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Experimental design with the laying hens.
| Treatment | Concentration, mg/kg of Hen Weight | Average Daily Feed Consumption g/day | Average Hen Weight, kg | |
|---|---|---|---|---|
| TT (control) | Tea tree essential oil | 100.00 | 110.00 | 1.79 ± 0.12 |
| TC | Tetracycline | 100.00 | 110.00 | 1.78 ± 0.23 |
| OTC | Oxytetracycline | 100.00 | 110.00 | 1.79 ± 0.07 |
| CTC | Chlortetracycline | 100.00 | 110.00 | 1.81 ± 0.16 |
