Psittacine beak and feather disease in Iran, molecular and histopathologic detection

ABSTRACT

Psittacine beak and feather disease [PBFD] is a major viral disease in wild and captive psittaciformes all around the world. The disease was suspected in a 7 years old lesser sulphur-crested cockatoos [Cacatua sulphured] with a minor feather loss at the back of neck and head. The bird was comprehensively examined by macroscopic pathology, histopathology and polymerase chain reaction [PCR]. Marked intracellular edema of the keratinocytes and necrosis were evident in histopathological observation of dystrophic feather follicles. Numerous macrophages with cytoplasmic inclusions [botryoid] and Prevasculitis were also present in the dermis. Histopathologically, the feather lesions and inclusions were typical of PBFD. The presence of psittacine beak and feather disease virus [BFDV] DNA was confirmed by PCR. This is the first documented report of the occurrence of the PBFD in Iran