Table 3.
Effects of combined plant essential oils on carcass characteristics and immune organs of AA broilers.
| Items (%) | CON | POC | AGP | SEM | P-value |
|---|---|---|---|---|---|
| Dressed yield | 92.47 | 92.44 | 92.14 | 1.172 | 0.349 |
| Eviscerated yield | 75.43 | 75.88 | 75.53 | 1.684 | 0.665 |
| Breast muscle | 32.29 | 32.37 | 32.34 | 2.342 | 0.996 |
| Thigh muscle | 25.38 | 22.99 | 23.72 | 4.243 | 0.310 |
| Abdominal fat | 1.21 | 1.17 | 1.08 | 0.361 | 0.534 |
| Spleen index | 0.11 | 0.11 | 0.11 | 0.020 | 0.534 |
| Thymus index | 0.20 | 0.19 | 0.18 | 0.070 | 0.534 |
| Bursa of Fabricius | 0.15 | 0.18 | 0.16 | 0.040 | 0.534 |
Abbreviations: AGP, the Aureomycin supplementation treatment; CON, the control treatment; POC, the combined plant essential oils treatment.