Table 2.
Effects of GTPS on growth performance in chickens.
| Item | Groups | |||
|---|---|---|---|---|
| Body weight (g) | NC | LDG | MDG | HDG |
| Body weight after prefeeding period | 187.7 ± 5.57a | 191.9 ± 4.03a | 188.1 ± 4.24a | 191.3 ± 4.40a |
| 28 d | 680.0 ± 30.00d | 728.0 ± 37.09c | 850.0 ± 28.28b | 910.0 ± 30.00a |
| 56 d | 1092.0 ± 18.37d | 1246.0 ± 64.65c | 1486.0 ± 58.99b | 1626.0 ± 97.11a |
| Average daily gain (g/d per chicken) | ||||
| 1-28 d | 17.58 ± 1.23c | 19.15 ± 2.12c | 23.64 ± 1.11b | 25.67 ± 1.79a |
| 28-56 d | 14.71 ± 2.44d | 18.50 ± 1.67c | 22.71 ± 3.12b | 25.57 ± 1.79a |
| 1-56 d | 16.14 ± 1.45d | 18.82 ± 2.48c | 23.17 ± 3.1b | 25.61 ± 2.79a |
| Average daily feed intake (g/d per chicken) | ||||
| 1-28 d | 33.45 ± 2.12d | 36.20 ± 1.56c | 45.25 ± 2.47b | 50.57 ± 3.22a |
| 28-56 d | 22.05 ± 3.71d | 27.11 ± 2.65c | 32.78 ± 2.26b | 36.41 ± 3.16a |
| 1-56 d | 27.56 ± 1.98d | 32.32 ± 2.67c | 40.32 ± 2.61b | 45.84 ± 1.34a |
| Feed conversion ratio (g/g) | ||||
| 1-28 d | 1.90 ± 0.06 | 1.89 ± 0.009 | 1.91 ± 0.01 | 1.97 ± 0.08 |
| 28-56 d | 1.49 ± 0.005 | 1.47 ± 0.06 | 1.44 ± 0.008 | 1.42 ± 0.03 |
| 1-56 d | 1.71 ± 0.008 | 1.72 ± 0.02 | 1.74 ± 0.01 | 1.78 ± 0.003 |
Within the same lines, values with different letters differed significantly (P < 0.05). The values were expressed as the mean ± SD (n = 15). NC: normal control group (basal diet). LDG: low-dose group (basal diet supplemented with 200 mg/kg GTPS). MDG: middle-dose group (basal diet supplemented with 400 mg/kg GTPS). HDG: high-dose group (basal diet supplemented with 800 mg/kg GTPS).