We detected macroscopic Sarcocystis cysts in a Northern Shoveler (Anas clypeata) in the Lerma Marshes, State of Mexico, Mexico in February 2014. The 5.0×2.0-mm macrocysts in the breast muscle of the duck were ovoid and yellow. Using an optical microscope, we saw parasitic forms of a Sarcocystis sp. among muscular fibers; the cysts measured 3.5×1.1 mm. The external wall had a smooth surface and the internal wall had a spongy texture. We identified the macrocysts as Sarcocystis rileyi according to sequences of the 18S rRNA gene, 28S rRNA gene, and ITS-1 region. Sarcocystosis should be considered in similar assessments in wild waterfowl in Mexico. Awareness of S. rileyi among anatids in the Lerma Marshes will contribute to more-effective conservation and management actions.
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1 October 2016
Detection and Molecular Identification of Sarcocystis rileyi (Apicomplexa: Sarcocystidae) From a Northern Shoveler (Anas clypeata) in Mexico
Patricia Padilla-Aguilar,
Evangelina Romero-Callejas,
David Osorio-Sarabia,
José Ramírez-Lezama,
Nohemi Cigarroa-Toledo,
Carlos Machain-Williams,
Carlos Manterola,
Heliot Zarza
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Journal of Wildlife Diseases
Vol. 52 • No. 4
October 2016
Vol. 52 • No. 4
October 2016
Anas clypeata
Lerma
Mexico
Northern Shoveler
parasite
Sarcocystis rileyi