Ocorrência de Giardia spp. e Cryptosporidium spp. em pequenos ruminantes em propriedades das mesorregiões metropolitana de Belém e do nordeste paraense.

Abstract

The protozoa of the genus Cryptosporidium spp. and Giardia ssp. they are currently recognized as the main enteric pathogens with zoonotic potential that can cause diarrhea, abdominal pain, nausea and vomiting. They are considered important parasites of domestic animals. In the State Pará infections caused by these protozoa in sheep and goats are little studied. This work aimed to study the natural infection by Cryptosporidium spp. and Giardia spp. in goats and lambs, bred extensively in properties located in the metropolitan Mesoregions Belém and Pará Northeast, Pará State. Fecal Samples from ovine and caprine animals (<12 months) were obtained and submitted to coproparasitological and microscopic analysis. For the detection of cysts Giardia spp. samples were submitted to the routine test through direct research and microscopic observation of enteroparasite. For the detection of Cryptosporidium spp. was used the Ziehl-Neelsen modified or acid-fast staining. Excretion of Giardia spp. detected was 12.66% (19/150) of the analyzed samples, 17% (17/100) and 6% (3/50) in ovine and caprine species, respectively. Oocists Cryptosporidium spp. were observed in 8.66% (13/150) of the samples 7 % (7/100) in sheep and 12% (6/50) in goats. The incidence of both parasites on the same sample analyzed was observed in 3% (3/100) in sheep and 4% (2/50) in goats. The occurrence of Giardia spp. in sheep properties located in metropolitan Mesoregions Belém and Pará Northeast, was high on the occurrence in goats. The incidence of Cryptosporidium spp. in sheep showed no significant difference in relation to parasitism in goats, the same was observed for the parasitism by the two protozoa in the same sample analyzed.