Occurrence of cyclopiazonic acid in feeds and feedstuffs in Tamil Nadu, India.

Out of 100 samples (67 randomly collected and 33 known to contain aflatoxin) of feeds and feedstuffs examined, 40 showed cyclopiazonic acid (CPA) activity, i.e., maize 10/26, groundnut cake 10/20, sunflower seed cake 7/10, sorghum 4/10, wheat 1/1, little millet 1/1, rice 1/1, deoiled rice bran 0.1, fishmeal 0/1, chick mash 1/3, grower mash 0/7, layer mash 3/11, broiler mash 2/6 and cattle feed 0/2, concentrations ranged from 0.4 to 12, 0.5 to 20, 0.3 to 20, 0.3 to 20, 20, 10, 10, 1.5, 1 to 15, 8 and 15 ppm, respectively. Co-occurrence of CPA was found in 14 of 33 aflatoxin-containing samples.