Megabacteriose em emas (Rhea americana) no Estado do Rio Grande do Sul, Brasil

Segabinazi, Stefanie Dickel; Flores, Maria Luiza Rodrigues; Kommers, Gláucia D.; Barcelos, Aléverson da Silva; Veit, Dalvan Carlo; Eltz, Rosângela Dariva

doi:10.1590/s0103-84782004000300050

Cited by 4 publications

(23 citation statements)

References 3 publications

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“…A megabacteriose é uma doença caracterizada por baixa mortalidade e alta morbidade, sendo encontrados sinais de acometimento gastrointestinal, tais como diarreia, vômito, fezes com sangue, associados ou não à progressiva perda de peso, caquexia, anorexia ou normorexia (MARTINS et al, 2006, MUNHOZ et al, 2008. Ainda há relatos de desuniformidade do lote, depressão, fraqueza, letargia, problemas de empenamento, aumento da conversão alimentar, além de dramática atrofia dos músculos peitorais, acúmulo de fezes ao redor da cloaca, palidez de mucosas, queda da produção de ovos, baixo ganho de peso (WERTHER et al, 2000;SEGABINAZI et al, 2004).…”

Section: Sinais E Lesõesunclassified

“…É caracterizada como uma doença de alta morbidade e mortalidade bastante variável podendo chegar em 100% do lote principalmente em animais jovens, em emas, tucanos, e em animais imunossuprimidos (SEGABINAZI et al, 2004;MARTINS et al, 2006;MUNHOZ et al, 2008).…”

Section: Sinais E Lesõesunclassified

“…O diagnóstico da infecção baseia-se em histórico, anamnese, sinais clínicos, microscopia direta de impressão fresca da mucosa de ventrículo ou proventrículo, cultura de amostras de mucosa ventricular e proventricular, histopatológico, necropsia e presença do agente nas fezes (WERTHER et al, 2000;SEGABINAZI et al, 2004;MARTINS et al, 2006;MUNHOZ et al, 2008).…”

Section: Diagnósticounclassified

“…As alterações da mucosa do ventrículo, são as lesões mais referenciadas pelos autores (WERTHER et al, 2000;SEGABINAZI et al, 2004;MARTINS et al, 2006 a moela, além de secreção leitosa na mesma, o aumento e impactação de proventrículo foram notados em codornas. Estes mesmos autores referem hipertrofia e irregularidade das glândulas proventriculares em frangos.…”

Section: Lesões Pós Mortemunclassified

“…Segundo Segabinazi et al, (2004) e Martins et al, (2006), esta afecção tem sido relatada em alguns países e em diversas espécies de aves tais como, periquito (Melopsittacus undulatus), canário (Serinus canarius), ema (Rhea americana), avestruz (Struthio camelus), mandarim (Taeniopygia guttata), tucano (família Ramphastidae), pomba (família Columbidae), codorna japonesa (Coturnix coturnix japonica), galinha (Gallus gallus) e peru (Meleagris gallopavo).…”

Section: Introductionunclassified

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Megabacteriose: Macrorhabdus ornithogasterem aves - Revisão

Queiros¹,

Carvalho²,

Pita³

2011

Pubvet

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ResumoO Macrorhabdus ornithogaster, agente das Megabacterioses, de forma leveduriforme, é encontradado na flora normal do estômago de aves (proventrículo). Sob circunstâncias inespecíficas, o equilíbrio hospedeiro-fungo é rompido e os sinais clínicos da chamada "Síndrome Light Going" se manifestam. O agente M. ornithogaster tem sido diagnosticado em laboratório como causa de doença em uma ampla diversidade de espécies de aves, com ampla variação no grau de morbidade e mortalidade.

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Section: Sinais E Lesõesunclassified

Section: Diagnósticounclassified

Section: Lesões Pós Mortemunclassified

Section: Introductionunclassified

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Megabacteriose: Macrorhabdus ornithogasterem aves - Revisão

Queiros¹,

Carvalho²,

Pita³

2011

Pubvet

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Ocorrência de micoses e pitiose em animais domésticos: 230 casos

Galiza¹,

Silva²,

Caprioli³

et al. 2014

Pesq. Vet. Bras.

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glaukommers@yahoo.com A retrospective study was performed to determine the main mycoses and oomycosis that affected domestic animals diagnosed in the Laboratório de Patologia Veterinária (LPV) of the Universidade Federal de Santa Maria (UFSM). A total of 29,686 exams (9,487 necropsy reports and 20,199 biopsy reports) performed between January 1990 and December 2012 were analyzed. Two hundred and thirty cases (78% of mycoses and 22% of pythiosis) were found. Data about epidemiology, clinical signs, gross and histologic lesions were obtained from the reports. In two cases the fungi observed were not identified. The main diseases observed, in descending order of prevalence, were: pythiosis, candidiasis, aspergillosis, zygomycosis, dermatophytosis, mallasseziosis, cryptococcosis, megabacteriosis, and sporothrichosis. Others diseases with only one cases each were histoplasmosis and pneumocystosis. Pythiosis affected mainly horses and the mycosis affected mainly companion animals (dogs and cats).INDEX TERMS: Mycoses, pythiosis, domestic animals, veterinary pathology.

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Macrorhabdus ornithogaster in ostrich, rhea, canary, zebra finch, free range chicken, turkey, guinea-fowl, columbina pigeon, toucan, chuckar partridge and experimental infection in chicken, japanese quail and mice

Martins¹,

Horta²,

Siqueira

et al. 2006

Arq. Bras. Med. Vet. Zootec.

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Macrorhabdus ornithogaster in ostrich, rhea, canary, zebra finch, free range chicken, turkey, guinea-fowl, columbina pigeon, toucan, chuckar partridge and experimental infection in chicken, japanese quail and mice [Macrorhabdus ornithogaster em avestruzes, ema, canário, mandarim, galinha, peru, galinha da Angola, pombo doméstico, rolinha, tucano, perdiz ABSTRACTSince 2000, Macrorhabdus ornithogaster "megabacteriosis" has been diagnosed in the avian diseases laboratory in a diversity of avian species and varied spectrum of disease. The disease in some species (chickens, turkeys, guinea fowls) was clinically characterized by emaciation, prostration, loss of appetite, cachexia and death, with a typically chronic course. A more acute disease was observed in finches (canary-Serinus and zebra-Taeniopygia) and budgerigars (Melopsittacus undulatus). The large rod shaped organism, visible from 100 times magnification, with and without staining, could be detected in sick and also in reasonably normal individuals of some species, such as chickens, turkeys, quails and pigeons. In rheas (Rhea americana), ostriches (Struthio camelus), canaries, zebra-finches, guinea-fowl (Numida meleagris) and budgerigars. The disease was severe, causing to up to 100% mortality. The infection could be detected in some species along with other infectious or disease problems, such as endoparasites (helminths, coccidia) and ectoparasitism (order Mallophaga or/and order Acarina). The cultivation of M. ornithogaster was successfully achieved in solid and liquid media, originated from chickens (four isolates), guinea fowl (1 isolate), chuckar partridge (1 isolate) and canary (1 isolate). A very interesting finding at microscopy was motility of M. ornithogaster, as detected both in cultures obtained on agar for pathogenic fungi and passaged into thioglycolate broth, as well as on samples observed in wet preparations from in vivo. Differences in colony aspects were noted among the isolates. Experimental infections were attempted in chicken and japanese quail, using a chicken isolate, allowing the detection of the organism in the proventriculus and liver in apparently normal birds. One chicken isolate was injected intraperitoneally in Balb/c mice and resulted in 100% mortality.

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Megabacteriose em emas (Rhea americana) no Estado do Rio Grande do Sul, Brasil

Abstract: RESUMO Com o objetivo de avaliar as causas de mortalidade

Cited by 4 publications

References 3 publications

Megabacteriose: Macrorhabdus ornithogasterem aves - Revisão

Megabacteriose: Macrorhabdus ornithogasterem aves - Revisão

Ocorrência de micoses e pitiose em animais domésticos: 230 casos

Macrorhabdus ornithogaster in ostrich, rhea, canary, zebra finch, free range chicken, turkey, guinea-fowl, columbina pigeon, toucan, chuckar partridge and experimental infection in chicken, japanese quail and mice

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