A 23 year-old common Myna (Acridotheres tristis) was presented for autopsy to Veterinary Teaching Hospital, School of Veterinary Medicine, Ferdowsi University of Mashhad. The history presented by the owner revealed that the bird was caged alone; its diet consisted of commercial chicken layer’s pellets, fruits and vegetables. There was not any history of any diseases before that owner found her dead in the floor of its cage in the morning. Necropsy was done and revealed no gross pathological changes in visceral organs but in abdomen cavity we found few nematodes. The nematodes that were collected in this case were identified as Diplotriaena spp. The nematodes measured 10-15 mm x 0.75-0.80 mm, were milky white; the body was long and slender, mouth simple without lips. A pair of chitinous tridents (0.145-0.155 mm) was noted at the head end of the worm. Eggs were oval, thick shelled, smooth measuring 50 x 25 μm and embryonated. It is the first time in Iran when this nematode was recovered from a Myna.

Keywords