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The objective of this research was to determine the effect of dietary Anise oil (AO) supplementation on Norfa chick's performance and some blood parameters during the period of 4 to 16 wks of age. A total of one hundred and twenty, unsexed Norfa chicks, four weeks old, were randomly divided into 4 treatments of 30 chicks and divided into 3 replicates of 10 chicks each in a completely randomized design. Treatment groups were as follows: T1, control basal diet without supplementation, T2, T3 and T4 represent the supplementation of AO at the levels of 100, 300 and 500 mg/kg diet, respectively. The experiment lasted for 16 weeks. Performance parameters, some blood parameters and economical efficiency were determined. Results showed that, the diet with 500 mg Anise oil / Kg diet had significantly (P ≤0.05) heaviest body weight, body weight gain, highest feed intake and best feed conversion ratio. Total protein and globulin significantly increased in T4 (500 mg AO/kg diet); moreover, lower total lipids and total cholesterol were also recorded for the same group. It could be concluded from this study that supplementing Norfa chick diets with Anise oil have a beneficial effect on chick's performance and could be used as a growth promoter.

EFFECT OF ANISE OIL SUPPLEMENTATION ON THE PERFORMANCE OF NORFA CHICKS AND SOME BLOOD CONSTITUENTS