Aflatoxins, a class of mycotoxins produced by the fungi Aspergillus parasiticus and Aspergillus flavus, are major contaminants of common feed ingredients used in poultry rations(1). Poor onfarm storage of feeds is a primary reason for aflatoxicosis in farm animals(2). Aflatoxin B1 (AFB1)is the most biologically active form of AF and causes poor performance, liver lesions and immunosuppression in poultry(3,4). Negative effects of AFB1 include cell damage, release of free
radicals and lipid peroxidation(5). Since lipid peroxidation plays a major role in the toxicity of AF, a protective effect of antioxidants is possible(6,7). Synthetic antioxidants like butylated hydroxytoluene are known to reduce hepatic lesions caused by AFB1 through modulating the detoxification system(8). Plant compounds like coumarins, flavonoids and curcuminoids have inhibitory action on biotransformation of AF to their epoxide-active derivatives(9). Turmeric (Curcuma longa L.), a medicinal plant native to the Asian subcontinent,is known to possess antimicrobial and antioxidant properties. The powder of dried roots and rhizomes of turmeric are used as one of the spices in Indian curries and other cuisine.