title: Occurrence of anti-Neospora caninum and anti-Toxoplasma gondii IgG antibodies in goats and sheep in western Maranhão, Brazil.
abstract: Neosporosis and toxoplasmosis are parasitic diseases which can cause reproductive problems in goats and sheep. The current study aimed to determine the occurrence of anti-Neospora caninum and anti-Toxoplasma gondii IgG antibodies in goats and sheep from the districts of Amarante do Maranhão and Buritirana, Imperatriz microregion, western area of Maranhão State, northeastern Brazil, and to assess factors associated to infection by these etiologic agents. Blood samples from 110 animals (46 goats and 64 sheep) from five herds were collected, and indirect immunofluorescence assay was used for serological testing. Of 46 goat samples, 17.39% (n = 8) showed anti-N. caninum antibodies and 4.35% (n = 2) anti-T. gondii, while of 64 sheep samples 4.69% (n = 3) and 18.75% (n = 12) showed anti-N. caninum and anti-T. gondii antibodies, respectively. No significant difference regarding the presence of domestic cats and/or dogs on the property and veterinary care was seen for both etiologic agents studied. However, food supplementation and animal reproductive failure were significantly (p < 0.05) for N. caninum among sheep and goats, respectively. The current study showed that goats and sheep in western Maranhão are exposed to N. caninum and T. gondii. It is the first evidence of these agents in small ruminants in this region.
authors.affiliation: Departamento de Medicina e Cirurgia Veterinária, Instituto de Veterinária, Universidade Federal Rural do Rio de Janeiro, Seropédica, RJ, Brazil.
authors.forename: Larissa Martins de Brito
authors.initials: LM
authors.lastname: Moraes
authors.forename: Juliana Macedo
authors.initials: JM
authors.lastname: Raimundo
authors.forename: Andresa
authors.initials: A
authors.lastname: Guimarães
authors.forename: Huarrisson Azevedo
authors.initials: HA
authors.lastname: Santos
authors.forename: Gilberto de Lima
authors.initials: Gde L
authors.lastname: Macedo Junior
authors.forename: Carlos Luiz
authors.initials: CL
authors.lastname: Massard
authors.forename: Rosangela Zacarias
authors.initials: RZ
authors.lastname: Machado
authors.forename: Cristiane Divan
authors.initials: CD
authors.lastname: Baldani
mesh_terms: D000818:Animals; D000913:Antibodies, Protozoan / Q000097:blood*; D001938:Brazil; D006041:Goats / Q000097:blood* / Q000276:immunology; D007074:Immunoglobulin G / Q000097:blood*; D018688:Neospora / Q000276:immunology*; D012756:Sheep / Q000097:blood* / Q000276:immunology; D014122:Toxoplasma / Q000276:immunology*
chemical_list: D000913:Antibodies, Protozoan; D007074:Immunoglobulin G