Detection of anti-Neospora caninum antibodies in slaughtered sheep
DOI:
https://doi.org/10.26605/medvet-v14n4-2371Palabras clave:
neosporosis, small ruminant, Brazil.Resumen
Neospora caninum is a protozoan that causes reproductive disorders in herbivores. Domestic and wild dogs have been considered its definitive hosts, and when these animals are affected, they may suffer from a neuromuscular disease. Recently, this infection has also gained significance in small ruminants. Although neosporosis is already a proven cause of mortality in lambs and congenital infection can occur, this parasite has only recently been considered a cause of abortion in these animals. The aim of this study was to detect anti-N. caninum antibodies in slaughtered sheep. Serum samples (n = 100) collected in a slaughterhouse located in the municipality of Palmeira dos Índios (09°24’26” S and 36°37’39” W), state of Alagoas, northeastern Brazil, were used in this study. Anti-N. caninum antibodies were detected by means of the Immunofluorescence Antibody Test (IFAT). The cut-off point was set at 50 and samples were titrated up to 800. Anti-N. caninum antibodies were detected in 13% (13/100) of the tested samples, 7.69% of which came from male sheep (1/13) and 92.31% (12/13) from females. Titers ranged from 50 to 800, with the majority of animals (46.15%; 6/13) presenting the maximum one (i.e., 800). Data herein reported demonstrated the circulation of N. caninum parasites among sheep in the study area. These findings are pivotal to improve the knowledge about the dynamics of this pathogen in an ovine population. Therefore, it is crucial to adopt sanitary measures to prevent infection by this parasite and thus reduce its economic impact on ovine production.Descargas
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Acosta, I.D.; Centoducatte, L.D.; Soares, H.A.; Marcili, A.; Gondim, M.F.; Rossi, J.L.; Gennari, S.M. Occurrence of Neospora caninum and Toxoplasma gondii antibodies in dogs from rural properties surrounding a biological reserve, Espírito Santo, Brazil. Brazilian Journal of Veterinary Parasitology, 25(4): 536-539, 2016.
Arranz-Solís, D.; Benavides, J.; Regidor-Cerrillo, J.; Fuertes, M.; Ferre, I.; Ferreras, M.C.; Collantes-Fernández, E.; Hemphill, A.; Pérez, V.; Ortega-Mora, L.M. Influence of the gestational stage on the clinical course, lesional development and parasite distribution in experimental ovine neosporosis. Veterinary Research, 3(46): 1-13, 2015.
Buxton, D.; Maley, S.W.; Wright, S.; Thomson, K.M.; Rae, A.G.; Innes, E.A. The pathogenesis of experimental neosporosis in pregnant sheep. Journal of Comparative Pathology, 118(4): 267-279, 1998.
Cerqueira-Cézar, C.K.; Calero-Bernal, R.; Dubey, J.P.; Gennari, S.M. All about neosporosis in Brazil. Brazilian Journal of Veterinary Parasitology, 26(3): 253-279, 2017.
Dubey, J.P.; Hartley, W.J.; Lindsay, D.S.; Topper, M.J. Fatal congenital Neospora caninum infection in a lamb. Journal of Parasitology, 76(1): 127-130, 1990.
Dubey, J.P.; Lindsay, D.S. Neospora caninum induced abortion in sheep. Journal of Veterinary Diagnostic Investigation, 2(1): 230-233, 1990.
Dubey, J.P. Recent advances in Neospora and neosporosis. Veterinary Parasitology, 84(3-4): 349-367, 1999.
Dubey, J.P. Review of Neospora caninum and neosporosis in animals. Korean Journal of Parasitology, 41(1): 1-16, 2003.
Dubey, J.P.; Schares, G.; Ortega-Mora, L.M. Epidemiology and control of neosporosis and Neospora caninum. Clinical Microbiology Review, 20(2): 323-367, 2007.
Faria, E.B.; Cavalcanti, E.F.; Medeiros, E.S.; Pinheiro Jr., J.W.; Azevedo, S.S.; Athayde, A.C.; Mota, R.A. Risk factors associated with Neospora caninum seropositivity in sheep from the state of Alagoas, in the Northeast region of Brazil. Journal of Parasitology, 96(1): 197-199, 2010.
Ghalmi, F.; China, B.; Jenkins, M.; Azzag, N.; Losson, B. Comparison of different serological methods to detect antibodies specific to Neospora caninum in bovine and canine sera. Journal of Veterinary Diagnostic Investigation, 26(1): 136-140, 2014.
Hässig, M.; Sager, H.; Reitt, K.; Ziegler, D.; Strabel, D.; Gottstein, B. Neospora caninum in sheep: a herd case report. Veterinary Parasitology, 117(3): 213-220, 2003.
Kobayashi, Y.; Yamada, M.; Omata, Y.; Koyama, T.; Saito, A.; Matsuda, T.; Okuyama, K.; Fujimoto, S.; Furuoka, H.; Matsui, T. Naturally-occurring Neospora caninum infection in an adult sheep and her twin fetuses. Journal of Parasitology, 879(2): 434-436, 2001.
Moreno, B.; Collantes-Fernández, E.; Villa, A.; Navarro, A.; Regidor-Cerrillo, J.; Ortega-Mora, L.M. Occurrence of Neospora caninum and Toxoplasma gondii infections in ovine and caprine abortions. Veterinary Parasitology, 187(1-2): 312-318, 2012.
Paradies, P.; Capelli, G.; Testini, G.; Cantacessi, C.; Trees, A.J.; Otranto, D. Risk factors for canine neosporosis in farm and kennel dogs in Southern Italy. Veterinary Parasitology, 145(3-4): 240-244, 2007.
Paré, J.; Hietala, S.K.; Thurmond, M.C. Interpretation of an indirect fluorescent antibody test for diagnosis of Neospora sp. infection in cattle. Journal of Veterinary Diagnostic Investigation, 7(1): 273-275, 1995.
Souza, I.B.; Fernandes, P.R.; Silva, T.R.M.; Santos, C.V.B.; Silva, N.M.M.D.; Ubirajara-Filho, C.R.C.; Carvalho, G.A.; Alves, L.C.; Mota, R.A.; Ramos, R.A.N. Seroprevalence of Neospora caninum and Toxoplasma gondii in dogs from an urban area of North-eastern Brazil: a spatial approach. Revista da Sociedade Brasileira de Medicina Tropical, 52: e20180440, 2019.
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