Please use this identifier to cite or link to this item: http://repositorio.ufla.br/jspui/handle/1/57800
Title: Seroprevalence of Trypanosoma vivax, Anaplasma marginale, and Babesia bovis in dairy cattle
Other Titles: Soroprevalência de Trypanosoma vivax, Anaplasma marginale e Babesia bovis em rebanhos leiteiros
Keywords: Anaplasmosis
Babesiosis
Dairy cattle
Enzootic stability
Trypanosomiasis
Anaplasmose
Babesiose
Bovinos leiteiros
Estabilidade enzoótica
Tripanossomíase
Issue Date: 2016
Publisher: Universidade Federal de Goiás
Citation: BARBIERI, J. de M. et al. Seroprevalence of Trypanosoma vivax, Anaplasma marginale, and Babesia bovis in dairy cattle. Ciência Animal Brasileira, Goiânia, v. 17, n. 4, p. 564-573 Oct./Dec. 2016.
Abstract: In order to determine the prevalence of IgG against Trypanosoma vivax, Anaplasma marginale, and Babesia bovis in dairy cattle in southern Minas Gerais, four hundred cows from 40 dairy farms were randomly selected and distributed in 14 municipalities. Seroprevalence was determined by indirect immunofluorescence assay (IFA). Interviews were conducted to characterize producers and dairy production. Univariate analysis was carried out using chi-square (x2 ) or Fisher’s exact test. The multiple model was constructed with variables associated with p ≤ 0.25 by x2 test using generalized estimating equations (GEE). True prevalence at herd level was 49.6% (31.7–67.5), 100% (92.1–100), and 100% (86.5–100) for T. vivax, A. marginale, and B. bovis, respectively. At individual level, true seroprevalence was 9.9% (6.7–13.1), 96.2% (92.1–99.6), and 93.7% (89.4–97.2), respectively, for T. vivax, A. marginale, and B. bovis. Among the factors adjusted by logistic regression GEE model, “total farm area” (p= 0.021, OR= 0.308, Ic95%= 0.114–0.836) and “fly season” (p= 0.016, OR= 2.133, Ic95%= 1.153–3.948) remained associated with seropositivity for T. vivax. As the State of Minas Gerais is considered non-endemic for T. vivax, producers and veterinarians should be informed about the risk of occurrence of bovine trypanosomiasis.
URI: http://repositorio.ufla.br/jspui/handle/1/57800
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