effects of dried garlic powder and synbiotic on performance, morphology and some of intestinal microbial population of intestine in broiler chicken
نویسندگان
چکیده
this experiment was conducted to investigate the effect of synbiotic and two levels of dried garlic powder on performance during 1-49 and ileum morphology and microbial population at 49d of age in broiler chicks. the experiment was conducted in a completely randomized design with 5 treatments, 4 replicates of 10 chicks per replicate. the dietary treatments consisted of 1) control diet without additives, 2) control diet plus 200 mg virginamycin/kg diet, 3) control diets containing 500 mg synbiotic/kg diet, 4, 5) control diet containing 0.2 and 0.4 percent garlic powder, respectively. body weight and feed intake were measured weekly and used to calculate of the performance parameters. the results showed that at 21 to 49d and whole experiment period, birds fed antibiotic and 0.2 percent garlic powder had better daily weight gain and feed conversion ratio. the length and width of the villus in the birds fed 0.2% garlic powder was higher than the control group. the greatest and least number of lactobacillus and coliform was observed in synbiotic and antibiotic treatment, respectively.
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عنوان ژورنال:
علوم دامی ایرانجلد ۴۷، شماره ۱، صفحات ۴۱-۴۹
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