Table 3.
Effect of COS supplementation on growth performance in broilers.
| Growth Parameter 1, 2 | Control Group | Antibiotic Group | COS Group | SEM | p-Value |
|---|---|---|---|---|---|
| ADG (g/day) | 29.1 | 30.7 | 30.4 | 0.5 | 0.343 |
| ADFI (g/day) | 46.3 | 47.5 | 46.4 | 0.7 | 0.764 |
| F/G (g/g) | 1.60 a | 1.53 b | 1.52 b | 0.01 | 0.030 |
a, b Means within a row with different superscripts differ significantly at p < 0.05. 1 ADG: average daily gain; ADFI: average daily feed intake; F/G: feed to gain ratio. 2 Control group, basal diet; Antibiotic group, basal diet supplemented with 50 mg/kg chlortetracycline; COS group, basal diet supplemented with 30 mg/kg chitooligosaccharide; SEM, standard error of means (n = 6).