Abstract
Fifty-two young budgerigars with French molt developed were examined histopathologically and electronmicroscopically.A utopsy revealed shortening and lack of flighta nd tailf eathers in all of them. Necrobiosis of the feather epidermis, exudative pulpitis, a nd occasionally, g ranulomatous pulpitisw ere noticed. Intranucleari nclusionb odies were formed in thefeather epidermis in 3 birds. In them, papovavirus-likep articlesw ere identified.
It was difficultto find any causal relationshibp etween these bodies and exudative or granulomatous pulpitis. Several feather diseases might be involved in French molt, although papovavirus is one of the causative agents of the feather lesion.