Ocorrence of Antibodies Against Bovine Herpesvirus 1 and Bovine Viral Diarrhoea Virus in Crioula Lageana Cattle

Fino, Tayná Cardim Morais; Melo, Cristiano Barros de; Ramos, A. F.; McManus, Concepta; Leite, Rômulo Cerqueira; Martins, Edison

doi:10.5455/jasa.20130411110618

Cited by 2 publications

(4 citation statements)

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“…The high number of herds that had at least one reagent animal (100.0%) is similar to the results reported by Fino et al (2013) in the state of Santa Catarina and compatible with the 82.4% found in Rio Grande do Sul (QUINCOZES et al, 2007) and with the 97.6% found in the state of Maranhão (CHAVES et al, 2012). These results could be associated with inadequate procedures of sanitary management on the family farms in question, resulting in the introduction of viremic cattle (acute infection or PI).…”

Section: Discussionsupporting

confidence: 80%

“…It was notable in the present study that BVDV infection is widespread in herds on family farms in the microregion studied herein, with similarities to results found in previous studies (GUIMARÃES et al, 2001;NORONHA et al, 2003;SAMARA et al, 2004;FRANDOLOSO et al, 2008;CARBONERO et al, 2011;GÜR, 2011;FINO et al, 2013;SARRAZIN et al, 2013). This indicates that the sanitary variables of prevention and control of the BVDV are similar in the herds studied herein.…”

Section: Discussionsupporting

confidence: 78%

“…A prevalence of 59.9% was reported by Carbonero et al (2011) in Argentina. In Brazil, similar results were observed in other states: 58.3% in Santa Catarina (FINO et al, 2013); 54.1% in Goiás (GUIMARÃES et al, 2001); 56.5% in São Paulo (SAMARA et al, 2004) and 57.7% in Rio Grande do Sul (FRANDOLOSO et al, 2008). In the northeast of the country, similar results (56.0%) were found in Bahia (NORONHA et al, 2003).…”

Section: Discussionsupporting

confidence: 70%

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Epidemiological analysis of infection by the bovine viral diarrhea virus on family farms in Brazil

Rêgo

Filho

Oliveira

et al. 2016

SCA

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The aim of the present study was to determine the seroprevalence of infection by the bovine viral diarrhea virus (BVDV) on family farms, as well as to study the risk factors associated with the infection. In total, 319 blood serum samples were collected from cattle, of reproductive age (>24 months) in 24 herds from 11 cities of the brejo microregion in Pernambuco. The samples were subjected to the seroneutralization test to detect anti-BVDV antibodies. In order to identify the risk factors associated with the BVDV, a questionnaire epidemiologic was applied and followed by statistical analysis of logistic regression, with the serological test considered as the dependent variable (reagent or non-reagent). A prevalence of 51.1% (163/319; C.I. 45.5% -56.7%) was found in the present study. Of the 24 herds sampled, 100.0% contained at least one reagent animal. The prevalence in the counties ranged from 23.1% to 70.0%. The following risk factors were identified in the present study: not providing colostrum (OR 3.85; p=0.018); disease unknown (OR 2.54; p=0.001) and consortium breeding (OR 1.76; p=0.013). Based on these results, it was clear that BVDV infection is widespread in herds on family farms in the microregion studied herein. Health education policies must be implemented for producers and professionals who provide technical assistance. In addition, based on the risk factors identified in the present study, hygiene-sanitary measures should be implemented in order to reduce the prevalence of the BVDV. Key words: BVDV. Cattle. Diagnosis. Risk factors. ResumoObjetivou-se com este estudo determinar a soroprevalência e estudar os fatores de risco associados à infecção pelo vírus da diarreia viral bovina (BVDV) nas unidades produtivas de agricultura familiar. Foram coletadas 319 amostras de soro sanguíneo, de bovinos em idade reprodutiva (>24 meses), procedentes de 24 rebanhos bovinos em 11 municípios da microrregião brejo pernambucano. As amostras foram submetidas ao teste de soroneutralização para detecção de anticorpos anti-BVDV. Para a identificação dos fatores de risco associados ao BVDV, foi aplicado um questionário epidemiológico e foi realizada uma análise estatística de regressão logística, considerando como variável dependente o exame sorológico (reagente ou não reagente). Observou-se com este estudo uma prevalência de 51,1% (163/319; I.C. 45,5% -56,7%). Dos 24 rebanhos amostrados, 100% apresentaram pelo menos um animal reagente. A prevalência nos municípios variou de 23,1% a 70,0%. Os fatores de risco identificados neste estudo foram: não fornecer colostro (OR 3,85; p=0,018); não conhecer a enfermidade (OR 2,54; p=0,001) e criação consorciada (OR 1,76; p=0,013). Diante dos resultados obtidos, constatou-se que a infecção pelo BVDV está disseminada nos rebanhos de agricultura familiar na microrregião estudada e que políticas de educação em saúde devem ser implementadas tanto para os produtores como para os profissionais que prestam assistência técnica. Além disso, medidas higiênico-sanitárias com base n...

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Section: Discussionsupporting

confidence: 80%

Section: Discussionsupporting

confidence: 78%

Section: Discussionsupporting

confidence: 70%

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Epidemiological analysis of infection by the bovine viral diarrhea virus on family farms in Brazil

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Filho

Oliveira

et al. 2016

SCA

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“…7°C (Cordoba et al, 2004). Cattle are kept on natural pastures with good dry matter production during the spring and summer, but little or no production during the autumn and winter (Fino et al, 2013).…”

Section: Methodsmentioning

confidence: 99%

Análise da viabilidade populacional da raça Crioula Lageana

Pezzini

Mariante

Martins³

et al. 2017

ARCH ZOOTEC

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The aim of the present work was to perform a population viability analysis of the Crioula Lageana cattle breed to study its demographic and genetic parameters, as well as to verify the interference of factors that may affect the survival and development this population. Population viability was estimated using 128 hypothetical scenarios to assess the risk of extinction of this genetic resource, simulated over a 500 year period. The results showed that the possibility of extinction of this breed over the next 500 years was remote, even in less favourable scenarios. The deterministic growth rate was always positive during the evaluated period, and the mortality of animals up to one year of age was the most important factor that affected this parameter. The population size increased rapidly until the carrying capacity (k) was reached, which was a limiting factor for population growth. The level of retained heterozygosis in the population in the worst scenario was above 80% and the inbreeding coefficient was always below 0.20 at the end of the 500 years of simulation. The analysis of the population viability showed that the Crioula Lageana population has no longterm risk of extinction, and the carrying capacity is the main limiting factor for population growth. inforMAtion Cronología del artículo. Recibido/Análise da viabilidade populacional da raça Crioula Lageana resUMo PAlAvrAs-chAve AdicionAis Bos taurus. Conservação de recursos genéticos animais. Probabilidade de extinção. Modelagem da dinâmica populacional.

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Ocorrence of Antibodies Against Bovine Herpesvirus 1 and Bovine Viral Diarrhoea Virus in Crioula Lageana Cattle

Cited by 2 publications

References 11 publications

Epidemiological analysis of infection by the bovine viral diarrhea virus on family farms in Brazil

Epidemiological analysis of infection by the bovine viral diarrhea virus on family farms in Brazil

Análise da viabilidade populacional da raça Crioula Lageana

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