Gota úrica visceral em coruja suindara (Tyto alba) de vida livre

Sales, Indiara dos Santos; Nogueira, Carlos Henrique de Oliveira; Silveira, Leonardo Serafim da

doi:10.1590/s0100-736x2015000200013

Cited by 5 publications

(5 citation statements)

References 9 publications

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“…The results observed here are both consistent and divergent with previous reports of visceral gout in seabirds and other wild and captive birds (e.g.poultry) [3,17,26,29,30,34,35,42]. Although scarse, similar prevalence of gout was observed among free-ranging birds, including 3.2% observed in different species of seabirds (this study), 1.2% in Puffinus puffinus [12], 1.7% in raptors [28], 0.4% in Phasianus colchicus [6], and 4.7% affecting captive/companion birds [30], but it was considered lower when compared to 21.5% and 23.3% affecting captive/broilers [36,39].…”

Section: Discussionsupporting

confidence: 78%

Visceral Gout in Coastal and Oceanic Seabirds in Paraná, Southern of Brazil

Nobrega

Domiciano

Domit

et al. 2020

Acta Scientiae. Vet.

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Background: Owing to the abundance, wide distribution, long life cycles and higher positions in the throfic levels, seabirds are considered sentinels of hazards and negative anthropogenic impacts to marine ecosystems. Gout is a a common disease affecting birds, but also occurs in other taxa, including mammals and reptiles. The aim of this study was to elucidate the occurrence and pathological findings of gout cases in different species of seabirds, including biological and ecological factors that may contribute to disease.Cases: The urate crystals were observed in ten seabirds stranded, classified in eight species: four oceanic species - two Puffinus puffinus, one Macronectis giganteus, one Thalassarche melanophris, one Calonectris sp. and four coastal species - one Fregata magnifiscens, two Sula leucogaster, one Phalacrocorax brasilianus and one Rynchops niger. A total of seven animals were stranded alive and three were found dead; four animals were male and six were female; six were juveniles and four were mature. The nutritional condition was cachectic in four animals, poor in five and fair in one. The main clinical sign in alive animals was dehydration (7/7; 100%). The treatment consisted of standard support including fluid therapy and temperature stabilization; in addition, vitamins, amino acids, minerals and antibiotics (sulfonamide or enrofloxacin) were given, but the animals died between 1 and 13 days after rehabilitation entrance. Gout was associated with cachectic condition and autumn stranding (in comparison with summer stranding). The main macroscopic findings were observed in the kidneys, which were whitish and enlarged and all had microscopic evidence of multifocal, mild to marked renal crystal urate deposition. In two cases, urates deposition were observed in multiple organs, including liver, spleen, lung, epicardium and kidney in two cases, indicating severe visceral gout.The gout was considered the ultimate cause of death in three cases, and in the remaining cases, the main lesion associated with death was trauma (n = 2), infectious enteritis (n = 2), systemic infection (n = 1), myocardial necrosis (n = 1) and cachexia syndrome. The contributing factors for urate deposition were metabolic imbalances, chronic dehydration and overdoses of protein supplements. Discussion:The ten cases described above constitute a rare report of visceral gout in free-living and in rehabilitation seabirds and contributes towards understanding the prevalence and pathogeny of gout in stranded oceanic and coastal animals off southern Brazil. Similar prevalence of gout was observed among free-ranging birds of other reports,but it was considered lower when compared to 21.5% and 23.3% affected captive/broilers. The difference observed may be influenced by the population analysed, but also by the gout pathogeny and environmental conditions. Among the possible causes of gout, dehydration was observed in all gout-affetected animals stranded alive, a change usually observed in debilitated/stranded animals that probably has contributed to the disease. Additionally, the poor/cachectic condition noticed in the majority of seabirds indicates a nutritional disorder, also a cause promoting visceral gout. In the present study, accumulation of urate crystals was predominantly limited to the kidneys and associated with inflammatory infiltrate, suggesting a chronic process. The results of this study support the hypothesis that visceral gout is a complex consequence of multiple factors affecting both free-living and rehabilitated seabirds. Therefore, further investigation of the other possible causes, frequency and consequences for coastal and oceanic species is indispensable.

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Section: Discussionsupporting

confidence: 78%

Visceral Gout in Coastal and Oceanic Seabirds in Paraná, Southern of Brazil

Nobrega

Domiciano

Domit

et al. 2020

Acta Scientiae. Vet.

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“…As lesões encontradas no bobo-pequeno foram a provável causa do óbito do animal, pois estas podem ter provocado o colapso dos principais órgãos. Todas as características macro e microscópicas observadas no bobo-pequeno corroboram as alterações relatadas na literatura para gota úrica visceral em aves (Coppola et al, 2013;Sales et al, 2015). Contudo, não foi possível identificar a origem da doença.…”

Section: Discussionunclassified

“…A doença já foi descrita para algumas espécies de aves brasileiras. Sales et al (2015) fizeram o primeiro relato de gota úrica visceral em uma espécie de rapinante de vida livre, a coruja suindara (Tyto alba). Os autores indicaram a patologia como responsável pela morte do indivíduo, devido à pericardite, à peri-hepatite e à nefrite diagnosticadas na microscopia.…”

Section: Discussionunclassified

Gota úrica visceral em bobo-pequeno (Puffinus puffinus) no sul do Brasil

Fink

Drumond

Basílio

et al. 2018

Arq. Bras. Med. Vet. Zootec.

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RESUMO A gota úrica visceral é uma doença que acomete répteis, aves e mamíferos. Caracteriza-se por depósitos de cristais de urato e ácido úrico em diferentes órgãos da região visceral. O objetivo deste trabalho foi relatar um caso de gota úrica visceral em um indivíduo de bobo-pequeno (Puffinus puffinus) encontrado morto no litoral norte de Santa Catarina, sul do Brasil. No período de 20 de agosto de 2015 a 20 de abril de 2016, as praias dos municípios de Araquari, Barra do Sul, São Francisco do Sul e Itapoá foram monitoradas diariamente para o registro e a recuperação de tetrápodes marinhos mortos, incluindo aves marinhas. Foram encontrados e necropsiados 84 indivíduos. Um deles apresentou o pericárdio aderido ao miocárdio e com a coloração esbranquiçada. Os rins, o fígado e os pulmões continham inúmeros pontos esbranquiçados. A ocorrência dessa patologia na espécie foi de 1,19%. Trata-se do primeiro relato de bobo-pequeno com gota úrica visceral encontrado no Brasil.

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“…The deposition of this nitrogenous compound in birds is usually caused by dehydration, excessive dietary protein consumption secondary to kidney damage [ 41 ], or excessive sodium consumption [ 25 ]. In captive birds, management errors that lead to dehydration or excess protein may be predisposing factors [ 42 ]. For the birds in this study, dehydration during transport and excess dietary protein were identified as the causes.…”

Section: Discussionmentioning

confidence: 99%

A Survey of Diseases in Different Species of Wild, Captive, and Illegally Traded Birds in Brazil

Lacerda,

de Magalhães Santos,

Lopes

et al. 2023

Animals

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Native and exotic avian species can act as reservoirs of pathogens, including bacteria and viruses, with conservation and public health implications. A retrospective study on the diagnosis and frequency of diseases in wild and exotic avian species was conducted. The occurrence of particular diseases was associated with the type of captivity or the bird’s origin. The investigation included macroscopic and microscopic descriptions and the molecular determination of the causative agent(s). Additional immunohistochemical (IHC) analysis, PCR, and genetic sequencing were conducted. A total of 243 cases were compiled for the study, mainly consisting of native wild species (39.1%) obtained from illegal trade. Primary infectious diseases, mainly parasitic (18.1%) and viral (17.7%), were the most common, although coinfections were substantial (18.1%) in birds rescued from trafficking. Fractures and neoplasms accounted for 3.7% and 3.3% of the cases, respectively. Parasitic and viral diseases were the most common in both exotic and wild birds. Chlamydia psittaci, a lethal and zoonotic bacterium, was an important cause of death, especially in native Psittaciformes. The recent detection of Psittacid alphaherpesvirus 5 (PsAHV 5) in exotic psittacines and the diagnosis of coinfections in trafficked birds highlight the importance of monitoring avian health to control potential pathogens that may endanger conservation efforts.

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Gota úrica visceral em coruja suindara (Tyto alba) de vida livre

Cited by 5 publications

References 9 publications

Visceral Gout in Coastal and Oceanic Seabirds in Paraná, Southern of Brazil

Visceral Gout in Coastal and Oceanic Seabirds in Paraná, Southern of Brazil

Gota úrica visceral em bobo-pequeno (Puffinus puffinus) no sul do Brasil

A Survey of Diseases in Different Species of Wild, Captive, and Illegally Traded Birds in Brazil

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