studies on mycotoxins affecting ducks in kalyoubia province

The present study was conducted to survey 328 randomlycollected poultry and duck feed samples and ingredients fromdifferent poultry and duck farms in two governorates(Kalyoubia and Menoufiya) in a trial to estimate the incidenceand prevalence of mycotoxins in poultry and duck feeds and toinvestigate the clinicopathological effect of graded doses ofaflatoxin B 1 equivalent on two breeds of ducks (Baldy andBaijin).• Experiment No. 1:The experiment was conducted to study the prevalence andincidence of mycotoxins in different poultry and duck feedsand ingredients. It was found that only 3.66% of the monitoredsamples contained aflatoxins. The af’l atox ins level rangedbetween 5 - 220 u.g/kg feed, only 0.92% of monitored samplescontained ochratoxin A. The ochratoxin A level rangedbetween 10 - 30 J.1g/kg feed and only 0.61 % of monitoredsamples contained zerealenone. The zerealenone level rangedbetween 30 - 40 ug/kg feed.