effects of JA on HTC but ALT and cholesterol in chickûs serum shower significantly decreased (P<0.05) when all levels of JA were fed and cholesterol decreased (P<0.05) when fed JA at 3% (Table 4). However, the normal range of cholesterol levels of broiler is between 86-110 mg% (Carpenter et al., 2001). Mortality of CTC or JA fed chicks were reduced when compared with the control group. Feeding JA at 3% in broiler diet showed beneficial in both BWG, feed efficiency and mortality for alternative replacement of CTC for antibiotic growth promoter.480 day-old Arbor Acres mixed-sex were evenly assigned to 6 dietary treatments with 4 replications of 20 chicks each. Each pen was equipped with two hanging feeders and automatic water and using rice hull as bedding over concrete floors. Incandescent light were provided with 24 h/d. Nutritionally complete diets (NRC, 1994) were prepared for starter (0 to 21 d) and finisher (21-42 d). the 6 treatments included: 1) control (no antibiotic); 2) control with 0.01 % chlortetracy- cline (CTC); 3) 1% JA; 4) 2% JA; 5) 3% JA; 6) 4% JA (Table 1 and 2).
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