A study was conducted to evaluate the supplementation of jerusalen artichoke (JA) in broiler diet at the
levels 1, 2, 3 or 4 % compared with control or control fortified with chlortetracycline (CTC) on live performance,
carcass quality, breast meat fat and cholesterol content and also health status on hematocrit (HTC), serum alanine
aminotransferase (ALT) and cholesterol content. Feeding JA and CTC at the levels of 1 to 4 % showed both better
increased in body weight gain (BWG) and better improvement in feed efficiency but did not differ significantly
(P>0.05) from control group for all periods of feeding. Breast meat fat content was decreased (P0.05) when compared with the control group. No significant effect
of JA and HTC, but ALT and cholesterol in chicks serum showed significantly decreased (P