Helmintofauna de cairina moschata doméstica (anseriforme: anatidae) na ilha de marajó, Pará

Abstract

The occurrence of endoparasites in Muscovy ducks is a point of concern in the different rearing systems, as they promote major economic losses. The subspecies Cairina moschata domestica is the most bred in Brazil. The natural landscapes ofMaraj ó are well diversified with terra firme, floodplain, igapó, mangroves with marine influence and natural fields, which can be a propitious environment for helminths in these birds. The objective of this research was to identify the helminthofauna of Muscovy ducks bred extensively in the municipality of Soure, Marajó Island, Pará. 33 specimens of C. moschata domestica from family units of the municipality of Soure were purchased. Samples of the organs of the celomatic cavity and respiratory system, were packed in 1L plastic bags and transported refrigerated in expanded polymer boxes to the Laboratory from June 2018 to August 2019. The helminths were harvested and processed for light microscopy and Scanning Electron microscopy as well as counted. for ecological analysis of parasitism (parasitic prevalence, intensity and abundance). The Nematoda Phylum was the most representative group occurring in 93.93% (n = 31) of birds, and the Platyhelminthes / Trematoda Class Phylum with 6.06% (n = 2), while Cestoda and Acanthocephala did not occur in either bird. birds. Studies on free-living bird helminths allow us to know more about parasitological Índices, adding data on the distribution of parasites and their hosts in the Amazon region, as well as contributing to new parasitic, morphological and epidemiological data for this region.