Análisis coproparasitológico de Akodon azarae (Rodentia, Cricetidae) en agroecosistemas pampeanos/Coproparasitological study of Akodon azarae (Rodentia, Cricetidae) in Pampas agroecosystems

MARÍA BUSCH; LORENA NOELIA ROJAS VÁSQUEZ; NORA BURRONI; MARIELA HAYDÉE MIÑO

Revista Argentina de Parasitología

Asociación Parasitológica Argentina (APA)

Lugar: La Plata; Año: 2020 vol. 9 p. 31 - 39

2313-9862

This work describes eggs found in fresh faeces (deposited in traps) of the Pampean grassland rodent Akodon azarae (Fischer) inhabiting cultivated field edges in Exaltación de la Cruz (Buenos Aires, Argentina). Samples were fixed in SAF solution, processed by the modified Ritchie technique and observed under optical microscope. Morphological and morphometric characteristics of eggs allowed us to identify the nematodes Stilestrongylus cf. azarai (prevalence: P = 63%), Trichuris cf. laevitestis (P = 35%) and cf. Spirurida (P = 10%), and the cestode Rodentolepis cf. nana (P = 5%). We discussed, taking in account the literature available about parasitic helminths of A. azarae and other rodents in the region, the taxonomic determination of the species identified based on the characteristics observed. Keywords: Helminths, coproparasitology, rodents, Argentina.