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Master's Dissertation
DOI
https://doi.org/10.11606/D.91.2011.tde-19092011-091041
Document
Author
Full name
Alice Soares de Oliveira
E-mail
Institute/School/College
Knowledge Area
Date of Defense
Published
Piracicaba, 2011
Supervisor
Committee
Matushima, Eliana Reiko (President)
Camargo, Plinio Barbosa de
Vasconcellos, Silvio Arruda
Title in Portuguese
A interface entre pequenos mamíferos silvestres e animais domésticos em área fragmentada do alto Paranapanema, estado de São Paulo, Brasil
Keywords in Portuguese
Animais domésticos
Ecossistemas agrícolas
Mamíferos silvestres
Zoonoses.
Abstract in Portuguese
A Fazenda Três Lagoas, localizada no município de Angatuba, região do Alto Paranapanema (centro-sul do Estado de São Paulo), é uma área na qual houve introdução de espécies exóticas, como Eucalyptus sp e Brachiaria sp, que fragmentaram o habitat de cerrado original. Uma vez em que foi estabelecida atividade humana em um ambiente antes natural, houve expansão do contato entre humanos e animais domésticos com as populações de animais silvestres; sendo a influência destes fatores sobre o ecossistema local ainda pouco conhecido. O presente estudo teve como objetivo pesquisar a exposição de pequenos mamíferos silvestres e animais domésticos da região a agentes infecciosos e transmissores de zoonoses (Leptospira spp., Lyssavirus, Toxoplasma gondii, Neospora caninum e Rickettsia spp.). O levantamento dos patógenos nos animais silvestres revelou resultados sorológicos positivos para Leptospira spp. (5,5%, n= 73), Rickettsia spp. (7,9%, n=38) e Toxoplasma gondii (16,1%, n= 56). Em relação aos animais domésticos, foram encontrados 40% de cães (n=10) soropositivos para N. caninum, 20% de soropositivos para Leptospira spp. e T. gondii (n=10), e 23,27% dos cães (n=11) apresentaram títulos de anticorpos menores ou iguais a 0,5 UI/ml para Raiva. Os bovinos (n=42) apresentaram resultados sorológicos positivos para N. caninum (23,8%) e Leptospira spp. (40,5%). 47,6% do gado não havia sido vacinado ou a vacinação para o vírus rábico era desconhecida. Dos 22 bovinos conhecidamente vacinados para a Raiva, 36% foram pouco reagentes ao exame sorológico. Os resultados apresentados, além de contribuírem para a avaliação do status sanitário local, contribuem para o maior conhecimento da interface entre fauna doméstica e silvestre em agroecossistemas.
Title in English
The interface between wild small mammals and domestic animals of the fragmented area from High Paranapanema, Sao Paulo state, Brazil
Keywords in English
Agricultural ecosystems
Domestic animals
Wild mammals
Zoonoses.
Abstract in English
Três lagoas farm, which is located in Angatuba municipality, in High Paranapanema (southeast of São Paulo state) is an area where exotic species were introduced, such as Eucalyptus sp and Brachiaria sp, which fragmented the habitat in the original Cerradão (a tropical savanna ecoregion). Once the human activity has been established in a natural environment, the contact among human beings and domestic animals with wild animal populations has increased. Nevertheless, the influence of such factors on the ecosystem has not been clarified yet. The aim of the present study was to research the exposition between wild small mammals and domestic animals of this area against infecctious and transmitters of zoonoses agents (Leptospira spp., Toxoplasma gondii, Lyssavirus, Neospora caninum and Rickettsia spp.). The raising of pathogens in the wild animals revealed positive serological results for Leptospira spp. (5,5%, n= 73), Rickettsia spp. (7,9%, n=38) e Toxoplasma gondii (16,1%, n= 56). In relation to the domestic animals, were showed 40% of dogs (n=10) seropositives for N. caninum, 20% were seropositives for Leptospira spp. and T. gondii, and 23.7% of dogs presented antibody titers less than or equal to 0,5 UI/ml for Rabies. The cattle (n=42) had serologic results positives for N. caninum (23,8%) and for Leptospira spp. (40,5%). 47.6% of the cattle had not been vaccinated or vaccination for the rabies virus was unknown. Of the 22 cattle known to be vaccinated for rabies, 36% were less reactive to serologic test. These results presented, besides evaluating the local sanitary status, they can contribute to the greater understanding of the interface between domestic and wild fauna in agricultural ecosystems.
 
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Publishing Date
2011-09-28
 
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