Veterinarski arhiv, Vol. 82 No. 1, 2012.
Izvorni znanstveni članak
Morphopathologic characteristics of myiasis caused by Przhevalskiana silenus larvae in goats.
Azizollah Khodakaram-Tafti
; Department of Pathology, School of Veterinary Medicine, Shiraz University, Shiraz, Iran
Seyed M. Razavi
; Department of Parasitology, School of Veterinary Medicine, Shiraz University, Shiraz, Iran
Sedigheh Gorgipour
; Department of Parasitology, School of Veterinary Medicine, Shiraz University, Shiraz, Iran
Sažetak
Myiasis due to Przhevalskiana silenus infestation is an economic and health problem in most goat breeding countries. In the present study, the skin, subcutaneous tissues and internal organs of eighty-five local breed goats naturally infested by Przhevalskiana silenus larvae were examined grossly and histopathologically. Macroscopically, variable numbers of different larval stages (first, second and third) were observed in the subcutaneous tissues and the skin of the back and flanks. Abscess formation, perforated ulcers and also a number of holes due to migratory tracts and emerging mature larvae were observed in the affected skins. No larvae or any suspected lesions were found in other parts of the body. Microscopically, two main pathological lesions were diagnosed in the path of migration or around remnant fragments of alive or dead larvae in subcutaneous tissues, including purulent to non-purulent and granulomatous to pyogranulomatous dermatitis. The cross section of the larvae showed a thick eosinophilic cuticle associated with a number of outer short tiny spikes, various internal organs, such as the digestive system, were lined by tall simple columnar epithelium and full of digested inflammatory cells. Degenerated or dead larvae or fragments of the live larvae cuticle induced granulomatous or pyogranulomatous inflammatory reactions during molting.
Ključne riječi
morphopathology; Przhevalskiana silenus; myiasis; goat
Hrčak ID:
77348
URI
Datum izdavanja:
6.2.2012.
Posjeta: 1.710 *