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| Registros recuperados : 412 | |
| 122. |  | SILVA. J. P. D.; SILVA, A. P. L.; SILVA, A. de C.; RICALDE, M. P. Emergência de adultos do gorgulho-da-semente-da-manga após o período de frutificação das mangueiras, em Seropédica, RJ: estudo preliminar. In: SEMANA CIENTÍFICA JOHANNA DÖBEREINER, 22., 2022, Seropédica. Bicentenário da Independência: 200 anos de ciência, tecnologia e inovação no Brasil: caderno de resumos... Seropédica: Embrapa Agrobiologia, 2022.| Biblioteca(s): Embrapa Agrobiologia. |
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| 123. | | FREITAS, M. de; SILVA, A. P.; SANTIAGO, A. J. S.; DINIZ, A. S.; MORO, L. Estrategia de abastecimento de materia-prima na champion Papel e Celulose Ltda. In: CONGRESSO FLORESTAL PANAMERICANO, 1.; CONGRESSO FLORESTAL BRASILEIRO, 7., 1993, Curitiba. Floresta para o Desenvolvimento: Política, Ambiente, Tecnologia e Mercado: anais. São Paulo: SBS; [S.l.]: SBEF, 1993. v. 2, p. 707-709.| Biblioteca(s): Embrapa Florestas. |
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| 127. | | NEVES JUNIOR, A. F.; SILVA, A. P.; TEIXEIRA, W. G.; FALCÃO, N. P. S. Curva de resistência à penetração de dois horizontes antrópicos (Terra Preta de Índio) na Amazônia Central. In: REUNIÃO BRASILEIRA DE FERTILIDADE DO SOLO E NUTRIÇÃO DE PLANTAS, 28.; REUNIÃO BRASILEIRA SOBRE MICORRIZAS, 12.; SIMPÓSIO BRASILEIRO DE MICROBIOLOGIA DO SOLO, 10.; REUNIÃO BRASILEIRA DE BIOLOGIA DO SOLO, 7., 2008, Londrina. FertBio 2008: desafios para o uso do solo com eficiência e qualidade ambiental: anais. Londrina: Embrapa Soja: SBCS: IAPAR, UEL, 2008. 1 CD-ROM.| Biblioteca(s): Embrapa Amazônia Ocidental. |
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| 130. | | DANTAS, B. F.; RIBEIRO, L. de S.; SILVA, A. P. da; LUZ, S. R. de S. Correlation between seasonal variations and carbohydrate metabolism in a São Francisco river Valley vineyard. In: SEMANA INTERNACIONAL DA FRUTICULTURA, FLORICULTURA E AGROINDÚSTRIA, 11.; INTERNATIONAL WEEK OF FRUIT CROP, FLORICULTURE AND AGROINDUSTRY, 11.; INTERNATIONAL SYMPOSIUM ON TROPICAL AND SUBTROPICAL FRUITS, 3.; SIMPÓSIO INTERNACIONAL DE FRUTAS TROPICAIS E SUBTROPICAIS, 3., 2004, Fortaleza. Frutal 2004: programa and abstracts. Fortaleza: Instituto FRUTAL: HPP, 2004. 1 CD-ROM.| Biblioteca(s): Embrapa Semiárido. |
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| 134. | | SILVA, A. P.; SILVA, S. R. da; MUNHOZ, C. B. R.; MEDEIROS, M. B. de. Extrativismo de plantas herbaceas e arbustivas de cerradona Chapada dos Veadeiros, GO, Brasil. In: CONGRESSO NACIONAL DE BOTANICA, 50., 1999, Blumenau. Programa e resumos... Blumenau: Sociedade Botanica do Brasil, 1999. p. 289.| Biblioteca(s): Embrapa Cerrados. |
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| 136. | | SILVA, A. P.; BABUJIA, L. C.; FRANCHINI, J. C.; SOUZA, R. A.; HUNGRIA, M. Microbial biomass under various soil- and crop-management systems in short- and long-term experiments in Brazil. Field Crops Research, Maryland, v. 119, n. 1, p. 20-26, Oct. 2010.| Biblioteca(s): Embrapa Soja. |
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| 137. | | BABUJIA, L. C.; SILVA, A. P.; NOGUEIRA, M. A.; HUNGRIA, M. Microbial diversity in an Oxisol under no-tillage and conventional tillage in southern Brazil. Revista Ciência Agronômica, Fortaleza, v. 45, n. 5, esp., p. 863-870, 2014.| Biblioteca(s): Embrapa Soja. |
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| Registros recuperados : 412 | |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Suínos e Aves. Para informações adicionais entre em contato com cnpsa.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Suínos e Aves. |
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Data corrente: |
30/10/2019 |
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Data da última atualização: |
30/10/2019 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
SILVA, A. P. S. P.; COSTA, E. de F.; SILVA G. S.; SOUZA, C. K.; SCHAEFER, R.; VAZ JÚNIOR, I. da S.; CORBELLINI, L. G. |
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Afiliação: |
ANA PAULA SERAFINI POETA, UFRGS; EDUARDO DE FREITAS COSTA, UFRGS; GUSTAVO S. SILVA, UFRGS; CARCARINE KUNZLER DE SOUZA, UFRGS; REJANE SCHAEFER, CNPSA; ITABAJARA DA SILVA VAZ JUNIOR, UFRGS; LUIS GUSTAVO CORBELLINI, UFRGS. |
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Título: |
Biosecurity practices associated with influenza A virus seroprevalence in sows from southern Brazilian breeding herds. |
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Ano de publicação: |
2019 |
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Fonte/Imprenta: |
Preventive Veterinary Medicine, v. 166, p. 1-7, 2019. |
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DOI: |
10.1016/j.prevetmed.2019.02.013 |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: Influenza A virus (IAV) infection is a recognized cause of acute respiratory disease in pigs that can culminate in the decline of performance due to increasing feed conversion and costs of antimicrobial drugs to control secondary infections. Biosecurity practices are the key to prevent transmission of highly contagious agents. The aim of this study was to assess the effect of biosecurity practices on IAV seroprevalence through a cross-sectional study carried out in 404 sows from 21 herds. An indirect ELISA was used to detect antibodies against a nucleoprotein of IAV. To evaluate IAV subtypes (H1N1pdm09, H1N2 and H3N2), all samples positive by ELISA were tested using the hemagglutination inhibition assay (HI). Prevalence ratios (PR) estimates were calculated using multivariate Poisson regression accounted with survey weights. Sixty-four percent (261/404) of sows were positive in the rNP-ELISA and the estimated prevalence was 63.9% (95% CI 55%?73%). All farms had at least one seropositive sow; the frequency of IAV subtypes found in seropositive sows was 51.9% for H1N1pdm09, 38.1% for codetection H1N1pdm09 and H1N2, 8.6% for H1N2, and 0.6% for codetection H1N1pdm09 and H3N2, and 19 herds presented coinfection of H1N1 pdm09 and H1N2. Variables significantly associated with IAV seroprevalence found in the final model were ?bird-proof net? (PR = 0.75; 95% CI: 0.65?0.86) and ?gilt acclimatization unit? (PR = 0.57, 95% CI: 0.50?0.66), showing a protective effect against IAV seroprevalence, and ?external replacement?, which had a positive effect on IAV seroprevalence (PR = 1.38, 95% CI: 1.17?1.64). This study suggests that preventing contact among wild species and swine and using an adaptation area for animals before entry into the herd can be strategies to control the influenza virus in breeding herds. MenosAbstract: Influenza A virus (IAV) infection is a recognized cause of acute respiratory disease in pigs that can culminate in the decline of performance due to increasing feed conversion and costs of antimicrobial drugs to control secondary infections. Biosecurity practices are the key to prevent transmission of highly contagious agents. The aim of this study was to assess the effect of biosecurity practices on IAV seroprevalence through a cross-sectional study carried out in 404 sows from 21 herds. An indirect ELISA was used to detect antibodies against a nucleoprotein of IAV. To evaluate IAV subtypes (H1N1pdm09, H1N2 and H3N2), all samples positive by ELISA were tested using the hemagglutination inhibition assay (HI). Prevalence ratios (PR) estimates were calculated using multivariate Poisson regression accounted with survey weights. Sixty-four percent (261/404) of sows were positive in the rNP-ELISA and the estimated prevalence was 63.9% (95% CI 55%?73%). All farms had at least one seropositive sow; the frequency of IAV subtypes found in seropositive sows was 51.9% for H1N1pdm09, 38.1% for codetection H1N1pdm09 and H1N2, 8.6% for H1N2, and 0.6% for codetection H1N1pdm09 and H3N2, and 19 herds presented coinfection of H1N1 pdm09 and H1N2. Variables significantly associated with IAV seroprevalence found in the final model were ?bird-proof net? (PR = 0.75; 95% CI: 0.65?0.86) and ?gilt acclimatization unit? (PR = 0.57, 95% CI: 0.50?0.66), showing a protective effect against IA... Mostrar Tudo |
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Thesagro: |
Virologia. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02527naa a2200217 a 4500
001 2113669
005 2019-10-30
008 2019 bl uuuu u00u1 u #d
024 7 $a10.1016/j.prevetmed.2019.02.013$2DOI
100 1 $aSILVA, A. P. S. P.
245 $aBiosecurity practices associated with influenza A virus seroprevalence in sows from southern Brazilian breeding herds.$h[electronic resource]
260 $c2019
520 $aAbstract: Influenza A virus (IAV) infection is a recognized cause of acute respiratory disease in pigs that can culminate in the decline of performance due to increasing feed conversion and costs of antimicrobial drugs to control secondary infections. Biosecurity practices are the key to prevent transmission of highly contagious agents. The aim of this study was to assess the effect of biosecurity practices on IAV seroprevalence through a cross-sectional study carried out in 404 sows from 21 herds. An indirect ELISA was used to detect antibodies against a nucleoprotein of IAV. To evaluate IAV subtypes (H1N1pdm09, H1N2 and H3N2), all samples positive by ELISA were tested using the hemagglutination inhibition assay (HI). Prevalence ratios (PR) estimates were calculated using multivariate Poisson regression accounted with survey weights. Sixty-four percent (261/404) of sows were positive in the rNP-ELISA and the estimated prevalence was 63.9% (95% CI 55%?73%). All farms had at least one seropositive sow; the frequency of IAV subtypes found in seropositive sows was 51.9% for H1N1pdm09, 38.1% for codetection H1N1pdm09 and H1N2, 8.6% for H1N2, and 0.6% for codetection H1N1pdm09 and H3N2, and 19 herds presented coinfection of H1N1 pdm09 and H1N2. Variables significantly associated with IAV seroprevalence found in the final model were ?bird-proof net? (PR = 0.75; 95% CI: 0.65?0.86) and ?gilt acclimatization unit? (PR = 0.57, 95% CI: 0.50?0.66), showing a protective effect against IAV seroprevalence, and ?external replacement?, which had a positive effect on IAV seroprevalence (PR = 1.38, 95% CI: 1.17?1.64). This study suggests that preventing contact among wild species and swine and using an adaptation area for animals before entry into the herd can be strategies to control the influenza virus in breeding herds.
650 $aVirologia
700 1 $aCOSTA, E. de F.
700 1 $aSILVA G. S.
700 1 $aSOUZA, C. K.
700 1 $aSCHAEFER, R.
700 1 $aVAZ JÚNIOR, I. da S.
700 1 $aCORBELLINI, L. G.
773 $tPreventive Veterinary Medicine$gv. 166, p. 1-7, 2019.
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