Prevalência e distribuição espacial da cisticercose e fasciolose bovina no estado de Goiás
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2017-03-08
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Universidade Federal de Goiás
Resumo
Amongst the several parasite-diseases that may be found on the bovine species slaughter
line, cysticercosis surely is the most frequent one. Besides being a zoonosis and a public
health issue, it also causes great economic losses on the Brazilian meat productive chain. On
the other hand, fasciolosis, also considered a zoonosis, has a lower occurrence when
compared to cysticercosis, fact that may be due to its epidemiologic dynamics. Aiming to learn
the level of infection of these zoonosis in the bovine herd of the state of Goiás, this project
was undertaken with the scope of determining the prevalence and spatial distribution, as well
to evaluate the association with some epidemiologic variables with the occurrence of these
diseases and also to estimate economic losses inflicted on the producers and industries. A
retrospective study was carried out on a total of 23.255.979 animals slaughtered per year,
mesoregions and microregions. The data were used to create one epidemiologic map for
bovine cysticercosis and one for bovine fasciolosis, gathering all cities of the state of Goiás. A
prevalence of bovine cysticercosis on the state of Goiás of 0,53% (CI 95% 0,5295 – 0,5354),
where the percentage of viable cysticercosis was 42,31%, non-viable cysticercosis 57,69%
and the presence of bovine fasciolosis was de 0,0026% (CI 95% 0,0024 – 0,0028). The
mesoregion Centro presented a greater chance (OR = 4,44) of finding positive cattle for
cysticercosis when compared to the mesoregions Norte (OR = 1) and Nordeste (OR = 1,02),
whilst the mesoregions diagnosed with greater chances of finding animals positive for
fasciolosis, due to having a greater effective herd (p ≤ 0,05), were Noroeste, Sul, part of the
region Centro and two cities of the region Leste of the state. The losses estimated for the
evaluated period, from 2007 to 2014, ranged from R$ 64.809.817,50 (US$ 20.574.545,24)
due to the presence of cysticercosis, and around R$ 15.072,75 (US$ 4.785) due to the
presence of Fasciola hepatica in bovine liver. Such results outline the importance of developing
strategic measures and action policies to try and control the spreading of these relevant
zoonosis.
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AQUINO, F. M. Prevalência e distribuição espacial da cisticercose e fasciolose bovina no estado de Goiás. 2017. 113 f. Dissertação (Mestrado em Ciência Animal) - Universidade Federal de Goiás, Goiânia, 2017.