The document summarizes an experiment that evaluated the effect of different levels of oregano oil on broiler performance. 200 broilers were divided into 4 groups - a control group and groups given diets with 0.3%, 0.7%, or 1% oregano oil. Body weight, feed intake, and feed conversion efficiency were measured at various intervals over 42 days. Results showed broilers given oregano oil diets generally had higher body weights, weight gains, and lower feed conversion ratios compared to the control group.

1. The Effect of Oregano of Oil on
Broiler Performance

2. Materials and Methods
 200 day-old broilers (Ross-308) were divided into four groups
of 50 chickens each.
 Experimental groups were as follow:
1. L: control group
2. L1: a 0.3% oregano oil group
3. L2:a 0.7% oregano oil group
4. L3: a 1% oregano oil group

3. Evaluation
 Body weight
– Measured individually a 1, 14, 28 and 42 day of the experiment.
 Feed intake
– Recorded biweekly
 Feed conversion efficiently
– Calculated at the end of the 42 day experimental period.

4. Live Body Weight (Gm)
L
L1
0.3% Oregano Oil
L2
0.7% Oregano Oil
L3
1% Oregano Oil
0-14 days 415 431 440 441
15-28 days 864 875 880 894
29-42 days 1,086 1,095 1,143 1,149
0-42days 2,365 2,401 2,463 2,484

5. Body Weight Gain Gm/Bird/Day
L
L1
0.3% Oregano Oil
L2
0.7% Oregano Oil
L3
1% Oregano Oil
0-14 days 29.64 30.78 31.42 31.50
15-28 days 61.71 62.50 65.85 63.85
29-42 days 77.57 78.21 81.64 83.50
0-42days 56.30 57.16 58.64 59.14

6. Feed Intake Gm/Bird/Day
L
L1
0.3% Oregano Oil
L2
0.7% Oregano Oil
L3
1% Oregano Oil
0-14 days 40.2 42 42 41
15-28 days 108 109 110 111
29-42 days 179 176 180 176
0-42days 109 109 111 109

7. FCR
L
L1
0.3% Oregano Oil
L2
0.7% Oregano Oil
L3
1% Oregano Oil
0-14 days 1.35 1.35 1.33 1.29
15-28 days 1.75 1.74 1.75 1.74
29-42 days 2.31 2.25 2.20 2.15
0-42days 1.93 1.90 1.89 1.85