Abstract
Abstract The purpose of this study was to evaluate the efficacy of yeast glucomannan (YG) and sodium bentonite (SB) in reducing the toxicity in broilers fed a diet naturally contaminated with aflatoxin. Three hundred 7-day-old Ross 308 strain broilers were chosen and randomly assigned to 10 dietary treatments. Serum biochemical parameters and pathological changes in the liver were investigated at 42 d of age. Chickens fed a diet containing 250 ppb of aflatoxin displayed a decrease in uric acid, cholesterol, and triglycerides, and an increase in serum activities of AST and ALT when compared to control group. There were considerable gross and histopathological hepatic lesions (P < 0.05) in the form of small to moderate hydropic and/or fatty degeneration, bile duct hyperplasia, periportal fibrosis, cells infiltration, and congestion, in chickens fed the 250 ppb aflatoxincontaining diet. The addition of YG and SB to the aflatoxin-containing diet partially reduced the negative effects of aflatoxin. The 0.1% YG supplementation to the aflatoxin-contaminated diet significantly prevented the pathological effect of aflatoxin on serum biochemical parameters and liver, and was found to be more effective than other treatments.
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