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Volume 40, Number 4 >

HISTOPATHOLOGICAL SURVEY OF PROTOZOA, HELMINTHS AND ACARIDS OF IMPORTED AND LOCAL PSITTACINE AND PASSERINE BIRDS IN JAPAN

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Please use this identifier to cite or link to this item:https://doi.org/10.14943/jjvr.40.4.161

Title: HISTOPATHOLOGICAL SURVEY OF PROTOZOA, HELMINTHS AND ACARIDS OF IMPORTED AND LOCAL PSITTACINE AND PASSERINE BIRDS IN JAPAN
Authors: TSAI, Shinn-Shyong Browse this author
HIRAI, Katsuya Browse this author
ITAKURA, Chitoshi Browse this author
Keywords: pet bird
protozoan
helminth
acarid
histopathology
Issue Date: 28-Dec-1992
Publisher: The Graduate School of Veterinary Medicine
Journal Title: Japanese Journal of Veterinary Research
Volume: 40
Issue: 4
Start Page: 161
End Page: 174
Abstract: A total of 534 psittacine and passerine birds consisting of 241 imported and 293 local birds were examined histologically. As a result, the following parasites were found : Giardia (86 cases), Knemido-coptes (26 cases), coccidia (10 cases), Ascaridia (6 cases), Cryptosporidium (5 cases), Sarcocystis (5 cases), tapeworm (4 cases), microfilaria (2 cases), Hexamita (1 case), and Spiroptera (1 case). High incidences of giardiasis and knemido-coptic infestation were detected in the local birds, but rarely in the imported birds. Giardial trophozoites were observed mainly in the duodenum of budgerigars (Melopsittacus undulatus). Knemidocoptic mites burrowed into the epidermis producing proliferative dermatitis in 25 budgerigars and l African Grey Parrot (Psittacus erithacus erithacus). This ectoparasite often infested the skin around the cloaca. Coccidiosis was seen only in the small intestines of the finch (Poephila gouldiae gouldiae), African Grey Parrot, Rainbow lory (Trichoglossus haematodus), Indian Ring-necked parakeet (Psittacula krameri manillensis) and peach-faced lovebird (Agapornis roseicollis). Two parrots (Amazona aestiva aestiva and Psittacus erithacus erithacus) and two budgerigars had intestinal cryptosporidiosis. Conjunctivitis associated with cryptosporidial infection was seen in a lovebird. Sarcocystis cysts containing crescent-shaped bradyzoites were found not only in the thigh and breast but also in the heart and cloacal muscles. Other organisms such as Ascaridia, tapeworm, microfilaria, Hexamita, and Spiroptera were clinically less significant. However, infections such as Giardia and Cryptosporidim might have zoonotic implications.
Type: bulletin (article)
URI: http://hdl.handle.net/2115/2407
Appears in Collections:Japanese Journal of Veterinary Research > Volume 40, Number 4

Submitter: 獣医学部図書室

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