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April.
Differentiating between Inclusion Body Hepatitis (IBH) and mycotoxicosis in poultry involves assessing both clinical history and specific pathological lesions. IBH is a viral disease caused by Fowl Adenovirus, typically marked by sudden high mortality in young broilers (3–7 weeks) and a swollen, friable, yellowish liver with clear intranuclear inclusion bodies seen under a microscope. Conversely, mycotoxicosis (especially from Aflatoxins or T-2 toxins) is a non-infectious condition resulting from contaminated feed, often leading to more chronic issues like oral crusts, gizzard erosion, and pale, fatty livers with bile duct hyperplasia, rather than inclusions. While both diseases cause hepatomegaly and jaundice, IBH features more acute hemorrhages resembling hemophilia on the liver and muscles, whereas mycotoxicosis usually shows a dose-dependent decline in the Bursa of Fabricius and no horizontal transmission between birds.
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