Table 2.
Effect of two different doses of oregano essential oil (OEO; 150 and 300 mg kg-1) on growth performance in quails on edible organs weight at the end of the experimental period
| Age of the birds | Parameters | Control | OEO 150 mg kg -1 | OEO 300 mg kg -1 |
|---|---|---|---|---|
| At 14-21 day | Feed intake (g) | 334.70 ± 12.00 | 269.70 ± 10.20 | 311.60 ± 13.00 |
| Weight gain (g) | 77.66 ± 3.36b | 89.61 ± 1.10a | 69.10 ± 3.70b | |
| Feed conversion ratio | 4.31 ± 0.22a | 3.01 ± 0.04b | 4.51 ± 0.24a | |
| At 21-42 day | Feed intake (g) | 624.80 ± 10.50 | 563.7 ± 11.2 | 531.70 ± 9.30 |
| Weight gain (g) | 110.00 ± 7.12a | 102.50 ± 7.37ab | 90.58 ± 3.49b | |
| Feed conversion ratio | 5.68 ± 0.48 | 5.50 ± 0.23 | 5.87 ± 0.45 | |
| Average period (14-42 day) | Feed intake (g) | 923.50 ± 8.00 | 804.50 ± 7.40 | 933.7 ± 10.00 |
| Weight gain (g) | 186.58 ± 5.62 | 190.19 ± 3.74 | 180.60 ± 7.76 | |
| Feed conversion ratio | 4.95 ± 0.15a | 4.23 ± 0.09b | 5.17 ± 0.26a | |
| Final BW (g) | 245.38 ± 6.16 | 233.5 ± 4.85 | 230.71 ± 8.86 | |
| At 42 day | Liver absolute weight (g) | 4.52 ± 0.47 | 5.37 ± 0.74 | 6.02 ± 0.53 |
| Liver relative weight (%) | 1.93 ± 0.24 | 2.26 ± 0.26 | 2.48 ± 0.18 | |
| Heart absolute weight (g) | 4.37 ± 0.43 | 4.55 ± 0.19 | 4.41 ± 0.20 | |
| Heart relative weight (%) | 0.84 ± 0.02 | 0.91 ± 0.01 | 0.85 ± 0.03 | |
| Gizzard absolute weight (g) | 1.96 ± 0.08 | 2.23 ± 0.12 | 2.02 ± 0.14 | |
| Gizzard relative weight (%) | 1.83 ± 0.12 | 1.92 ± 0.06 | 1.82 ± 0.03 |
ab Different letters in each raw represent a significant difference at p < 0.05.