Occurrence of natural infection by Giardia sp. in goats and sheep reared in extensive system in cerrado of Piauí, Brazil / Ocorrência da infecção natural por Giardia sp. em caprinos e ovinos criados em sistema extensivo no cerrado do Piauí, Brasil

Raylson Pereira de Oliveira, Antônia Taline Sousa Aguiar, Sávio Mateus Reis de Carvalho, Cosme Nogueira da Silva, Glenda Lídice de Oliveira Cortez Marinho, David Germano Gonçalves Schwarz, Pollyana Oliveira da Silva, Márcia Paula Oliveira Farias, Jeane Gomes de Matos


The present study aimed to identify natural infection by Giardia sp. in fecal samples collected from goats and sheep raised in an extensive system in the Cerrado biome of Piauí, Brazil. Two hundred fecal samples from goats and sheep (100 for each species) were collected from 6 properties located in the municipality of Bom Jesus, Piauí, Brazil. In addition, data regarding properties and animals, including species, age, sex, and identification number, were collected. The samples were processed using the centrifugal-flotation technique in zinc sulfate and analyzed using optical microscopy (magnification 40×). Of the 200 samples analyzed, 70 (35%) were positive for Giardia sp., with goats exhibiting an absolute and relative frequency of 37/100 (37%) and adult females being more affected (25/62 [40.32%]), while 33/100 (33%) sheep were positive, with greater positivity also observed in adult females (17/55 [30.90%]). Results of this study demonstrate for what is to our knowledge the first time that goats and sheep raised extensively are exposed to infection by Giardia sp. in Bom Jesus, Piauí. This is also presumably the first report to describe giardiasis in goats and sheep in the state of Piauí, Brazil.


giardiasis, small ruminants, protozoan.


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DOI: https://doi.org/10.34117/bjdv6n10-171


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