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Monitoring of parasitic cysts in the brains of a flock of sheep in Egypt / Monitoramento de cistos parasitários no cérebro de um rebanho de ovinos no Egito
Anwar, Shehata; Mahdy, Emad; El-Nesr, Khalid Ali; El-Dakhly, Khaled Mohamed; Shalaby, Adel; Tokuma, Yanai.
  • Anwar, Shehata; Beni-Suef University. Faculty of Veterinary Medicine. Department of Pathology. Beni-Suef. EG
  • Mahdy, Emad; Beni-Suef University. Faculty of Veterinary Medicine. Department of Pathology. Beni-Suef. EG
  • El-Nesr, Khalid Ali; Beni-Suef University. Faculty of Veterinary Medicine. Department of Pathology. Beni-Suef. EG
  • El-Dakhly, Khaled Mohamed; Beni-Suef University. Faculty of Veterinary Medicine. Department of Parasitology. Beni-Suef. EG
  • Shalaby, Adel; Beni-Suef University. Faculty of Veterinary Medicine. Department of Pathology. Beni-Suef. EG
  • Tokuma, Yanai; Gifu University. Faculty of Applied Biological Science. Department of Veterinary Pathology. Gifu. JP
Rev. bras. parasitol. vet ; 22(3): 323-330, July-Sept. 2013. tab, ilus
Article in English | LILACS, VETINDEX | ID: lil-688708
ABSTRACT
Cerebral parasitic cysts constitute a major problem for livestock. Among these, coenurosis and toxoplasmosis are predominant. Here, a total number of 60 sheep obtained from a private farm in Suez province, Egypt, were examined postmortem to detect visible parasitic cysts, and microscopically to detect small-sized entities. Necropsy revealed bladder-like cysts measuring 0.5-6.5 cm in diameter that were filled with a translucent fluid containing a large number of protoscolices. Accordingly, the cysts were identified as the metacestode Coenurus cerebralis. Among the sheep examined, 11 animals (7 males and 4 females) (18.3%) were infected. Most of the cysts were located in the cerebral hemispheres, with numbers ranging from one to three per infected animal. The effect of the presence of cysts in the brain tissue was evaluated. Histopathologically, pseudocysts of the apicomplexan Toxoplasma gondii were found in two animals with no detectable inflammatory cell reactions. In conclusion, coenurosis and toxoplasmosis are serious parasitic problems that play a significant role in sheep management in Egypt, as a result of close contact between livestock and dogs and cats, which play a critical role in the life cycle of these parasites.
RESUMO
Cistos cerebrais parasitários constituem um grande problema para o gado. Entre estes, coenurosis e toxoplasmose são predominantes. Aqui, um número total de 60 ovelhas obtidas em uma fazenda particular na província Suez, Egito, foram examinadas post-mortem para a detecção de cistos parasitários visíveis e microscopicamente para detectar cistos de pequenas dimensões. A necropsia revelou cistos medindo entre 0,5-6,5 cm de diâmetro, preenchidos com um fluido transparente, contendo um grande número de protoscolices. Por conseguinte, os cistos foram identificados como o metacestóide Coenurus cerebralis. Entre as ovelhas examinadas, 11 animais (7 machos e 4 fêmeas) (18,3%) estavam infectados. A maior parte dos cistos estavam localizados nos hemisférios cerebrais, com números variando de um a três em ovinos infectados. O efeito da presença de cistos no tecido do cérebro foi avaliado. Histopatologicamente, pseudocistos de Toxoplasma gondii foram encontrados em dois animais sem reações inflamatórias detectáveis. Em conclusão, coenurosis e toxoplasmose são graves problemas parasitários que desempenham um papel significativo no manejo de ovelhas no Egito, como resultado do contacto íntimo dos animais com os cães e gatos, que desempenham um papel crítico no ciclo de vida desses parasitas.
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Full text: Available Index: LILACS (Americas) Main subject: Sheep Diseases / Brain Diseases / Cysticercosis / Cestode Infections / Toxoplasmosis, Animal / Central Nervous System Parasitic Infections Type of study: Diagnostic study / Prognostic study / Screening study Limits: Animals Country/Region as subject: Africa Language: English Journal: Rev. bras. parasitol. vet Year: 2013 Type: Article Institution/Affiliation country: Beni-Suef University/EG / Gifu University/JP

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Full text: Available Index: LILACS (Americas) Main subject: Sheep Diseases / Brain Diseases / Cysticercosis / Cestode Infections / Toxoplasmosis, Animal / Central Nervous System Parasitic Infections Type of study: Diagnostic study / Prognostic study / Screening study Limits: Animals Country/Region as subject: Africa Language: English Journal: Rev. bras. parasitol. vet Year: 2013 Type: Article Institution/Affiliation country: Beni-Suef University/EG / Gifu University/JP