Abstract
The research objective was to determine the digestive tract profile and carcass production of broiler chickens fed on antibiotic-free feed in areas with different elevation area. The study a survey designed according to the General Linear Model with purposive random sampling to choose farmer with 5.000-10.000 chickens Cobb strain, used opened house and free-antibiotic feed. The data was analyzed used univariate one-way analysis of variance. The result showed that the different elevation area have not significantly affected (p>0.05) the crop, proventriculus, duodenum weight and lenght, inter villi space, carcass weight, carcass percentage of broiler chickens fed by antibiotic-free feed. However, it has significantly affected (P
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