{"id":20939,"date":"2026-10-15T09:25:39","date_gmt":"2026-10-15T02:25:39","guid":{"rendered":"https:\/\/www.vietstock.org\/?p=20939"},"modified":"2026-10-13T14:28:51","modified_gmt":"2026-10-13T07:28:51","slug":"fungal-skin-disease-chickens-signs-causes-prevention","status":"publish","type":"post","link":"https:\/\/www.vietstock.org\/en\/industry-news\/fungal-skin-disease-chickens-signs-causes-prevention\/","title":{"rendered":"Fungal Skin Disease in Chickens: Signs, Causes, and Prevention"},"content":{"rendered":"

Fungal skin disease in chickens<\/b> refers to fungal infections affecting the skin. One typical form is favus (<\/span>avian ringworm<\/span><\/i>), sometimes referred to as fungal infection of the comb. The disease is commonly associated with <\/span>Microsporum gallinae<\/span><\/i> and may produce white, powdery patches or dry scales on the comb, wattles, and skin around the head.<\/span><\/p>\n

However, the presence of white patches, crusting, or feather loss is not enough to conclude that a chicken has a fungal skin infection. Fowl pox, scaly leg mite infestation, ectoparasites, injuries caused by pecking, and dermatitis from other causes may produce similar signs.<\/span><\/p>\n

The appropriate approach is therefore not simply \u201csee a white patch and apply an antifungal.\u201d The location and appearance of the lesion, how widely it has spread, the condition of other birds in the flock, and relevant management factors should all be considered.<\/span><\/p>\n

Looking at Skin Lesions in Chickens: 4 Points That Can Help with Initial Assessment<\/b><\/h2>\n

White, powdery patches concentrated on the comb<\/b> may suggest favus, particularly when the lesions are dry, scaly, and spread to the wattles or head.<\/span><\/p>\n

Thick crusts or dark raised nodules on featherless skin<\/b> should be differentiated from fowl pox.<\/span><\/p>\n

Thickened, raised, and deformed scales on the legs<\/b> should prompt consideration of scaly leg mite infestation before concluding that the condition is fungal.<\/span><\/p>\n

Feather loss accompanied by itching, excessive preening, or rubbing<\/b> should prompt examination for ectoparasites and other possible causes.<\/span><\/p>\n

The appearance of a lesion can only provide initial clues. When lesions spread extensively, affect multiple birds, or fail to improve, the underlying cause should be identified before treatment is selected.<\/span><\/p>\n

1. White Patches or Crusting on a Chicken Should Not Automatically Be Diagnosed as a Fungal Infection<\/b><\/h2>\n
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White patches or crusting on the comb may suggest favus, but they are not enough to confirm a fungal skin infection because fowl pox, parasites, trauma, and dermatitis can cause similar lesions.<\/figcaption><\/figure>\n

Favus is a fungal skin disease reported in chickens and some other poultry species. The organism most commonly associated with the disease is <\/span>Microsporum gallinae<\/span><\/i>.<\/span><\/p>\n

The fungus can grow in keratin-rich structures such as the outer keratinized layer of the skin and structures associated with feathers. Lesions often begin on the comb and may later appear on:<\/span><\/p>\n