Pesquisa de Mycoplasma em aves da família Psittacidae mantidas em diferentes cativeiros no Brasil Central

Carvalho, A. M. De; Andrade, María Auxiliadora; Linhares, Guido Fontgalland Coelho; Jaime, Valéria S

doi:10.1590/s0100-736x2017001000019

Cited by 6 publications

(7 citation statements)

References 19 publications

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“…The results found for Psittaciformes contrast the studies of Silva et al (2016) and Carvalho et al (2017) when assessing the presence of Mycoplasma spp. in asymptomatic parrots under human care.…”

Section: Resultscontrasting

confidence: 95%

“…Silva et al (2016), when analyzing 85 parrots of different species from a zoo in Pernambuco, reported the presence of Mycoplasma spp. in 16.47% of the birds, however these mycoplasmas were not identified as MG or MS. Carvalho et al (2017), when evaluating 300 samples of CETAS parrots, commercial and conservation breeding, observed positivity for M. gallisepticum (MG) in 21.6% (16/74) in CETAS, 15.7% (19/121) in commercial breeding, and 6.7% (7/105) in conservationist, while for MS the occurrences were 2.7 % (2/74) in CETAS, 0.0% (0/121) in commercial breeding and 1.9% (2/105) in conservationist. MG was still described with a high occurrence by Gomes et al (2010) in parrots from the seizure of trafficking with the positivity of 85.4%.…”

Section: Resultsmentioning

confidence: 99%

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Investigation of Mycoplasma spp. in birds of the Rio de Janeiro Zoo by isolation and PCR

et al. 2020

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Brazil is one of the countries with the most abundant avifauna in the world. The confinement of birds associated with close contact with other animals and humans favor the spread of agents of respiratory diseases. Among them, mycoplasmas can cause asymptomatic or apparent disease that manifests in birds by coughing, sneezing, rales, conjunctivitis, ocular and nasal discharge. Several described mycoplasmas cause disease in birds, especially Mycoplasma gallisepticum(MG) andMycoplasma synoviae(MS). The diagnosis ofMycoplasmaspp. can be done by clinical observation and laboratory analysis. Molecular diagnosis by PCR was boosted by its speed, sensitivity, and low cost of agent isolation techniques that take up to 21 days to complete. This study aimed to verify the occurrence ofMycoplasmaspp. in birds of the Rio de Janeiro Zoo (Rio Zoo), by isolation and PCR. Of the total 635 birds from the Rio Zoo, 81 were studied for detection ofMycoplasmaspp., when taken for routine health assessment exams. These birds belonged to the following orders: Psittaciformes (45), Accipitriformes (18), Galliformes (7), Piciformes (5), Strigiformes (4), Falconiformes (1) and Cariamiformes (1), all individuals already identified by microchip or leg-ring. There was no isolation of mycoplasmas in any of the samples tested, whereas, in the PCR, 62.96% (51/81) were positive, with 1.96% (1/51) identified as MG and 19.61% (10/51) as MS, representing 1.23% (1/81) and 12.34% (10/81) of the total population studied. PCR was shown to be a more effective technique than isolation in the detection ofMycoplasmaspp. in birds. It was possible to detect mycoplasmas in birds from Riozoo with no clinical respiratory signs, with higher MS prevalence than MG. The positivities forMycoplasmaspp., MS, and MG were different among the orders studied, being the highest occurrence in birds of prey, followed by Galliformes and Piciformes. The presence of MG and MS in birds of Rio de Janeiro Zoo confirms the circulation of these agents and the need for further studies on the dissemination of mycoplasmas in zoos for the epidemiological analysis of these bacteria in these places.

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Section: Resultscontrasting

confidence: 95%

Section: Resultsmentioning

confidence: 99%

Investigation of Mycoplasma spp. in birds of the Rio de Janeiro Zoo by isolation and PCR

et al. 2020

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“…The presence of mycoplasmas in asymptomatic wild captive birds has already been reported in the study by Silva et al (2016) who observed a prevalence of 16.5% Mycoplasma spp. in 85 parrots and Carvalho et al (2017) who found percentages of 21.6%, 15.7% and 6.7% positivity in birds from, respectively, a Wild Animal Sorting Center, a commercial breeding site and a conservation breeding site and these results agree with what was found in our study. The presence of these free-living ducks close to captive birds in the zoo can pose a risk to health of susceptible birds and to species in recovery programs, since there is a possibility that Muscovy ducks are acting as reservoir of pathogenic mycoplasmas.…”

Section: Occurrence Of Avian Mycoplasmas In Free-living Muscovy-duckssupporting

confidence: 93%

Occurrence of Avian Mycoplasmas in Free-Living Muscovy-Ducks (Cairina Moschata)

Magalhães

Pereira

Machado

et al. 2020

Braz. J. Poult. Sci.

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“…Therefore, there was no evidence of susceptibility to Chlamydophila infection in the bird species included in the present study. Carvalho et al (2017) also observed the absence of speciesspecific predisposition to infection by a variety of pathogens (e.g. Mycoplasma gallisepticum, and M. synoviae) in captive psittacids in Goiás State, Brazil.…”

Section: Resultsmentioning

confidence: 81%

Clinical and molecular diagnosis of Chlamydophila in captive parrots in Pará State, Brazil

Araújo

Pereira

Silva

et al. 2019

SCA

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Parrots (Order Psittaciformes) are globally distributed birds that, together with members of the Columbiformes, represent the most susceptible animals, in regards to infection by Chlamydophila psittaci, which is an obligate, zoonotic, intracellular bacterium that causes chlamydiosis in domestic and wild birds and psittacosis in humans. The aim of the present study was to assess the occurrence of C. psittaci in Brazilian psittacids kept in conservation breeding sites in Pará State, Brazil. Cloacal and oropharynx swab samples were collected from 201 psittacids that were distributed among four breeding sites: Metropolitan Area of Belém (C1 and C2), Northeastern Pará (C3), and Low Amazon (C4). The samples were screened for C. psittaci using semi-nested PCR, and the resulting incidence data were analyzed using proportion and chi-square tests. Chlamydophila infection was confirmed for all the breeding sites, with an overall prevalence of 31.84%, and no species-specific predisposition was observed. Furthermore, 13.93% of the sampled birds eliminated the infectious agent by the cloaca, whereas 11.44% eliminated the agent by the oropharynx, and 6.47% eliminated the agent by both routes. Moreover, there was a significant difference between the incidence of Chlamydophila infection of breeding sites C2 and C3 (p=0.029), which yielded the smallest and largest number of diagnosed cases, respectively. In the present study, most of the birds (27.86%) were considered unapparent carriers of Chlamydophila infection, and only 3.98% of the birds yielded both a positive diagnosis and clinical signs of chlamydiosis.

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Pesquisa de Mycoplasma em aves da família Psittacidae mantidas em diferentes cativeiros no Brasil Central

Cited by 6 publications

References 19 publications

Investigation of Mycoplasma spp. in birds of the Rio de Janeiro Zoo by isolation and PCR

Investigation of Mycoplasma spp. in birds of the Rio de Janeiro Zoo by isolation and PCR

Occurrence of Avian Mycoplasmas in Free-Living Muscovy-Ducks (Cairina Moschata)

Clinical and molecular diagnosis of Chlamydophila in captive parrots in Pará State, Brazil

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