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Teixeira V, Santos F, Aquino M, Tortelly R, Nascimento E, Pereira V. Caracterização macroscópica e microscópica da pododermatite em relação à classificação industrial de pés de frango para consumo humano. ARQ BRAS MED VET ZOO 2019. [DOI: 10.1590/1678-4162-10615] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
RESUMO O presente trabalho teve como objetivo identificar e classificar a pododermatite em frangos de corte, comparando as lesões microscópicas com os aspectos macroscópicos utilizados pela inspeção sanitária. Foi realizada coleta de pés de frangos de corte, em matadouro de aves sob inspeção sanitária, após classificação utilizada nos padrões para exportação. Foram coletados 30 pés tipo A, 30 pés tipo B e 33 pés tipo C, escolhidos aleatoriamente dentro de cada grupo. Para análise histopatológica, foram desenvolvidos escores de acordo com a gravidade das lesões, variando de 0 a 2. Foi observada associação (qui-quadrado, P<0,05) entre a classificação macroscópica (A, B e C) e as alterações histológicas (0, 1 e 2). A classificação A diferiu significativamente (ANOVA, Tukey-Kramer, P<0,05) das classificações B e C quanto aos escores histopatológicos observados. Não houve diferença no comprometimento dos pés pelas lesões que justificassem a separação entre os pés classificados em B e C, uma vez que ambos apresentaram delimitação linear das lesões, sugerindo superficialidade e restrição ao epitélio queratinizado. Portanto, sugere-se o aproveitamento dos pés para consumo humano após remoção mecânica do “calo de pé”, uma vez que este produto não oferece riscos ao consumidor.
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Affiliation(s)
| | - F.F. Santos
- Instituto Federal de Educação, Ciência e Tecnologia do Amazonas, Brazil
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Abreu DLC, Santos FF, José DS, Tortelly R, Nascimento ER, Pereira VLA. Pathological Aspects of a Subclinical Marek's Disease Case in Free-Range Chickens. Rev Bras Cienc Avic 2016. [DOI: 10.1590/18069061-2015-0001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/03/2023]
Affiliation(s)
- DLC Abreu
- Universidade Federal Fluminense, Brazil
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Videira M, Velasco M, Tortelly R, Clemente SCS, Matos P, Sanches O, Matos E. Spontaneous multi-cystic peripheral ameloblastoma in the freshwater angelfish, from the Brazilian state of Pará. ARQ BRAS MED VET ZOO 2015. [DOI: 10.1590/1678-4162-7736] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Affiliation(s)
| | - M. Velasco
- Universidade Federal Rural da Amazônia, Brazil
| | | | | | - P. Matos
- Universidade Federal do Pará, Brazil
| | | | - E. Matos
- Universidade Federal Rural da Amazônia, Brazil
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Videira M, Velasco M, Tortelly R, Menezes R, São Clemente S, Matos E. An anatomopathological study of hepatic coccidiosis (Calyptospora sp.) in the Acará-pixuna, Aequidens plagiozonatus Kullander, 1984 from the Brazilian state of Pará. ARQ BRAS MED VET ZOO 2013. [DOI: 10.1590/s0102-09352013000100014] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
The present study focuses on the anatomopathological alterations provoked by parasitism by Calyptospora sp. in 40 specimens of Aequidens plagiozonatus collected in Pará, Brazil. Examinations of the fresh material by compression of the hepatopancreas and histological sections showed immature forms and oocysts characteristic of the genus Calyptospora, in addition to a large quantity of melanomacrophagic centers spread throughout the organ. No significant inflammation of the hepatic tissue was observed. The melanomacrophagic centers and the compression of the hepatocytes are part of the response of the host to the parasite. This study represents the first record of parasitism by Calyptospora in A. plagiozonatus.
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Affiliation(s)
- M. Videira
- Universidade Federal do Pará; Universidade do Estado do Amapá
| | - M. Velasco
- Universidade Federal do Pará; Universidade Federal Rural da Amazônia
| | | | | | | | - E. Matos
- Universidade Federal Rural da Amazônia
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Almeida DO, Tortelly R, Nascimento ER, Chagas MA, Khan MI, Pereira VLA. Avian infectious bronchitis and deep pectoral myopathy - a case control study. Poult Sci 2013; 91:3052-6. [PMID: 23155012 PMCID: PMC7194598 DOI: 10.3382/ps.2012-02476] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Infectious bronchitis is caused by a coronavirus, infectious bronchitis virus (IBV). Infectious bronchitis is an acute and highly contagious disease of economic importance due to the reduction in weight gain observed with infected broilers and the drop in egg quality and production associated with infected laying hens. The presence of deep pectoral myopathy has been associated with IBV variants. This lesion is detected at slaughterhouses and is characterized by paleness and atrophy of the deep pectoral muscle, including necrosis of the region, leading to condemnations of the breast muscle, a valuable meat cut in the market. This work aimed to study the relationship between deep pectoral myopathy and IBV by describing tracheal and muscle lesions and comparing the frequency of IBV detection via reverse-transcription (RT) PCR in muscle, tracheal, and cecal tonsil samples from broilers with and without myopathy. A case-control study was conducted in 40 broiler flocks vaccinated with the Massachusetts strain. The case group consisted of 23 flocks that presented myopathic lesions under sanitary inspection and a control group of 17 flocks without myopathic lesions. The tracheal, cecal tonsil, and supracoracoid muscle (with and without lesions) samples from the 40 broiler flocks were screened by RT-PCR to detect IBV. Histopathology of muscle and tracheal tissue was carried out. Upon microscopic examination, the muscle samples from the case group presented extensive necrosis, intense mononuclear inflammatory infiltration, muscle fiber fragmentation, and fibrotic tissue, confirming myopathy, whereas muscles from the control group showed no alterations. The tracheal samples presented a large number of infiltrated mononuclear inflammatory cells that in some areas formed submucosal nodules. A total of 25 flocks tested IBV positive by RT-PCR: 14 from the case group and 11 from the control group. The IBV was detected by RT-PCR directly in muscle samples. Despite that, the relationship between deep pectoral myopathy and IBV was not established. The higher positive IBV RT-PCR percentage noted in the cecal tonsil samples demonstrates how important the choice of organs is for diagnostic purposes.
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Affiliation(s)
- D O Almeida
- Department of Public Health and Veterinary Collective Health, Fluminenese Federal University, Niterói, 24220331, Brazil.
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Cardoso AMC, de Souza AJS, Menezes RC, Pereira WLA, Tortelly R. Gastric lesions in free-ranging black caimans (Melanosuchus niger) associated with Brevimulticaecum species. Vet Pathol 2012; 50:582-4. [PMID: 22961885 DOI: 10.1177/0300985812459337] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The stomachs of 100 free-ranging black caimans (Melanosuchus niger Spix, 1825) from the Mamirauá Sustainable Development Reserve, Amazonas state, Brazil, were examined for parasitism and pathologic lesions. All animals were harvested for human consumption. Ascaridoid nematodes were found in 67 caimans and were identified as Brevimulticaecum sp. These parasites were associated with focally extensive, chronic gastric ulcers and formation of localized intramural granulomas containing nematodes. All caiman were in good nutritional condition, which suggests that effects of gastric nematodiasis on the crocodilian hosts were minimal at the time of slaughter.
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Affiliation(s)
- A M C Cardoso
- Instituto da Saúde e Produção Animal, Universidade Federal Rural da Amazônia, Av. Presidente Tancredo Neves, n° 2501, 66.077-901, Belém, PA, Brazil.
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Trotte M, Santos B, Menezes R, Tortelly R. Neoplasias espontâneas em camundongos de um centro de criação de animais de laboratório. ARQ BRAS MED VET ZOO 2010. [DOI: 10.1590/s0102-09352010000400011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Verificaram-se a prevalência e as características anatomopatológicas de neoplasias espontâneas encontradas em camundongos, provenientes de biotério. Foram necropsiados 9.219 camundongos pertencentes a 13 linhagens, entre agosto de 2002 e janeiro de 2007, para monitoramento sanitário. Amostras de tecidos foram colhidas, fixadas em formol tamponado a 10% e processadas pelas técnicas habituais para inclusão em parafina. Foram realizados 84 diagnósticos de neoplasmas, sendo acometidos 82 camundongos (0,9%). As principais neoplasias diagnosticadas com as respectivas ocorrências foram: carcinoma mamário, 27,4%; linfoma, 19,0%; adenocarcinoma papilífero pulmonar primário, 17,9%; carcinoma epidermoide, 8,3%; osteossarcoma osteoblástico, 4,8%; e outros com menor porcentagem de ocorrência. Houve predomínio de tumores malignos, sendo mais frequentes os carcinomas mamários. A linhagem BALB/c An foi a que apresentou a maior variedade de tipos de neoplasias, seguida das linhagens outbred Swiss Webster e NIH. Fibrossarcoma em camundongos C57BL/10 ScSn-Dmd mdx/J e carcinoma mamário na linhagem NOD foram relatados pela primeira vez.
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Felizardo N, Menezes R, Tortelly R, Knoff M, Pinto R, Gomes D. Larvae of Hysterothylacium sp. (Nematoda: Anisakidae) in the sole fish Paralichthys isosceles Jordan, 1890 (Pisces: Teleostei) from the littoral of the state of Rio de Janeiro, Brazil. Vet Parasitol 2009; 166:175-7. [DOI: 10.1016/j.vetpar.2009.08.004] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2009] [Revised: 08/03/2009] [Accepted: 08/04/2009] [Indexed: 11/28/2022]
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de Miranda LHM, Quintella LP, dos Santos IB, Menezes RC, Figueiredo FB, Gremião IDF, Okamoto T, de Oliveira RVC, Pereira SA, Tortelly R, Schubach TMP. Histopathology of Canine Sporotrichosis: A Morphological Study of 86 Cases from Rio de Janeiro (2001–2007). Mycopathologia 2009; 168:79-87. [DOI: 10.1007/s11046-009-9198-4] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2008] [Accepted: 03/18/2009] [Indexed: 11/30/2022]
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Pissinatti L, Tortelly R, Porto M, Burity C, Pissinatti A. Morfologia macroscópica do aparelho reprodutor feminino de Leontopithecus cativos (Lesson, 1840) Primates-Callitrichidae. ARQ BRAS MED VET ZOO 2008. [DOI: 10.1590/s0102-09352008000600025] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Descreveu-se o sistema reprodutor feminino em três espécies de mico-leão Leontopithecus (Lesson 1840), cativos: L. rosalia, L. chrysopygus e L. chrysomelas. A vulva está delimitada pelos lábios vulvares menores e com clitóris conspícuo. A superfície do períneo urogenital apresenta elevações papilares mais concentradas nos lábios vulvares, conferindo-lhe aspecto rugoso. O vestíbulo vaginal constitui um tubo muscular de parede espessa que se estende da rima da vulva até o óstio da vagina. A vagina é um tubo muscular alongado e achatado dorsoventralmente, que comunica o vestíbulo vaginal ao colo uterino. O útero piriforme está localizado na porção caudal da cavidade abdominal. Craniolateralmente abrem-se tubas uterinas convolutas e ovários grosseiramente fusiformes de superfície lisa.
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Affiliation(s)
| | | | - M. Porto
- Centro Universitário Serra dos Órgãos
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Pissinatti L, Pissinatti A, Burity C, Mattos Jr. D, Tortelly R. Ocorrência de Acanthocephala em Leontopithecus (Lesson, 1840), cativos: aspectos clínico-patológicos. Callitrichidae-Primates. ARQ BRAS MED VET ZOO 2007. [DOI: 10.1590/s0102-09352007000600019] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Estudaram-se achados de necropsia de 454 espécimens de Leontopithecus. Quatorze (3,1%) apresentaram-se infectados por acantocéfalos intestinais identificados como Prosthenorchis elegans (Diesing, 1861). Não foram observadas diferenças na ocorrência do parasito quanto à espécie, origem - cativos ou selvagens - e sexo. Clinicamente os animais apresentaram-se com o pelame eriçado, apatia, inapetência, dores abdominais e diarréia. Em dois animais parasitados (14,2%), observou-se perfuração da parede intestinal. As lesões encontradas caracterizaram-se por uma grave enterite ulcerativa. A ocorrência desses parasitos reforça a necessidade do estabelecimento de protocolos sanitários rígidos no manejo das espécies de primatas do neotrópico.
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Affiliation(s)
| | - A. Pissinatti
- FEEMA; Fundação Educacional Serra dos Órgãos; Universidade do Rio de Janeiro
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Brener B, Tortelly R, Muniz-Pereira L, Pinto R. Cheilospirura hamulosa (Diesing, 1851) (Nematoda, Acuarioidea) in turkeys in Brazil: occurrence and pathology. ARQ BRAS MED VET ZOO 2006. [DOI: 10.1590/s0102-09352006000200021] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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Pinto R, Menezes R, Tortelly R. Systematic and pathologic study of Paratanaisia bragai (Santos, 1934) Freitas, 1959 (Digenea, Eucotylidae) infestation in ruddy ground dove Columbina talpacoti (Temminck, 1811). ARQ BRAS MED VET ZOO 2004. [DOI: 10.1590/s0102-09352004000400008] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
This is the first report of the digenetic trematode Paratanaisia bragai infestation in a ruddy ground dove Columbina talpacoti, captured in a suburban area of Rio de Janeiro, Brazil. Although with a low prevalence (10%), the intensity of infection was high, considering that 116 worms were recovered from one of the kidneys. Gross lesions were not observed and histopathological analysis showed very dilated renal collecting ducts with destruction and flattening of the lining epithelial cells, without inflammatory reaction. The pathological findings were compared to those previously reported for P. bragai in other hosts, since the proposal of the species in 1934.
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Barros L, Tortelly R, Pinto R, Gomes D. Effects of experimental infections with larvae of Eustrongylides ignotus Jäegerskiold, 1909 and Contracaecum multipapillatum (Drasche, 1882) Baylis, 1920 in rabbits. ARQ BRAS MED VET ZOO 2004. [DOI: 10.1590/s0102-09352004000300007] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Rabbits were infected per os with 10 Eustrongylides ignotus L4 and with 50 Contracaecum multipapillatum L3 per rabbit, recovered from naturally infected freshwater fishes (Hoplias malabaricus) in order to evaluate the patogenicity of these two nematode species in mammalian host. Two rabbits (20%) infected with E. ignotus died before the fourth day post-inoculation (one after 51 and the other after 78 hours). Six rabbits (60%) were inappetent until the fifth day following experimental inoculation. No clinical signs in rabbits inoculated with C. multipapillatum were observed; nevertheless, eight (80%) animals were positive for this nematode species. Rabbits inoculated with E. ignotus, had gastric congestion with hematoma of the gastric wall in 60% of the cases. Peritoneum was congested in 20% of the animals with the presence of peritoneal abscess in 10% of the cases. All inoculated animals showed hyperemia of the gastric mucosa with hemorrhagic gastritis due to infections with E. ignotus. In C. multipapillatum inoculated animals, the hyperemia was followed by disruption of the epithelial mucosa in the sites of parasite attachment. In the gastric mucosa, miscellaneous leukocitary infiltrates, with multifocal necrosis reaching the submucosa in the infections with C. multipapillatum were observed under bright field microscopy. Perforating lesions in several organs, mainly in the gastric wall, pancreas and liver, always in the presence of a mixed inflammatory process, intensely fibrous, with hemorrhage and necrosis were observed in animals infected with E. ignotus.
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