2007
DOI: 10.1590/s0100-736x2007001000006
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Abstract: A diarréia é considerada uma das principais causas de morbidade e mortalidade de bezerros neonatos. Foram colhidas 100 amostras fecais diarréicas e 30 amostras não diarréicas (grupo controle), de bezerros Nelore com até nove semanas de idade com o objetivo de detectar os enteropatógenos Salmonella spp., Escherichia coli, rotavírus, coronavírus, Cryptosporidium spp. e ovos de helmintos. Enteropatógenos foram detectados em 79,0% das amostras diarréicas e em 70,0% das amostras não-diarréicas. No grupo de bezerros… Show more

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Cited by 30 publications
(55 citation statements)
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“…was detected in 20.99% of the samples in current study, similarly to the result observed in calves aged between 7 to 21 days, since they showed 21.62% of positivity for oocysts (13). Similarly, another study conducted in Nellore calves, showed that 25.38% (n=130) of the animals shed oocysts of this parasite in their feces (4). There is a report on a cryptosporidiosis outbreak in 2012 in a herd of 400 calves, from which 35 (8.75%) got sick and 16 (4%) died.…”
Section: Discussionsupporting
confidence: 87%
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“…was detected in 20.99% of the samples in current study, similarly to the result observed in calves aged between 7 to 21 days, since they showed 21.62% of positivity for oocysts (13). Similarly, another study conducted in Nellore calves, showed that 25.38% (n=130) of the animals shed oocysts of this parasite in their feces (4). There is a report on a cryptosporidiosis outbreak in 2012 in a herd of 400 calves, from which 35 (8.75%) got sick and 16 (4%) died.…”
Section: Discussionsupporting
confidence: 87%
“…This growth lead to a solid system for raising heifers, aiming herd replacement; however, producers are still facing some challenges, such as high neonatal mortality. The main cause of early death of calves is diarrhea, mainly caused by infective agents (3)(4)(5). Some authors have described diarrhea as the leading cause of death in calves due to dehydration (3,5) during the first two weeks of life up to 3-4 months of age (5).…”
Section: Introductionmentioning
confidence: 99%
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“…Porém os resultados entre os estudos divergem, devido a diversos fatores como a região geográfica estudada, época do ano, número de animais e método de diagnóstico empregado. A frequência de ETEC varia desde zero até 30% (Lage et al 1993, Mendonça et al 1996, Langoni et al 2004, Rigobelo et al 2006, Oliveira Filho et al 2007, Coura 2011, Moura et al 2012, Andrade et al 2012. EPEC varia desde 1,42% até 42,5% (Rigobelo et al 2006, Aidar-Ugrinovoch et al 2007, Coura 2011, Moura et al 2012, Andrade et al 2012 e STEC e EHEC varia entre 2,7% até mais de 50% (Rigobelo et al 2006, Aidar-Ugrinovoch et al 2007, Coura 2011, Andrade et al 2012.…”
Section: Estudos Epidemiológicos Brasilunclassified
“…de 0,6 a 72,1%, em muitos casos com presença de diarréia, associada ou não a outros agentes etiológicos (GARCIA & LIMA, 1994;SOUZA & LOPES, 1995;FEITOSA et al, 2004;LANGONI et al, 2004;OLIVEIRA-FILHO et al, 2007;CARDOSO et al, 2008;FEITOSA et al, 2008).…”
Section: Introductionunclassified