Aflatoxins (AFs) are groups of toxins of fungus that are mainly produced in Aspergillus parasiticus. This study was conducted in order to evaluate the prohibitory effect of mycosorb adsorbent from aflatoxin toxicity. The experiment was carried out with 400 broiler chickens. Treatment 1 was fed the basal ration treatment 2 containing 1ppm AFs, treatment 3 received the feed containing 1ppm AFs and 0.25% Mycosorb adsorbent and treatment 4 was given the feed containing 0.25% Mycosorb adsorbent. Results have shown that 1ppm AFs in diet in comparison to control treatment caused significant increase in gizzard weight and damaged to some of blood factors at the end of rearing (p>0.05). In contrast enlargement of proventriculus was increased significantly in both (21 and 42) rearing period (p<0.05) as well as deteriorated effect on gizzard (gizzard erosion) was recognized. Level of 0.25% Mycosorb on Diet Company by 1ppm AFs could not compensate harmful effects of AFs on percentage of gizzard weight in the end of rearing period but it returned the harmful effect of AFs on most of blood parameters. No significant reaction was shown on percentage weights, gizzard erosion, proventriculus enlargement and blood parameters, (p>0.05) by 0.25% Mycosorb diet. The results of this study have shown that presence of AFs (1ppm) in diet of broiler chickens has deteriorated effects on gizzard erosion, proventriculus enlargement and some blood factors.
