‫استجابة كتاكيت اللحم لعلائق تحتوي علي‬ ‫الثوم كإضافة علفية طبيعية‬

Abstract

Abstract This experiment was conducted to study the effect of feeding broiler chicks on diets containing different level of garlic (Allium sativum) as natural feed additives on productive performance, dressing percentage and economical efficiency. Total number of 90, one day usexed, Habbard hybrid strain broiler chicks, of approximately similar intial weigh were randomly divided into five experimental groups with three replicates. The first group(A) , fed on basal diet (negative control). The second group (B) fed on basal diet supplimented with antibiotic(Neomycin sulphate,16mg/kg as growth promoter (possitive control). The other groups C,D and E were fed on the basal diet supplimented with dried garlic as natural growth promoter, at levels of 2,3 and 4% respectiviely. The basal diet was formulated to meet the nutrients requirements of the broiler according to NRC,(1994). Health of he stock and productive performance parameters were recorded. Dressing percentage and economical evaluations were calculated. The results indicated that the garlic supplimented groups had significantly (P< 0.05) better body weight gain and feed conversion ratio 9 than the negative control group, where as, the different as between garlic supplimented groups and possitive control group were not significant. The feed intake was not significantly affected by the dietary treatments. The results showed that the negative control group exhibites significantly (P< 0.05) higher mortality rate(2%) compared to either garlic supplemented groups or the possitive control group, when no mortalities were recorded. The results indicated no significant differences among the treatment groups in hot and cold dressing percentage. The groups of chicks fed on garlic supplemented diets yielded the highest net profit compared to either the negative control or the possitive control groups. The net profit value increased directly with the increase of the garlic dose.