Table 11 Comparison of the effects of a β-mannase produced using normal fermentation technology with that of a recombinant β-mannase on the performance of growing-finishing pigs
From: Alternatives to antibiotics as growth promoters for use in swine production: a review
Items | Control | β-mannase | % Improvement |
|---|---|---|---|
Traditional fermentation 1 | |||
 Weight gain, g/d | 0.84 | 0.87 | 3.4 |
 Feed intake, g/d | 2.50 | 2.48 | - |
 Feed efficiency | 0.337 | 0.351 | 3.9 |
Recombinant technology 2 | |||
 Weight gain, g/d | 0.66 | 0.79 | 16.4 |
 Feed intake, g/d | 1.66 | 1.61 | 3.0 |
 Feed efficiency | 0.404 | 0.491 | 17.7 |