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Estudo da prevalência de Mycoplasma spp. em psitacídeos de dois criadouros do Distrito Federal

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Repositório Institucional da Universidade de Brasília
Keywords
  • Aparelho Respiratório - Doenças
  • Micoplasmose Em Animais
  • Veterinária
  • Aves - Criação
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Abstract

In modern commercial poultry worldwide, mycoplasmosis is one of the major reasons of economic loss. There are reports of the Mycoplasma spp agent in wild hosts all over the world, including in Brazil, where Mycoplasma gallisepticum e Mycoplasma synoviae are the most reported species. The study aimed at: a) verifying the occurrence of Mycoplasma spp., specially M. gallisepticum e M. synoviae, in parrots in captivity in Federal District, Brazil by polymerase chain reaction (PCR); b) comparing haematological and biochemical profiles of infected and uninfected animals; c) evaluating if the environmental conditions in which they are created could foster greater infection; d) comparing the microflora isolated from the lower respiratory tract of infected and uninfected animals by tracheal swab. There were 135 animals sampled among 23 species of South American parrots. The animals came from two distinct captivities and were apparently healthy. The survey results identified 3.7% (05/135) of Mycoplasma spp and none of them were positive for M. gallisepticum ou M. synoviae. Microbiological culture of lower respiratory tract was isolated from 120 parrots. A total of 12 types of bacteria and yeast, and 11 types of fungus were isolated. There weren’t statistical differences in the frequency between males and females, neither in hematology parameters between infected and uninfected animals. When positive animals for mycoplasma were assessed apart, they had at least one change in their exams. There were statistical differences between the captivities in total count of red blood cells, concentration of hemoglobin, of aspartate aminotransferase and of uric acid. The presence of hypoalbuminemia among individuals that had the highest diversity of agents isolated tracheal was statistical different too. The vast majority of animals had at least one microorganism isolated from its lower respiratory tract without presenting any clinical signs of respiratory character.

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