (0.3 g/kg) | NC + LA (0.3 g/kg) | SEM | P-value |
|---|---|---|---|---|---|---|---|---|
| Trypsin | 3,981.16bc | 3,307.94c | 2,692.83c | 8,252.86a | 7,008.07ab | 2,840.74c | 574.83 | <0.01 |
| Lipase | 96.84ab | 64.31b | 64.64b | 160.87a | 149.77a | 67.56b | 11.53 | <0.05 |
| Chymotrypsin | 6.94ab | 5.77b | 6.53b | 10.39a | 7.86ab | 4.48b | 0.54 | <0.05 |
| Amylase | 5.97 | 9.11 | 6.13 | 7.57 | 7.23 | 2.73 | 1.12 | 0.72 |
NC = negative control (basal diet); PA = phosphoric acid; LA = lactic acid.
a, b, c Within a row, values with different superscripts indicate a significant difference (P < 0.05).
1
Each value represents the mean of 6 replicates (n = 6).