Table 3.
Effect of EOs with black pepper oil or radish seeds oil on growth performance of broiler chickens.
| Parameters | Experimental Groups | SEM | p-Value | |||||
|---|---|---|---|---|---|---|---|---|
| NC | EOs | EOs + BPO0.25 | EOs + BPO0.5 | EOs + RSO0.25 | EOs + RSO0.5 | |||
| Initial BW (g/bird) | 44.40 | 44.5 | 44.94 | 44.96 | 44.54 | 44.76 | 0.16 | 0. 904 |
| Final BW (g/bird) | 2259 d | 2375 c | 2378 c | 2422 ab | 2411 b | 2466 a | 21.11 | <0.001 |
| BWG (g/bird) | 2215 d | 2331 c | 2333 c | 2377 ab | 2366 b | 2421 a | 21.14 | <0.001 |
| FI (g/bird) | 3899 | 3893 | 3830 | 3825 | 3843 | 3879 | 9.71 | 0.075 |
| FCR | 1.76 a | 1.67 b | 1.64 bc | 1.61 c | 1.62 c | 1.60 c | 0.02 | 0.014 |
| RGR (%) | 192.29 | 192.63 | 192.58 | 192.69 | 192.74 | 192.85 | 0.07 | 0.08 |
| PER | 2.80 c | 2.94 b | 3.00 ab | 3.07 a | 3.04 a | 3.08 a | 0.03 | <0.001 |
BW: body weight; BWG: body weight gain; FI: feed intake; FCR: feed conversion ratio; RGR: relative growth rate; PER: protein efficiency ratio. NC (negative control): birds fed a basal diet without additives. EOs mixture of mint, parsley, and carrot seed oils. EOs: birds fed a basal diet supplemented with 1.5 g/kg EOs; EOs + BPO0.25: birds fed a basal diet supplemented with 1.5 g/kg EOs plus 0.25 g/kg black pepper oil (BPO); EOs + BPO0.5: birds fed a basal diet supplemented with 1.5 g/kg EOs plus 0.25 g/kg black pepper oil (BPO); EOs + RSO0.25: birds fed a basal diet supplemented with 1.5 g/kg EOs plus 0.25 g/kg radish seed oil (RSO); EOs + RSO0.5: birds fed a basal diet supplemented with 1.5 g/kg EOs plus 0.5 g/kg radish seed oil (RSO). SEM: standard error of the mean; abcd: means with different superscripts within the same row differ significantly (p < 0.05).