Sarcocystosis in mink (Mustela vison)

This report describes the clinical, microscopic, and ultra-structural findings in mink with muscular sarcocystosis. Three 2-3-moold mink were killed because they were ill with signs of progressive neurological disease. One mink had variable numbers of sarcocysts in multiple skeletal muscles. Sarcocy...

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Bibliographic Details
Published in:The Journal of parasitology 1997-12, Vol.83 (6), p.1198-1201
Main Authors: Ramos-Vara, J.A. (Michigan State University, East Lansing, MI.), Dubey, J.P, Watson, G.L, Winn-Elliot, M, Patterson, J.S, Yamini, B
Format: Article
Language:English
Subjects:
Animal protozoal diseases
Animals
Biological and medical sciences
BRADYZOITES
BRAIN
Brain - parasitology
Brain - pathology
Brain - ultrastructure
CASE STUDIES
Cell Movement
CELL STRUCTURE
CYSTS
DEVELOPMENTAL STAGES
DIAGNOSIS
DIMENSIONS
Infectious diseases
Lymphocytes - pathology
Medical sciences
METROCYTES
MICHIGAN
Microtubules
Mink
Mink - parasitology
MINKS
Muscle, Skeletal - parasitology
Muscle, Skeletal - pathology
Muscle, Skeletal - ultrastructure
MUSCLES
Parasitic diseases
Parasitology
Protozoal diseases
PROTOZOAL INFECTIONS
Research Notes
SARCOCYSTIS
Sarcocystis - classification
Sarcocystis - isolation & purification
Sarcocystis - ultrastructure
Sarcocystosis
Sarcocystosis - parasitology
Sarcocystosis - pathology
Sarcocystosis - veterinary
Sarcocysts
SIZE
SKELETAL MUSCLE
SYMPTOMS
TISSUE ULTRASTRUCTURE
ULTRASTRUCTURE
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Description
Summary:This report describes the clinical, microscopic, and ultra-structural findings in mink with muscular sarcocystosis. Three 2-3-moold mink were killed because they were ill with signs of progressive neurological disease. One mink had variable numbers of sarcocysts in multiple skeletal muscles. Sarcocysts were up to 300 µm in long and 20 µm wide. Ultrastructurally, the sarcocyst wall had numerous elongated 1.7-2.0-µm x 250-nm villar protrusions (VP). The VP had microtubules and irregularly distanced minute undulations. Both metrocytes and bradyzoites were present in sarcocysts. The mink with sarcocysts in muscles also had nonsuppurative meningoencephalitis and meningomyelitis. Similar brain lesions were found in other 2 mink from the same farm, but sarcocysts were not observed in the skeletal muscle of these animals. This is the first report of muscular sarcocystosis in mink.
ISSN:0022-3395
1937-2345
DOI:10.2307/3284389