Scientific papers details

  • EFFECT OF DIFFERENT LEVELS OF LEMON GRASS OIL (LGO) AS ANATURAL GROWTH PROMOTER ON THE PERFORMANCE, CARCASS YIELDS AND SERUM CHEMISTRY OF BROILER CHICKS
  • year : 2012
  • How to cite : , 2012 , 33 (1) ,pp: 1-7
  • Abstract : This experiment was conducted to evaluate the response of feeding broiler chicks diets containing gradual levels of essential oil extracted from lemon grass(LGO).A total of 200, five days-old, unsexes (Ross 308) broiler chicks were subjected to a 42 day experimental period. Chicks were randomly divided into five groups of 40 chick’s ćwith four replicates for each group. Five experimental diets were formulated (A, B, C, D and E). Diets A as negative control (NC), diet B control diet supplemented with antibiotic (Neomycin 16 mg/Kg ) as positive control (PC),while diets C,D and E served as NC supplemented with (LGO) at 50,100 and 150 mg/Kg respectively. Result obtained showed that addition of LGO significantly improved (P≤0.05) performance (body weight gain, feed intake and feed conversion ratio) of broiler chicks as compared to the group NC while no significant(P≤0.05) differences were noted among broilers fed on diets supplemented with LGO and PC groups respectively. The mortality rate was not influenced by anyof the dietary treatments. Results revealed no significant differences (P≤0.05) among all treatment groups regarding carcass dressing percentages giblet, commercial cuts(breast, drumstick and thigh) and percentage of their separable tissue, meat chemical composition and subjective meat quality parameters. Supplementation of LGO in the broiler diets at various levels resulted in significant (p>0.05) reduction of serum cholesterol, urea and alkaline phosphate (ALP) enzyme activity as compared to both NC and PC groups while total protein, calcium ,phosphorus and AST remained unchanged. Economically the addition of LGO improved the performance of broiler chicks and resulted in economical benefits, This study showed that LGO when added as growth promoter in broiler diets had a similar effect as that with antibiotic without any adverse effects.
  • Author :
  • A.M.Mukhtar
  • K.A. Mohamed
  • Amal ,O.A
  • Ahlam, A.H
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