Neospora caninum infection and reproductive problems in dairy cows from Brazil: A case-control study

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dc.contributor.authorde Souza, Giovanna Gati [UNESP]
dc.contributor.authorAmatti, Lidiana Zanetti
dc.contributor.authorGarcia, Luana Venâncio
dc.contributor.authorCosta, Letícia Ramos
dc.contributor.authorMinutti, Ana Flávia
dc.contributor.authorMartins, Thais Agostinho
dc.contributor.authorBogado, Alexey Leon Gomel
dc.contributor.authorIgnácio, Fernanda Saules [UNESP]
dc.contributor.authorde Almeida, Breno Fernando Martins
dc.contributor.authorGarcia, João Luis
dc.contributor.authorde Barros, Luiz Daniel [UNESP]
dc.contributor.institutionFaculdades Integradas de Ourinhos
dc.contributor.institutionUniversidade Estadual de Londrina (UEL)
dc.contributor.institutionUniversidade Norte do Paraná
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.date.accessioned2022-04-29T08:46:17Z
dc.date.available2022-04-29T08:46:17Z
dc.date.issued2022-02-01
dc.description.abstractNeosporosis, an infectious disease caused by the protozoan Neospora caninum, has been associated with economic losses in cattle rearing worldwide. However, previous studies have not presented any evidence regarding the association between serological status of neosporosis and alteration of the reproductive parameters. Thus, this study aimed to determine whether N. caninum is associated with reproductive disorders and to evaluate the possible risk factors of the infection. Blood samples from 202 dairy cows, 51 with a history of reproductive disorders (case group) and 151 without (control group), were collected from different farms in Brazil. Epidemiological questionnaires were conducted with all the farmers. Serum samples were subjected to an indirect fluorescent antibody test to detect antibodies against the parasite. In total, 28.22% (57/202) of the cows were seropositive: 47.06% (24/51) from the case group and 21.85% (33/151) from the control group. By logistic regression, cows aged ≥48 months and cows with history of abortion were 4.8 (95% confidence interval [CI] = 1.91–12.05; p = 0.001) and 2.3 (95% CI = 1.06–5.1; p = 0.034) times more likely to be seropositive, respectively. Furthermore, our results show an association between N. caninum seropositivity and abortion in dairy cows from Brazil with poor management conditions and N. caninum seropositivity risk factors for reproductive disorders.en
dc.description.affiliationDepartment of Veterinary Medicine Faculdades Integradas de Ourinhos, Rodovia BR 153, Km 338+420m
dc.description.affiliationDepartment of Preventive Veterinary Medicine Laboratory of Animal Protozoology Universidade Estadual de Londrina, Rodovia Celso Garcia Cid, Pr 445 km 380
dc.description.affiliationDepartment of Veterinary Medicine Universidade Norte do Paraná, Rodovia Pr 218, Km 01
dc.description.affiliationDepartment of Clinical Veterinary Universidade Estadual Paulista, R. Dr. Valter Maurício Corrêa, s/n
dc.description.affiliationUnespDepartment of Clinical Veterinary Universidade Estadual Paulista, R. Dr. Valter Maurício Corrêa, s/n
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipIdFAPESP: 2018/05213-6
dc.identifierhttp://dx.doi.org/10.1016/j.vprsr.2021.100683
dc.identifier.citationVeterinary Parasitology: Regional Studies and Reports, v. 28.
dc.identifier.doi10.1016/j.vprsr.2021.100683
dc.identifier.issn2405-9390
dc.identifier.scopus2-s2.0-85122372964
dc.identifier.urihttp://hdl.handle.net/11449/231588
dc.language.isoeng
dc.relation.ispartofVeterinary Parasitology: Regional Studies and Reports
dc.sourceScopus
dc.subjectAbortion
dc.subjectDairy science
dc.subjectNeosporosis
dc.subjectReproductive disorders
dc.subjectRisk factors
dc.titleNeospora caninum infection and reproductive problems in dairy cows from Brazil: A case-control studyen
dc.typeArtigo
unesp.departmentGeografia - FCTEpt

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Ourinhos - FCTE - Faculdade de Ciências, Tecnologia e Educação