Sarcocystis miescheriana infection in domestic pigs (Sus scrofa) in the Philippines

College

College of Science

Department/Unit

Biology

Document Type

Article

Source Title

Journal of Parasitology

Volume

87

Issue

4

First Page

938

Last Page

939

Publication Date

1-1-2001

Abstract

Sarcocystis miescheriana sarcocysts were identified in skeletal muscles of 9 (27%) of 33 swine slaughtered for human consumption. Sarcocysts were 144-180 μm × 20-38 μm in size. Ultrastructurally, the cyst wall resembled the type 10 sarcocyst wall. The villar protrusions (VP) were 3-4.5 μm long and 0.6-1.2 μm wide and had prominent longitudinally arranged microtubules extending from the VP tips to the granular layer (=ground substance). The parasitophorous vacuolar membrane with its underlying electron-dense layer (EDL) measured 25 nm in thickness. The base of the VP exhibited minute (0.42-0.87 μm) bulblike inpocketings. Each VP had 80-90 microtubules situated underneath the EDL. The granular layer was 0.5-1.2 μm thick, and contained hairlike microtubules continuous with those of the VP core. This is the first report of S. miescheriana in Philippine domestic pigs Sus scrofa.

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Digitial Object Identifier (DOI)

10.1645/0022-3395(2001)087[0938:smiidp]2.0.co;2

Disciplines

Biology

Keywords

Sarcocystosis in animals--Philippines; Wild boar—Diseases--Philippines

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