Table 1.
Growth performance in broiler chickens.
| Parameters | Treatment | P value | |||||
|---|---|---|---|---|---|---|---|
| C | A | P | P vs. C | A vs. C | P vs. A | ||
| (Mean ± SD) | (Mean ± SD) | (Mean ± SD) | |||||
| Body weight (g) | 7 days | 147.48 ± 11.08 | 146.50 ± 9.09 | 157.35 ± 8.58 | n.s. | n.s. | ∗ |
| 14 days | 499.75 ± 20.67 | 509.50 ± 46.20 | 532.50 ± 24.09 | n.s. | n.s. | n.s. | |
| 21 days | 858.62 ± 30.74 | 999.75 ± 64.47 | 1076.12 ± 98.48 | ∗∗ | ∗∗ | ∗ | |
| 35 days | 1901.38 ± 76.36 | 2206.00 ± 263.57 | 2156.12 ± 198.61 | n.s. | ∗∗ | n.s. | |
|
| |||||||
| Daily weight gain (g) | 0–7 days | 15.23 ± 1.38 | 15.22 ± 1.15 | 16.82 ± 1.08 | ∗ | n.s. | ∗ |
| 7–14 days | 50.32 ± 1.51 | 51.86 ± 5.35 | 53.59 ± 2.33 | n.s. | n.s. | n.s. | |
| 14–21 days | 51.27 ± 1.74 | 70.04 ± 3.01 | 77.66 ± 10.74 | ∗∗ | ∗∗ | ∗ | |
| 21–35 days | 80.21 ± 3.72 | 92.79 ± 16.24 | 83.08 ± 9.23 | n.s. | ∗ | n.s. | |
|
| |||||||
| FCR (1–35 days) | 2.02 | 1.63 | 1.62 | ||||
n.s. means not significant (P > 0.05); ∗significant (P < 0.05); ∗∗extreme significant (P < 0.01). C = control group; A = chlortetracycline group; P = Bacillus amyloliquefaciens TL group; FCR: feed conversion ratio.