Effect of Mixture of Three Herbal Essential Oils on Performance, Carcass Yield and Blood Serum Constituents of Broiler Chicks

Abstract

The experiment was conducted to evaluate the response of broiler chicks diets supplemented with graded level of mixed essential oils (Anise , Clove , Caraway ) (1:1:1) on the Performance, Carcass Yield and Blood Serum Constituents of Broiler Chicks . A total of 160 seven days old unsexed (Ross 308) broiler chicks were subjected to 42 days experimental period. Chicks were randomly divided into five groups of 21 chicks per each pen with four replicate for each group. Five experimental diets were formulated (A ,B ,C ,D , and E) as follows , diet A as negative control , diet B was control diet supplemented with antibiotic (Neomycin 16mglkg ) diets C , D , and E were control diet supplemented with mixed essential oils (MEO) at 200 , 400 , and 600g/kg respectively . Result obtained showed no significant difference in the performance parameters (body weight, body weight gain, feed intake and FCR). However group fed a 200g/kg MEO recorded the highest values. Result also showed no significant difference in dressing percentage, giblet, commercial cuts, subjective and objective of meat quality parameters. The addition of 200g/kg MEO recorded economic benefits, also the study showed that the addition of MEO as growth promoter in broiler diets have a similar effect as that with antibiotic without any adverse effects.