Parasitos helmintos intestinais em Saguinus bicolor (Spix, 1823) (Primates, Callitrichidae)

Abstract

This work had as main objective, to evaluate the fauna of helminths found in the stomachs and intestines of the Sauins de Coleira (Saguinus bicolor) run over in the fragment of the UFAM University Campus, which were deposited in the freezers of the Sauim de Coleira project during the last 18 years. The search for adult helminths was carried out in the stomachs and intestines removed from the thawed individuals. Two species of helminths were found: Prostenorchis elegans (Acanthocephala) and Subulura sp. (Nematoda), both new records for Saguinus bicolor. 59 sauins were necropsied; 36 males and 20 females, the total prevalence of infection was 52.54% (31/59), 52.77% of males were infected and 55% of females were also infected. Of the 31 individuals positive for helminths, 29 (93.54%) were infected with Acanthocephala, five (16.12%) with Nematoda, and three (9.67%) with both phyla. 355 parasitic specimens were found, being 344 Acanthocephala and 11 Nematoda. We did not find any significant difference when comparing the number of parasites between males and females, nor did we find any correlation with rainfall when we performed the analyzes. Among the specimens used, there were six individuals that I considered sick, due to the history of the tipping book of the Sauim de Coleira Project, where the Sauim who arrived were registered, thus, comparing these individuals with the others without a history of illness, the difference was significant. The month with the highest incidence of parasites was January. A number of factors may be influencing the dynamics of the parasite x host relationship, seasonality, phenology, sauim's hierarchical position, hormonal rates, factors that need to be better evaluated. Continuing to study this relationship can be an important tool for the study of the conservation of this endangered primate, which is the Sauim de Coleira.