This study was conducted to determine the effect of adding vitamin A and different levels of chlorophyll extract to reducing negative effects of aflatoxin B1 on the production performance of Lohman Brown chickens at animal production farm belong to college of agriculture / University of Anbar from 1/2/2021 to 20/6/2021. Eighty-four laying hens were used, aged 24 weeks distributed randomly into seven treatments with four replicates per treatment (3 hens/replicate). The treatments of the experiment were as followed; T1 / control ration without any addition, T2 was treated with aflatoxin (B1) of 200 mg / kg of feed, T3 included addition vitamin A at 200 mg / kg, T4 addition chlorophyll extract 200 mg / kg of feed, T5 addition chlorophyll extract 100 mg / kg of feed + aflatoxin (B1) 200 mg / kg, T6 addition chlorophyll extract 200 mg / kg of feed + aflatoxin (B1) 200 mg / kg, T7 addition chlorophyll extract 300 mg / kg of feed + aflatoxin (B1) 200 mg / kg. The results showed the superiority of addition treatment (chlorophyll extract 300 mg / kg of feed) in productive traits during the production period (24-39) weeks compared with T1and T2. Also, results indicated that birds fed diets treated with aflatoxin B1 recorded lowest values in productive performance. Moreover, chlorophyll proved that it can enhanced productive performance for laying hens and decrease negative role aflatoxin B1 in feeds.

Chlorophyll Extract, Aflatoxin B1, Laying Hens, Productive Performance.