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1.
Braz. j. biol ; 84: e249169, 2024. tab, graf
Article in English | LILACS, VETINDEX | ID: biblio-1345546

ABSTRACT

Abstract The American Barn Owl (Tyto furcata) lives in urban, periurban and wild environments and feeds mainly on small rodents, meaning it has great importance in the biological control of pests. The aim of this work was to describe the reproductive, parental and eating habits of a pair of American barn owls naturally living outside a residence in the urban area of the municipality of Campos dos Goytacazes, Rio de Janeiro state, Brazil. A wood box was installed on an outside wall of the home, monitored by a video camera. A spreadsheet was created to keep track of the observations recorded. The female laid four eggs, and after an incubation period of 30-32 days all the eggs hatched, but only two chicks survived after cannibalism among the chicks. Initially, the male provided the food to the chicks and the female remained in the nest caring for the brood. After approximately a month, the female also began to leave the nest and return with prey, which was offered to the chicks, with the male also continuing this behavior. The chicks left the nest in September, 2017. The data obtained show the existence of cooperation and division of tasks between male and female owls during the reproductive period.


Resumo A coruja-das-torres americana (Tyto furcata) vive em ambientes urbanos e se alimenta principalmente de pequenos roedores, sendo de grande importância no controle biológico de pragas. O objetivo deste trabalho foi descrever os hábitos alimentares, parentais e reprodutivos de um casal de corujas-das-torres americanas, naturalmente vivendo fora de uma residência na zona urbana do município de Campos dos Goytacazes, estado do Rio de Janeiro, Brasil. Uma caixa de madeira foi instalada em uma parede externa da casa, monitorada por uma câmera de vídeo. Uma planilha foi criada para manter o controle das observações registradas. A fêmea pôs quatro ovos, e após período de incubação de 30-32 dias todos os ovos eclodiram, mas apenas dois filhotes sobreviveram após o canibalismo entre os filhotes. Inicialmente, o macho fornecia a comida aos filhotes e a fêmea permanecia no ninho cuidando da ninhada. Depois de cerca de um mês, a fêmea também começou a sair do ninho e voltar com a presa, que era oferecida aos filhotes, com o macho também continuando com esse comportamento. Os filhotes deixaram o ninho em setembro de 2017. Os dados obtidos mostram a existência de cooperação e divisão de tarefas entre corujas machos e fêmeas durante o período reprodutivo.


Subject(s)
Animals , Male , Female , Strigiformes , Reproduction , Brazil , Feeding Behavior
2.
Int. j. morphol ; 40(3): 860-866, jun. 2022. ilus, tab
Article in English | LILACS-Express | LILACS | ID: biblio-1385670

ABSTRACT

SUMMARY: The study of animal neurology has historically focused on the closest descendants of humans, such as monkeys and chimpanzees. Because of this, the neurology of birds remains poorly studied and understood by humans compared to other groups of animals. Thus, the objective was to describe the central nervous system to better understand its functioning, correlating the findings with the role it plays in the physiology and biology of birds, comparing species with different behaviors between herbivores and carnivores, filling gaps in the literature serving as subsidy for future research.


RESUMEN: El estudio de la neurología animal se ha centrado históricamente en los descendientes más cercanos de los humanos, como los monos y los chimpancés. Debido a esto, la neurología de las aves sigue siendo poco estudiada y comprendida, en comparación con la de otros grupos de animales. Así, el objetivo fue describir el sistema nervioso central para comprender mejor su funcionamiento, correlacionando los hallazgos con el rol que juega en la fisiología y biología de las aves, comparando especies con diferentes comportamientos entre herbívoros y carnívoros y llenando vacíos en la literatura que sirvan como base para futuras investigaciones.


Subject(s)
Animals , Parrots , Central Nervous System/anatomy & histology , Strigiformes
3.
Braz. j. biol ; 82: e237675, 2022. tab, mapas, ilus
Article in English | LILACS | ID: biblio-1249234

ABSTRACT

Several studies emphasize the use of owl pellets in small mammal inventories in natural areas harboring high richness of rare species, but few Brazilian Atlantic forest localities have been surveyed by this method. The present study documents the species composition and abundance of small mammals in the diet of Tyto furcata in an urban area of the municipality of Campos dos Goytacazes, Rio de Janeiro, Brazil, remarking on a new record of the dwarf mouse opossum genus Cryptonanus in the Atlantic forest. We analyzed 265 pellets regurgitated by a pair of T. furcata from November 2016 to September 2017 found in a nesting box. Analysis of the samples enabled finding a total of 596 individuals of four small mammal species. Mus musculus was predominant among the prey items (98.3%), while the native rodents Necromys lasiurus (1.3%) and Holochilus brasiliensis (0,17%) were much rarer. A single specimen of Cryptonanus sp. was identified among the diet items based on distinctive dental characters. The identification of this genus in the present study represents the second record in the state of Rio de Janeiro, and the sixth in the Atlantic Forest biome, suggesting that this marsupial occupies a wider ecological and biogeographic range. The present study underscores the relevance of owl pellets for small mammal surveys, even in urban and highly disturbed areas.


Vários estudos enfatizam o uso de pelotas de coruja em inventários de pequenos mamíferos em áreas naturais com elevada riqueza de espécies raras, mas poucas localidades da Mata Atlântica brasileira têm sido inventariadas por esse método. O presente estudo documenta a composição de espécies e abundância de pequenos mamíferos na dieta de Tyto furcata em uma área urbana do município de Campos dos Goytacazes, Rio de Janeiro, Brasil, discutindo a relevância de um novo registro de um raro marsupial do gênero Cryptonanus na Mata Atlântica. Foram analisadas 265 pelotas regurgitadas por um casal de T. furcata entre novembro de 2016 e setembro de 2017, encontradas abaixo de uma caixa de nidificação. A análise das amostras permitiu encontrar o total de 596 indivíduos de quatro espécies pequenas de mamíferos. O roedor exótico Mus musculus foi predominante entre os itens alimentares (98,3%), enquanto os roedores nativos Necromys lasiurus (1,3%) e Holochilus brasiliensis (0,17%) foram bem mais raros. Um único espécime de Cryptonanus sp. foi identificado entre os itens com base em caracteres dentários. A identificação desse gênero no presente estudo representa o segundo registro no estado do Rio de Janeiro e o sexto no bioma Mata Atlântica, sugerindo que este marsupial ocupa uma ampla faixa ecológica e biogeográfica. O presente estudo destaca a relevância dos pellets de coruja para pesquisas com pequenos mamíferos, mesmo em áreas urbanas e altamente perturbadas.


Subject(s)
Animals , Urban Area , Strigiformes , Diet , Marsupialia , Brazil
4.
Rev. bras. parasitol. vet ; 30(1): e016720, 2021. tab, graf
Article in English | LILACS | ID: biblio-1156215

ABSTRACT

Abstract Hippoboscid flies are potential ectoparasites of several avian orders, including birds of prey, a group formed by the orders Falconiformes, Strigiformes, Cathartiformes and Accipitriformes. In this study, we evaluated 155 birds of prey that were brought to the Wildlife Rehabilitation Center of Juiz de Fora, Minas Gerais, Brazil, between the years 2016 and 2019. Two species of hippoboscid flies (Ornithoctona erythrocephala and Icosta americana) were found in five species of birds of prey (Megascops choliba, Asio stygius, Athene cunicularia, Asio clamator and Caracara plancus). The average intensity found was 1.4 hippoboscids/bird and Megascops choliba (tropical screech-owl) was the most parasitized bird. This is the first record of parasitism of Asio stygius (stygian owl) by Ornithoctona erythrocephala in Brazil and of Athene cunicularia (burrowing owl) and Asio clamator (striped owl) by Icosta americana. Ornithoctona erythrocephala is recorded here for the first time infesting birds of prey in the state of Minas Gerais, Brazil.


Resumo Moscas hipoboscídeas são ectoparasitos potenciais de diversas ordens aviárias, incluindo as aves de rapina, grupo formado pelas ordens Falconiformes, Strigiformes, Cathartiformes e Accipitriformes. Neste estudo foram avaliadas 155 aves de rapina que chegaram ao Centro de Triagem de Animais Silvestres de Juiz de Fora, Minas Gerais, Brasil, entre os anos 2016 e 2019. Foram encontradas duas espécies de hipoboscídeos (Ornithoctona erythrocephala e Icosta americana) em cinco espécies de aves de rapina (Megascops choliba, Asio stygius, Athene cunicularia, Asio clamator e Caracara plancus). A intensidade média encontrada foi de 1,4 hipoboscídeo/ave e a espécie de coruja Megascops choliba (corujinha-do-mato) foi a mais parasitada. Este é o primeiro registro do parasitismo da coruja Asio stygius (mocho-diabo) por Ornithoctona erythrocephala, em território brasileiro, e das corujas Athene cunicularia (coruja-buraqueira) e Asio clamator (coruja-orelhuda), sendo parasitadas por Icosta americana. Ornithoctona erythrocephala é aqui registrada pela primeira vez infestando aves de rapina no estado de Minas Gerais, Brasil.


Subject(s)
Animals , Bird Diseases , Strigiformes , Diptera , Brazil , Forests
5.
Rev. bras. parasitol. vet ; 30(3): e003121, 2021. graf
Article in English | LILACS | ID: biblio-1251393

ABSTRACT

Abstract The chigger species Blankaartia sinnamaryi (Floch & Fauran) has been collected mainly from birds with a few records from reptiles and mammals. In Brazil, this species has been found on birds in the Minas Gerais and Rio de Janeiro states. Here, we report the first record of B. sinnamaryi parasitizing the striped owl, Pseudoscops clamator (Vieillot), in the Paraíba state, Brazil (northeastern region).


Resumo A espécie de trombiculídeo, Blankaartia sinnamaryi (Floch & Fauran) tem sido coletada principalmente parasitando aves, com alguns registros em répteis e mamíferos. No Brasil, essa espécie foi encontrada em aves nos estados de Minas Gerais e Rio de Janeiro. No presente estudo, relatamos o primeiro registro de B. sinnamaryi parasitando a coruja-listrada, Pseudoscops clamator (Vieillot), no estado da Paraíba, Brasil (região Nordeste).


Subject(s)
Animals , Trombiculidae , Strigiformes , Brazil
6.
Arq. bras. med. vet. zootec. (Online) ; 72(2): 493-498, Mar./Apr. 2020. ilus
Article in Portuguese | LILACS, VETINDEX | ID: biblio-1128385

ABSTRACT

Foi atendida, no Hospital Veterinário da Universidade de Cuiabá, uma coruja suindara (Tyto furcata), resgatada pela Polícia Militar Ambiental, sem histórico, adulta e 400 gramas de peso corporal. A ave apresentava impotência funcional do membro pélvico direito, além de desvio, crepitação e dor na região proximal tibiotársica direita, sem lesão cutânea. Estudo radiográfico revelou fratura diafisária oblíqua curta em tibiotarso direito. A estabilização da fratura foi realizada com placa bloqueada do sistema de 1,5mm, na função de apoio, seis orifícios, com três parafusos monocorticais distais, dois parafusos monocorticais proximais e um parafuso bicortical proximal. Ao 30º dia do pós-operatório, os achados radiográficos de consolidação óssea e o retorno da função do membro permitiram a alta médica. Concluiu-se que o uso de placa bloqueada em função apoio para estabilização de fraturas tibiotársicas simples de coruja suindara oferece resultados satisfatórios.(AU)


An adult suindara owl (Tyto furcata), with no specific history and 400 grams of body weight was treated at the Veterinary Hospital of the University of Cuiabá. The patient presented functional impotence in the right pelvic limb, deviation, crepitation and pain in the proximal region in right tibiotarsal, without cutaneous lesions. Radiographs revealed a short oblique diaphyseal fracture at the right tibiotarsus. Fracture stabilization was performed with a 1.5mm locking plate, buttress, six holes; three distal monocortical screws, two proximal monocortical screws and a proximal bicortical screw. On the 30th postoperative day, radiographic revealed bone healing, and the return of limb function allowed medical discharge. It was concluded that the use of locking plates in buttress function to stabilize simple tibiotarsus fractures in suindara owl offers satisfactory results.(AU)


Subject(s)
Animals , Tibial Fractures/surgery , Bone Plates/veterinary , Strigiformes/surgery , Fractures, Bone/veterinary , Fracture Fixation, Internal/veterinary
8.
Pesqui. vet. bras ; 39(3): 209-213, Mar. 2019. tab, ilus
Article in English | LILACS, VETINDEX | ID: biblio-1002804

ABSTRACT

The present study investigated the circulation of avian metapneumovirus (aMPV) in wild birds in Brazil. To do so, 131 samples from 366 oropharyngeal or cloacal swabs collected from 18 species of birds were tested individually or in pools by RT-PCR. Samples detected by RT-PCR were selected for DNA sequencing. Thirteen (9.9%) samples were detected by the RT-PCR targeting the N gene and four out of 13 samples were sequenced. Sequencing results showed a high identity with the aMPV subtype A. Our results confirm the circulation of the aMPV subtype A in wild birds in Brazil even five years after its last detection.(AU)


O presente estudo investigou a circulação de metapneumovírus aviário em aves silvestres no Brasil. Para tanto, 131 amostras de 366 suabes orofaringeanos ou cloacais coletados de 18 espécies de aves foram testadas individualmente ou na forma de pools por RT-PCR. As amostras detectadas por RT-PCR foram selecionadas para sequenciamento. Treze (9,9%) das amostras foram detectadas por RT-PCR tendo o gene N como alvo; destas, quatro foram sequenciadas com sucesso. Resultados do sequenciamento mostraram alta identidade com o aMPV de subtipo A. Nossos resultados confirmam a circulação de aMPV subtipo A em aves silvestres no Brasil mesmo cinco anos após sua última detecção.(AU)


Subject(s)
Animals , Psittaciformes/virology , Paramyxoviridae Infections/veterinary , Paramyxoviridae Infections/epidemiology , Strigiformes/virology , Metapneumovirus/isolation & purification , Anseriformes/virology , Columbiformes/virology , Falconiformes/virology , Birds/virology
9.
Int. j. morphol ; 36(4): 1175-1179, Dec. 2018. tab, graf
Article in English | LILACS | ID: biblio-975677

ABSTRACT

The authors studied the morphometry and the topographical distribution of Retinal Ganglion Cells (RGCs) in four nocturnal raptors of the order of Strigiformes, family of Strigidae: little owl, tawny owl, scops owl, eared owl. In order to recognize specialized retinal vision areas (fovea and visual streak), the number of RGCs/mm2 and the soma size in the four retinal fields (dorsal, ventral, temporal and nasal) by the histological analysis of retinal radial sections were recorded. A temporal fovea was identified in little owl, tawny owl and eared owl while in scops owl this visual area was localized near the fundus oculi. A radial visual streak ventrally directed was pointed out in the retinas of the four raptors with different shape according to its width. The Authors linked the obtained data with the predatory behavior of nocturnal raptors in their habitat.


Se estudió la morfometría y la distribución topográfica de las células ganglionares de la retina (CGR) en cuatro aves rapaces nocturnas del orden de los Strigiformes, familia Strigidae: búho pequeño, mochuelo, autillo, y cárabo. Con el objetivo de definir las áreas de visión retiniana especializadas (fóvea y campo visual), se registró el número de CGRs/mm2 y el tamaño del soma en los cuatro campos retinianos (dorsal, ventral, temporal y nasal), mediante análisis histológico de las secciones radiales de la retina. Se identificó una fóvea temporal en mochuelo, búho leonado y búho pequeño, mientras que en el búho real, esta área visual se localizó cerca del fondo de ojo. Se observó un campo radial visual dirigido ventralmente en las retinas de las cuatro aves rapaces, con diferentes formas según su extensión. Se relacionaron los datos obtenidos con el comportamiento predatorio de aves rapaces nocturnas en su hábitat.


Subject(s)
Animals , Retina/cytology , Retinal Ganglion Cells/cytology , Strigiformes/anatomy & histology
10.
Rev. bras. parasitol. vet ; 27(2): 161-168, Apr.-June 2018. tab, graf
Article in English | LILACS | ID: biblio-959180

ABSTRACT

Abstract To describe the parasitic community of the Magellanic Horned Owl, Bubo magellanicus (Aves, Strigiformes), 19 carcasses from central Chile were analyzed. Ectoparasites were collected through plumage inspection, while endoparasites were collected through traditional techniques of parasitological necropsy. Sixteen owls were infected with at least one species of ectoparasite (84.21%) or endoparasite (31.58%). Eleven of 19 birds (57.89%) harbored feather mites of the three species Pandalura cirrata (42.11%), Glaucalges attenuatus (47.37%), and Kramerella sp. (10.53%), whereas 16 individuals (84.21%) harbored the chewing louse Strigiphilus chilensis. Only six birds (31.58%) were infected with helminths; the nematodes Capillaria tenuissima (26.32%) and Dispharynx nasuta (5.26%); the acanthocephalan Centrorhynchus spinosus (5.26%); and the trematode Neodiplostomum sp. (5.26%). Apart from S . chilensis, all parasites comprised new records for B . magellanicus.


Resumo Para descrever a comunidade parasitária de coruja-orelhuda Bubo magellanicus (Aves, Strigiformes), foram analisados 19 carcaças das aves do centro do Chile. Os ectoparasitos foram coletados inspecionando-se a plumagem e os endoparasitas extraídos por meio de técnicas tradicionais de necropsia parasitaria. Dezesseis corujas estavam infectadas com pelo menos uma espécie de ectoparasito (84,21%) ou endoparasito (31,58%). Onze de 19 aves (57,89%) abrigavam nas penas ácaros de três espécies: Pandalura cirrata (42,11%), Glaucalges attenuatus (47,37%) e Kramerella sp. (10,53%), enquanto que 16 indivíduos (84,21%) estavam parasitados pelo piolho Strigiphilus chilensis . Apenas seis aves (31,58%) estavam infectadas com helmintos; os nematoides Capillaria tenuissima (26,32%) e Dispharynx nasuta (5,26%); o acantocéfalo Centrorhynchus spinosus (5,26%); e o trematódeo Neodiplostomum sp. (5,26%). Excetuando-se S. chilensis , todos os parasitos incluíam novos registros para B. magellanicus .


Subject(s)
Animals , Male , Female , Bird Diseases/parasitology , Strigiformes/parasitology , Gastrointestinal Tract/parasitology , Ectoparasitic Infestations/veterinary , Gastrointestinal Diseases/veterinary , Bird Diseases/epidemiology , Chile/epidemiology , Ectoparasitic Infestations/epidemiology , Gastrointestinal Diseases/parasitology , Gastrointestinal Diseases/epidemiology
11.
Article in English | WPRIM | ID: wpr-758792

ABSTRACT

The barn owl (BO) and the collared scops owl (CSO) are common nocturnal raptors throughout Thailand. Blood samples from 23 adult BOs and 14 CSOs were collected and processed for complete blood cell counts and parasite morphological examinations. Two Haemoproteus-positive samples were processed for ultrastructural observation. Polymerase chain reaction (PCR) analysis for a partial cytochrome b gene (cytb) from Haemoproteus was performed in all samples. Haemoproteus presence detected by light microscopy was lower than that detected by PCR (30.4% and 34.8%, respectively, in BO; and 50.0% and 78.6%, respectively, in CSO). Comparative hematology revealed that Haemoproteus-positive BOs had higher mean cell hemoglobin concentration, total leukocyte, absolute heterophil, basophil, and monocyte counts than Haemoproteus-negative BOs, but no significant differences between Haemoproteus-negative and


Subject(s)
Adult , Animals , Basophils , Blood Cell Count , Cytochromes b , Erythrocyte Indices , Hematology , Humans , Leukocytes , Malaria, Avian , Microscopy , Monocytes , Parasites , Polymerase Chain Reaction , Raptors , Strigiformes , Thailand
12.
Rev. bras. parasitol. vet ; 26(3): 348-351, July-Sept. 2017. tab, graf
Article in English | LILACS | ID: biblio-899293

ABSTRACT

Abstract The little owl Athene noctua (Scopoli, 1769) is a small raptor that is widely distributed from northern to southern Portugal and several other countries in Europe, Asia and North Africa, and which has been introduced into New Zealand. In the current study, 18 fecal samples were collected from little owls kept at the Lisbon Center for Wild Animal Recovery, which is located in Monsanto Forest Park, Lisbon, Portugal. Twelve (67%) of them were found to be passing an undescribed species of Avispora in their feces. The oocysts of Avispora mochogalegoi n. sp. were ellipsoidal with a bilayered wall and measured 38.9 × 32.9 µm, with a shape index of 1.18. No micropyle, oocyst residuum or polar granule was present. The sporocysts were subspherical, measuring 21.1 × 20.1 µm. Stieda, sub-Stieda and para-Stieda bodies were absent. The sporocyst residuum was composed of a compact subspherical mass of granules. This is the fourth species of Avispora reported in Strigiformes.


Resumo O mocho-galego Athene noctua (Scopoli, 1769) é uma pequena ave de rapina amplamente distribuída de norte a sul de Portugal, em vários países da Europa, Ásia e norte da África, e foi introduzida na Nova Zelândia. No presente trabalho, 18 amostras de fezes foram coletadas de mochos-galegos mantidos no Centro de Recuperação de Animais Silvestres de Lisboa, localizado no Parque Florestal de Monsanto, Lisboa, Portugal. Doze (67%) deles eliminaram uma espécie não descrita de Avispora em suas fezes. Os oocistos de Avispora mochogalegoi n. sp. foram elipsóides, com parede de dupla camada, medindo 38,9 × 32,9 µm, e índice morfométrico de 1,18. A micrópila, resíduo do oocisto e grânulo polar foram ausentes. Os esporocistos foram subesféricos, medindo 21,1 × 20,1 µm. Corpos de Stieda, substieda e parastieda foram ausentes. O resíduo do esporocisto foi composto de uma massa subesférica compacta de grânulos. Esta é a quarta espécie Avispora relatada em Strigiformes.


Subject(s)
Animals , Bird Diseases/parasitology , Coccidiosis/veterinary , Strigiformes , Sarcocystidae/classification , Portugal , Feces/parasitology
13.
Rev. bras. parasitol. vet ; 25(4): 501-503, Sept.-Dec. 2016. tab
Article in English | LILACS | ID: biblio-830048

ABSTRACT

Abstract The aims of this study was to provide new records of hippoboscid flies collected over an one-year period on newly captured birds from nature in the state of Paraná, Brazil. The birds were received by a wildlife center in Tijucas do Sul and the hippoboscid flies were collect by hand or by tweezers, generating a prevalence of 0.7% (16/2232) of parasitized birds. New information about distribution of hippoboscid flies on Asio clamator, Rupornis magnirostris and Athene cunicularia was reported in the state of Paraná. The Caracara plancus, Falco peregrinus and Penelope obscura are new host species for Ornithoctona erythrocephala in the state of Paraná, and the Asio stygius for Icosta rufiventris and Ornithoica vicina in Brazil. This study provided new information about hosts and distribution of hippoboscid flies in Brazilian birds.


Resumo O objetivo deste estudo foi fornecer novos registros de hipoboscídeos coletados durante o período de um ano em aves recém-capturadas da natureza no estado do Paraná, Brasil. As aves foram recebidas pelo Centro de Triagem de Animais Silvestres localizado em Tijucas do Sul, e os hipoboscídeos foram coletados manualmente ou utilizando pinças, gerando uma prevalência de 0,7% (16/2232) de aves parasitadas. Novas informações sobre a distribuição de hipoboscídeos em Asio clamator, Rupornis magnirostris e Athene cunicularia foram observados no estado do Paraná. Caracara plancus, Falco peregrinus e Penelope obscura são novas espécies de hospedeiros para Ornithoctona erythrocephala no Paraná, e Asio stygius para Icosta rufiventris e Ornithoica vicina no Brasil. O presente estudo forneceu novas informações sobre hospedeiros e distribuição de hipoboscídeos em aves brasileiras.


Subject(s)
Animals , Birds/parasitology , Diptera , Bird Diseases , Brazil , Strigiformes/parasitology , Animals, Wild/parasitology
14.
Pesqui. vet. bras ; 36(7): 630-633, jul. 2016. ilus
Article in Portuguese | LILACS, VETINDEX | ID: lil-794772

ABSTRACT

Este trabalho descreve um caso de infecção mista por pox vírus e Aspergillus fumigatus em Bubo virginianus (coruja jacurutu). A ave, um macho adulto, foi encaminhada ao Núcleo de Reabilitação da Fauna Silvestre do Instituto de Biologia da Universidade Federal de Pelotas (NURFS/CETAS/UFPEL). Apresentava bom estado corporal, estava ativa, porém com incapacidade de voo. Após três dias apresentou lesões crostosas e de aspecto verrucoso na superfície dorsal das patas. Havia, também, nódulos de mesmo aspecto na pálpebra esquerda e na cera. A ave morreu após 15 dias de sua chegada ao NURFS e foi necropsiada no Laboratório Regional de Diagnóstico da Faculdade de Veterinária da Universidade Federal de Pelotas (LRD/UFPel). Histologicamente, as lesões verrucosas caracterizavam-se por hiperplasia do epitélio e nas células das camadas basal, espinhosa, granular e córnea havia corpúsculos de inclusão intracitoplasmáticos do tipo Bollinger. Na microscopia eletrônica foram visualizadas partículas virais características de pox vírus, incluindo Bubo virginianus como um hospedeiro do vírus. Havia, ainda, infiltrado inflamatório de células mononucleares e focos de colônias bacterianas na derme. Nos pulmões havia congestão e presença de granulomas com hifas fúngicas, que pela técnica de Grocott, apresentaram ramificação dicotômica compatível com Aspergillus spp., identificado na cultura como A. fumigatus. O diagnóstico de infecção por avipoxvirus pode contribuir para estudos relacionados com a ocorrência desta doença nas populações de vida livre e como informação auxiliar para o manejo e conservação desta espécie. Sugere-se, ainda, a inclusão do uso de raios-X nos protocolos de centros de reabilitação como o diagnostico de aspergilose em aves rapinantes com bom estado corporal, porém incapazes de voar.(AU)


This paper describes a case of mixed infection by pox virus and Aspergillus fumigatus in Bubo virginianus (Owl Jacurutu). An adult male Bubo virginianus was referred to the Núcleo de Reabilitação da Fauna Silvestre, Instituto de Biologia, Universidade Federal de Pelotas (NURFS/CETAS/UFPEL). The owl was active and had a good body condition but with flight disability. After three days of their admission at NURFS the owl developed crusty and verrucous lesions at the dorsal surface of their feet. Also it had nodes on the left eyelid and cera with the same aspect. The owl died 15 days after its arrival. Necropsy and histopatological examination were carried out. The warty lesions had hyperplasia of the epithelium and intracytoplasmic Bollinger-like inclusion bodies in the basal, spinal, granulosa layer and cornea. Viral particles characteristic of pox viruses were shown by electron microscopy. This case includes Bubo virginianus as a host of the avipoxvirus. There were also a mononuclear inflammatory cell infiltrate and bacterial colonies in the dermis. In the lugs, there was congestion and presence of granulomas with intralesional fungal hyphae. With the Grocott stain those structures showed dichotomous branching which was later identified in mycological culture as characteristic for A. fumigates. The diagnosis of avipoxvirus infection can contribute to studies related to the occurrence of this disease in free-living populations and as auxiliary information for the management and conservation of this raptor species. It is also suggested to include the use of X-rays in rehabilitation center protocols as screening test to diagnose aspergillosis in birds of prey with good body condition but inability to fly.(AU)


Subject(s)
Animals , Male , Aspergillus fumigatus/pathogenicity , Poxviridae Infections/physiopathology , Poxviridae Infections/veterinary , Strigiformes/microbiology , Aspergillosis/veterinary , Avipoxvirus , Yaws/veterinary
15.
Article in English | WPRIM | ID: wpr-633130

ABSTRACT

Cytomegalovirus (CMV) rarely manifests as cutaneous lesions in immunocompromised patients. Only 25 cases have been reported since 1991. It causes latent infection among exposed individuals but reactivation may occur in immunocompromised patients causing encephalitis, pneumonitis, colitis, retinitis and congenital fetal infection. Cutaneous manifestations of CMV infection usually present with various skin lesions such as ulcers, erosions, erythematous morbilliform rash, vesicles and bullae. We report a case of cutaneous CMV infection in an HIV-AIDS patient presenting as a persistent ulcerated plaque on the nose. The lesion slowly evolved into a plaque which partially destroyed the right alar rim. Skin punch biopsy showed perivascular giant cells with large eosinophilic inclusions resembling an owl's eye consistent with CMV infection. He was subsequently diagnosed with CMV retinitis because of blurring of vision and findings of retinal necrosis on fundoscopy. Oral valganciclovir 1800mg/day was given for 21 days. Significant thinning and drying of the plaque with no further progression of ulceration of the alar rim were noted.


Subject(s)
Humans , Male , Adult , Acquired Immunodeficiency Syndrome , Blister , Colitis , Cytomegalovirus , Cytomegalovirus Retinitis , Encephalitis , Exanthema , Ganciclovir , Immunocompromised Host , Pneumonia , Strigiformes , Succinates , Ulcer
16.
Rev. Soc. Bras. Med. Trop ; 48(6): 786-788, Nov.-Dec. 2015. graf
Article in English | LILACS | ID: lil-767826

ABSTRACT

Abstract: We herein report human dermatitis caused by the tropical fowl mite Ornithonyssus bursa (Berlese). The cases occurred in an apartment in a residential district of Porto Alegre City, State of Rio Grande do Sul, Brazil, where three members of the same family presented with pruritic lesions on the arms and legs. On inspecting the bathroom, several mites measuring approximately 1.0mm in length were observed coming from a nest of Rufous Hornero, Furnarius rufus (Gmelin). This is the first report of O. bursa in the urban area of Porto Alegre City, from a nest of F. rufus that bites humans.


Subject(s)
Animals , Female , Humans , Male , Dermatitis/parasitology , Mite Infestations , Mites/classification , Strigiformes/parasitology
17.
Braz. j. biol ; 75(4,supl.1): 143-149, Nov. 2015. tab, graf
Article in English | LILACS | ID: lil-768233

ABSTRACT

Abstract This paper tested the hypothesis that the structural components of vegetation have impact over the distribution of owl species in a fragment of a semi-deciduous seasonal forest. This paper also determined which vegetation variables contributed to the spatial distribution of owl species. It was developed in the Perobas Biological Reserve (PBR) between September and December 2011. To conduct the owl census, a playback technique was applied at hearing points distributed to cover different vegetation types in the study area. A total of 56 individual owls of six species were recorded: Tropical Screech-Owl (Megascops choliba), Black-capped Screech-Owl (Megascops atricapilla), Tawny-browed Owl (Pulsatrix koeniswaldiana), Ferruginous Pygmy-Owl (Glaucidium brasilianum), Mottled Owl (Strix virgata) and Stygian Owl (Asio stygius). The results suggest that the variables of vegetation structure have impact on the occurrence of owls. The canopy height, the presence of hollow trees, fallen trees and glades are the most important structural components influencing owl distribution in the sampled area.


Resumo Este estudo testou a hipótese de que os componentes estruturais da vegetação de uma floresta influenciam a distribuição das espécies de corujas de um fragmento de floresta estacional semidecidual. O estudo também determinou quais variáveis da vegetação contribuem na distribuição espacial das espécies. O estudo foi desenvolvido na Reserva Biológica das Perobas, entre os meses de setembro e dezembro de 2011. Para realizar o censo das corujas foi utilizada a técnica de playback em pontos de escuta dispostos de modo a abranger os diferentes tipos de vegetação na área de estudo. Foi encontrado um total de 56 indivíduos de seis espécies de corujas: corujinha-do-mato (Megascops choliba), corujinha-sapo (Megascops atricapilla), murucututu-de-barriga-marela (Pulsatrix koeniswaldiana), caburé (Glaucidium brasilianum), coruja-do-mato (Strix virgata) e mocho-diabo (Asio stygius). Os resultados sugerem que as variáveis ​​da estrutura da vegetação e composição influenciam na ocorrência de corujas. A altura do dossel, a presença de árvores ocas, árvores caídas e clareiras, demonstram que são os componentes estruturais mais influentes na distribuição de corujas na área amostrada.


Subject(s)
Animals , Animal Distribution , Forests , Strigiformes/physiology , Brazil , Seasons , Species Specificity
18.
Pesqui. vet. bras ; 35(2): 169-172, 02/2015. graf
Article in Portuguese | LILACS | ID: lil-748888

ABSTRACT

A gota úrica é uma doença metabólica caracterizada pela deposição de cristais de urato e ácido úrico em tecidos do corpo, que pode acometer répteis, mamíferos e aves. Neste trabalho, relata-se um caso de achados post mortem compatíveis com gota úrica visceral em um exemplar de coruja suindara (Tyto alba) de vida livre. Macroscopicamente, o pericárdio apresentava-se completamente esbranquiçado, espesso e aderido ao miocárdio e o fígado e ambos os rins apresentavam áreas esbranquiçados sugerindo acúmulo de urato. A microscopia do tecido cardíaco e hepático revelou pericardite fibrinosa e perihepatite necrosante respectivamente. Congestão pulmonar e infiltrado inflamatório heterofílico multifocal no parênquima renal também foram visualizados. As alterações encontradas são compatíveis com as descritas na literatura para gota úrica visceral em aves, podendo até serem consideradas como lesões patognomônicas. Este é o primeiro relato de gota úrica visceral em um rapinante de vida livre no Brasil.


Gout, a metabolic disease characterized by deposition of uric acid crystals in tissue, can affect reptiles, mammals and birds. We studied a postmortem case of this disease in a free-living owl (Tyto alba). The pericardium was covered a whitish thick layer adhered to the myocardium, and the liver and both kidneys showed whitish areas. The microscopic examination of the heart and hepatic tissue revealed fibrinous pericarditis and necrotizing perihepatitis. Diffuse and multifocal heterophilic inflammatory infiltrate in the renal parenchyma pulmonary congestion were also displayed. The changes found are consistent with those described in the literature for uric visceral gout in birds and may even be considered as pathognomonic lesions. This is the first report of visceral gout uric on a predator-free life in Brazil.


Subject(s)
Animals , Uric Acid/isolation & purification , Strigiformes/metabolism , Gout/veterinary , Autopsy/veterinary , Hyperuricemia/veterinary
19.
Rev. bras. parasitol. vet ; 23(2): 274-275, 06/2014. graf
Article in English | LILACS | ID: lil-714785

ABSTRACT

The aim of this study was to report the burrowing owl Athene cunicularia as a new host for the filarid nematode Pelecitus sp. in southeastern Brazil for the first time, as well as reporting the occurrence of this nematode species in the body cavity, near the cervical air sac and lung region. This study contributes towards knowledge of parasitism in Brazilian wild birds and an anatomical region of the host as an infection site for Pelecitus sp.


O objetivo do estudo foi relatar, pela primeira vez, a coruja buraqueira Athene cunicularia como um novo hospedeiro para o nematóide filarídeo Pelecitus sp. do Sudeste do Brasil, bem como a ocorrência desta espécie de nematóides na cavidade corporal, próximos à região dos sacos aéreos cervicais e pulmões. Este estudo contribui para o conhecimento do parasitismo em aves silvestres brasileiras e uma região anatômica do hospedeiro como sítio de infecção para Pelecitus sp.


Subject(s)
Animals , Female , Onchocerca/physiology , Strigiformes/parasitology , Brazil
20.
Psychiatry Investigation ; : 345-362, 2014.
Article in English | WPRIM | ID: wpr-91125

ABSTRACT

People called night owls habitually have late bedtimes and late times of arising, sometimes suffering a heritable circadian disturbance called delayed sleep phase syndrome (DSPS). Those with DSPS, those with more severe progressively-late non-24-hour sleep-wake cycles, and those with bipolar disorder may share genetic tendencies for slowed or delayed circadian cycles. We searched for polymorphisms associated with DSPS in a case-control study of DSPS research participants and a separate study of Sleep Center patients undergoing polysomnography. In 45 participants, we resequenced portions of 15 circadian genes to identify unknown polymorphisms that might be associated with DSPS, non-24-hour rhythms, or bipolar comorbidities. We then genotyped single nucleotide polymorphisms (SNPs) in both larger samples, using Illumina Golden Gate assays. Associations of SNPs with the DSPS phenotype and with the morningness-eveningness parametric phenotype were computed for both samples, then combined for meta-analyses. Delayed sleep and "eveningness" were inversely associated with loci in circadian genes NFIL3 (rs2482705) and RORC (rs3828057). A group of haplotypes overlapping BHLHE40 was associated with non-24-hour sleep-wake cycles, and less robustly, with delayed sleep and bipolar disorder (e.g., rs34883305, rs34870629, rs74439275, and rs3750275 were associated with n=37, p=4.58E-09, Bonferroni p=2.95E-06). Bright light and melatonin can palliate circadian disorders, and genetics may clarify the underlying circadian photoperiodic mechanisms. After further replication and identification of the causal polymorphisms, these findings may point to future treatments for DSPS, non-24-hour rhythms, and possibly bipolar disorder or depression.


Subject(s)
Bipolar Disorder , Case-Control Studies , Comorbidity , Depression , Genetics , Haplotypes , Humans , Melatonin , Phenotype , Photoperiod , Polymorphism, Single Nucleotide , Polysomnography , Strigiformes
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