This experiment aimed to study the effect the adding different levels of thymus vulgaris and curcuma longa powder in the diet on the productive performance of broiler chicken . A total of 225 day old, non sexed Ross broiler chicks were randomly distributed into five treatment groups assumed of : control group (T1) , T2 and T3 treatment, supplemented with thymus vulgaris powder to birds diet at the levels of 0.5 and 1.0 % of diet, respectively . Treatment 4 and T5 supplemented with curcuma longa powder to birds diet at levels of 0.5 and 1.0 % of diet respectively .
Results revaled that, the addition of different levels of thymus vulgaris powder (T2 , T3) and one level of curcuma longa powder (T4) to the broiler diet noted in significant improvement as productive characteristics included the body weight and body weight gain as compared to control (T1) and (T5) .
The results also revaled that the addition of different levels of thymus vulgaris and curcuma longa powder were significant improvement the feed conversion efficiency and significant decreased in feed consumption as compared to control group.
In conclusion, the supplementation of curcuma longa powder at a level of 0.5 % (T4) and thymus vlugaris powder at levels of 0.5 and 1.0 % (T2 and T3) to the diet resulted in obvious improvement respecting many aspects of productive performance of broiler chicken.
There for , both thymus and curcumin can be used as nutritive supplements in broiler diet to improve productive efficiency of broiler.