2011
DOI: 10.1590/s0100-736x2011000800010
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Fatores de risco associados à infecção por Cryptosporidium spp. e Giardia duodenalis em bovinos leiteiros na fase de cria e recria na mesorregião do Campo das Vertentes de Minas Gerais

Abstract: Este estudo observacional do tipo transversal foi realizado com o objetivo avaliar os fatores de risco associados à infecção por Cryptosporidium spp. e Giardia duodenalis em bezerras provenientes de 20 propriedades leiteiras, localizadas na mesorregião do Campo das Vertentes de Minas Gerais. As propriedades foram divididas igualmente em dois grupos de acordo com o tipo de leite produzido: Grupo I = Leite B e Grupo II = Leite cru refrigerado. Amostras fecais de 356 bezerras foram coletadas no período de setembr… Show more

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Cited by 13 publications
(6 citation statements)
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“…Older lambs demonstrate delayed growth, and adults are generally refractory to infection and illness (XIAO et al, 1993), but can eliminate oocysts in the feces, thereby contaminating the environment (MAJEWSKA et al, 2000;ZUCATTO et al, 2015). In Brazil, studies on cryptosporidiosis in ruminants have primarily been performed in the Southeast, mainly in the states of Rio de Janeiro (COSENDEY et al, 2008;FIUZA et al, 2011), Minas Gerais (GARCIA & LIMA, 1993;GARCIA & LIMA, 1994;LIMA et al, 2013), andSão Paulo (AQUINO et al, 2015;COELHO et al, 2016;FEITOSA et al, 2004;FÉRES et al, 2009;PAZ E SILVA et al, 2013SEVÁ et al, 2010;SILVA-JUNIOR et al, 2011). In the state of Paraná, infection with Cryptosporidium was evaluated in captive birds (NAKAMURA et al, 2009), dogs with diarrhea (NAVARRO et al, 1997), horses (FUJII et al, 2014, wild birds and mammals (SNAK et al, 2015), cattle (TOLEDO et al, 2017 and sheep (SNAK et al, 2017).…”
Section: Introductionmentioning
confidence: 99%
“…Older lambs demonstrate delayed growth, and adults are generally refractory to infection and illness (XIAO et al, 1993), but can eliminate oocysts in the feces, thereby contaminating the environment (MAJEWSKA et al, 2000;ZUCATTO et al, 2015). In Brazil, studies on cryptosporidiosis in ruminants have primarily been performed in the Southeast, mainly in the states of Rio de Janeiro (COSENDEY et al, 2008;FIUZA et al, 2011), Minas Gerais (GARCIA & LIMA, 1993;GARCIA & LIMA, 1994;LIMA et al, 2013), andSão Paulo (AQUINO et al, 2015;COELHO et al, 2016;FEITOSA et al, 2004;FÉRES et al, 2009;PAZ E SILVA et al, 2013SEVÁ et al, 2010;SILVA-JUNIOR et al, 2011). In the state of Paraná, infection with Cryptosporidium was evaluated in captive birds (NAKAMURA et al, 2009), dogs with diarrhea (NAVARRO et al, 1997), horses (FUJII et al, 2014, wild birds and mammals (SNAK et al, 2015), cattle (TOLEDO et al, 2017 and sheep (SNAK et al, 2017).…”
Section: Introductionmentioning
confidence: 99%
“…Both parasites (i.e., Cryptosporidium spp., Giardia spp.) reported herein in some animals cause damage to the host intestinal epithelium, leading to reduction in nutrient absorption, weight loss, and important economic impact (SILVA JUNIOR et al, 2011;ZAMBRISKI et al, 2013).…”
Section: Discussionmentioning
confidence: 95%
“…In the current study, it is believed that the hygiene conditions of the farm could facilitate the maintenance and dissemination of protozoan. It is known that excessive humidity and accumulation of organic matter (e.g., faeces and mud), as well as the sharing of the same environment between young and adult animals may be considered risk factors for this infection (GONG et al, 2017;OLSON et al, 2004;SILVA JUNIOR et al, 2011). From an epidemiological perspective, adult animals are very important as although they are asymptomatic, they are able to eliminate oocysts, contaminating the environment (DELAFOSSE et al, 2015;GONG et al, 2017;).…”
Section: Discussionmentioning
confidence: 99%
“…infection in dairy cattle was also studied before. 40 The authors of that study evaluated several factors associated with infections in calves, where one of the most relevant was the property management and the use of shared facilities.…”
Section: Discussionmentioning
confidence: 99%