title: Serological status of mares in parturition and the levels of antibodies (IgG) against protozoan family Sarcocystidae from their pre colostral foals.
abstract: Protozoa from the family Sarcocystidae are agents of reproductive and neurological disorders in horses. The transmission of these protozoa may occur via horizontal or vertical means, and the frequency and potential of the later is not fully elucidated in horses. Thus, the aim of study was to correlation levels of antibodies in mares with pre colostral foals seropositive and assess the level and distribution of antibodies against Neospora spp., Sarcocystis neurona and Toxoplasma gondii, in mares and pre colostral foals at the parturition. The blood samples were collected from mares immediately after parturition and from newborns before the ingestion of colostrum, and sera were analyzed for the presence of IgG by ELISA. It was found that 21.5%, 33.7% and 27.6% of mares were seropositive for Neospora spp., S. neurona and T. gondii, respectively; foals had antibodies at a rate of 8.3%, 6.6% and 6.6% for Neospora spp., S. neurona and T. gondii, respectively. Additionally, paired samples from mares and pre-colostral foals revealed an overall negative correlation between the serum reactivity against these three parasites and suggested that seronegative mares, or those with low to intermediate antibody levels, have a higher risk of giving birth to seropositive foals.
authors.affiliation: Departamento de Medicina Veterinária Preventiva (DMVP), Centro de Ciências Rurais (CCR), Universidade Federal de Santa Maria (UFSM), 97105-900 Santa Maria, Rio Grande do Sul, Brazil. Electronic address: felipe.pivoto@gmail.com.
authors.forename: Felipe Lamberti
authors.initials: FL
authors.lastname: Pivoto
authors.forename: Arlindo Gomes
authors.initials: AG
authors.lastname: de Macêdo
authors.forename: Murilo Vieira
authors.initials: MV
authors.lastname: da Silva
authors.forename: Flávia Batista
authors.initials: FB
authors.lastname: Ferreira
authors.forename: Deise Aparecida Oliveira
authors.initials: DA
authors.lastname: Silva
authors.forename: Endrigo
authors.initials: E
authors.lastname: Pompermayer
authors.forename: Luis Antônio
authors.initials: LA
authors.lastname: Sangioni
authors.forename: Tiago Wilson Patriarca
authors.initials: TW
authors.lastname: Mineo
authors.forename: Fernanda Silveira Flores
authors.initials: FS
authors.lastname: Vogel
mesh_terms: D000818:Animals; D000831:Animals, Newborn / Q000276:immunology*; D000833:Animals, Suckling / Q000276:immunology*; D000913:Antibodies, Protozoan / Q000097:blood*; D001938:Brazil / Q000453:epidemiology; D003048:Coccidiosis / Q000453:epidemiology / Q000276:immunology / Q000635:transmission / Q000662:veterinary*; D004797:Enzyme-Linked Immunosorbent Assay / Q000662:veterinary; D005260:Female; D006734:Horse Diseases / Q000453:epidemiology / Q000276:immunology* / Q000635:transmission; D006736:Horses; D007074:Immunoglobulin G / Q000097:blood*; D018445:Infectious Disease Transmission, Vertical; D011247:Pregnancy; D021745:Sarcocystidae / Q000276:immunology*; D016036:Seroepidemiologic Studies
chemical_list: D000913:Antibodies, Protozoan; D007074:Immunoglobulin G
keywords: ELISA; Horse; Immunoglobulin IgG; Neospora Spp.; Sarcocystis neurona; Toxoplasma gondii