Publications

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first report of tyzzeria parvula (kotlán, 1933) klimes, 1963 (apicomplexa: eimeriidae), in swan goose anser cygnoides l., 1758, in brazil.this is the first description of tyzzeria parvula from the swan goose (anser cygnoides) in the state of rio de janeiro, brazil. fecal samples were collected from 15 swan geese, but only four of them shed oocysts in feces. after sporulation, the oocysts were spherical to sub-spherical, and measured 12.4 +/- 1.0 (11-15) x 10.4 +/- 0.8 mum (8-12). they presented a shape index of 1.2 (1.0-1.4), with a bi-layered wall that was 0.7 +/- 0.1 mum (0.6-0.8) thick. the outer side was smooth and colorless, ...200820059870
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