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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. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Suínos e Aves. |
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Data corrente: |
30/10/2020 |
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Data da última atualização: |
30/10/2020 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
VAZ, C. S. L.; RECH, D. V.; ALVES, L.; COLDEBELLA, A.; BRENTANO, L.; TREVISOL, I. M. |
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Afiliação: |
CLARISSA SILVEIRA LUIZ VAZ, CNPSA; DAIANE VOSS RECH, CNPSA; LUANA ALVES, UNC/Concórdia; ARLEI COLDEBELLA, CNPSA; LIANA BRENTANO, CNPSA; IARA MARIA TREVISOL, CNPSA. |
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Título: |
Effect of time of therapy with wild-type lytic bacteriophages on the reduction of Salmonella enteritidis in broiler chickens. |
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Ano de publicação: |
2020 |
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Fonte/Imprenta: |
Veterinary Microbiology, v. 240, 2020. |
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DOI: |
https://doi.org/10.1016/j.vetmic.2019.108527 |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: Salmonella Enteritidis remains a leading cause of human foodborne disease, mostly associated with the consumption of contaminated poultry products. To more strategically implement a phage therapy scheme for S. Enteritidis control in broilers, a cocktail containing three wild-type lytic bacteriophages (LBs) previously isolated from chickens was evaluated shortly and later after a challenge. Genomic characterization, lytic spectrum and in vitro efficacy were determined for each studied LB. In independent trials, broilers challenged with S. Enteritidis on day of hatch received phage therapy from 6 to 10 days of age (early treatment), and from 31 to 35 days of age (later treatment). S. Enteritidis analyses were performed before treatment and at 1, 4, 7 and 10 days posttreatment (dpt) in both trials. Partial DNA sequence analysis of each LB revealed close similarity to the Ackermannviridae family. LBs lysed different Salmonella enterica serovars, while other tested bacteria were refractory. An in-vitro reduction of 1.49, 0.65 and 0.58 log10 CFU/mL in S. Enteritidis number was obtained after co-incubation for 3 h with each LB. Both in vivo trials showed a significant reduction in the average number of intestinal S. Enteritidis calculated after phage therapy compared with controls. However, the highest efficiency was found in the later therapy, which resulted in a reduction of 1.08 log10 CFU/g in the average from 4 to 10 dpt, showing potential for future use as a pre-harvest strategy to reduce the S. Enteritidis intestinal colonization in broilers on farms. MenosAbstract: Salmonella Enteritidis remains a leading cause of human foodborne disease, mostly associated with the consumption of contaminated poultry products. To more strategically implement a phage therapy scheme for S. Enteritidis control in broilers, a cocktail containing three wild-type lytic bacteriophages (LBs) previously isolated from chickens was evaluated shortly and later after a challenge. Genomic characterization, lytic spectrum and in vitro efficacy were determined for each studied LB. In independent trials, broilers challenged with S. Enteritidis on day of hatch received phage therapy from 6 to 10 days of age (early treatment), and from 31 to 35 days of age (later treatment). S. Enteritidis analyses were performed before treatment and at 1, 4, 7 and 10 days posttreatment (dpt) in both trials. Partial DNA sequence analysis of each LB revealed close similarity to the Ackermannviridae family. LBs lysed different Salmonella enterica serovars, while other tested bacteria were refractory. An in-vitro reduction of 1.49, 0.65 and 0.58 log10 CFU/mL in S. Enteritidis number was obtained after co-incubation for 3 h with each LB. Both in vivo trials showed a significant reduction in the average number of intestinal S. Enteritidis calculated after phage therapy compared with controls. However, the highest efficiency was found in the later therapy, which resulted in a reduction of 1.08 log10 CFU/g in the average from 4 to 10 dpt, showing potential for future use as a pre-harv... Mostrar Tudo |
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Palavras-Chave: |
Bacteriófagos. |
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Thesagro: |
Frango de Corte; Salmonella Enteritides. |
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Categoria do assunto: |
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Marc: |
LEADER 02310naa a2200229 a 4500
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008 2020 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1016/j.vetmic.2019.108527$2DOI
100 1 $aVAZ, C. S. L.
245 $aEffect of time of therapy with wild-type lytic bacteriophages on the reduction of Salmonella enteritidis in broiler chickens.$h[electronic resource]
260 $c2020
520 $aAbstract: Salmonella Enteritidis remains a leading cause of human foodborne disease, mostly associated with the consumption of contaminated poultry products. To more strategically implement a phage therapy scheme for S. Enteritidis control in broilers, a cocktail containing three wild-type lytic bacteriophages (LBs) previously isolated from chickens was evaluated shortly and later after a challenge. Genomic characterization, lytic spectrum and in vitro efficacy were determined for each studied LB. In independent trials, broilers challenged with S. Enteritidis on day of hatch received phage therapy from 6 to 10 days of age (early treatment), and from 31 to 35 days of age (later treatment). S. Enteritidis analyses were performed before treatment and at 1, 4, 7 and 10 days posttreatment (dpt) in both trials. Partial DNA sequence analysis of each LB revealed close similarity to the Ackermannviridae family. LBs lysed different Salmonella enterica serovars, while other tested bacteria were refractory. An in-vitro reduction of 1.49, 0.65 and 0.58 log10 CFU/mL in S. Enteritidis number was obtained after co-incubation for 3 h with each LB. Both in vivo trials showed a significant reduction in the average number of intestinal S. Enteritidis calculated after phage therapy compared with controls. However, the highest efficiency was found in the later therapy, which resulted in a reduction of 1.08 log10 CFU/g in the average from 4 to 10 dpt, showing potential for future use as a pre-harvest strategy to reduce the S. Enteritidis intestinal colonization in broilers on farms.
650 $aFrango de Corte
650 $aSalmonella Enteritides
653 $aBacteriófagos
700 1 $aRECH, D. V.
700 1 $aALVES, L.
700 1 $aCOLDEBELLA, A.
700 1 $aBRENTANO, L.
700 1 $aTREVISOL, I. M.
773 $tVeterinary Microbiology$gv. 240, 2020.
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Embrapa Suínos e Aves (CNPSA) |
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| Registros recuperados : 123 | |
| 29. |  | VAZ, C. S. L.; KLEIN, C. S.; COLDEBELLA, A.; DAMBROS, R.; FILGUEIRAS. A. L. L. Assessment of microbiology and molecular methods for detection of thermophilic campylobacter in poultry products In: SIMPÓSIO EMBRAPA LABEX DE SANIDADE ANIMAL, 1, Campo Grande, MS, 2009. Anais.... Campo Grande: Embrapa Gado de Corte, Labex-USA, CNPq, 2009. 1 CD-ROM. Projeto/Plano de Ação: 03.08.60.400-02| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Suínos e Aves. |
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| 32. | | VAZ, C. S. L.; RECH, D. V.; TREVISOL, I. M.; SILVA, V. S. Cama de frango: critérios sanitários para reutilização entre lotes. Avicultura Industrial, Itu, ed. 1275, ano 109, n. 3, p. 12-15, 2018.| Tipo: Artigo de Divulgação na Mídia |
| Biblioteca(s): Embrapa Suínos e Aves. |
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| 33. | | VAZ, C. S. L.; RECH, D. V.; KRAMER, B.; ABREU, P. G. de. Cama de frango: influência do manejo de reuso entre lotes na persistência de Salmonella Heidelberg. Avicultura Industrial, Itu, ed. 1291, ano 110, n. 08, p. 12-15, 2019.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 5 |
| Biblioteca(s): Embrapa Suínos e Aves. |
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| 38. | | VAZ, C. S. L.; RECH, D. V.; POZZA, J. dos S.; COLDEBELLA, A.; SILVA, V. S. Campylobacter como contaminante da cama de aviário. Avicultura Industrial, Itu, ed. 1216, ano 103, n. 10, p. 12-17, 2012. Projeto/Plano de Ação: 03.08.06.004.| Tipo: Artigo de Divulgação na Mídia |
| Biblioteca(s): Embrapa Suínos e Aves. |
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| 39. | | VAZ, C. S. L.; RECH, D. V.; LOPES, L. dos S.; SILVA, V. S. Campylobacter em frangos de corte: uma análise de isolados de campo. Avicultura Industrial, Itu, ed. 1332, ano 115, n. 2, p. 14-17, 2024.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 5 |
| Biblioteca(s): Embrapa Suínos e Aves. |
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| 40. | | VAZ, C. S. L.; RECH, D. V.; REBELATTO, R.; DUARTE, S. C.; BESSA. M. C. Campylobacter: implicações para a carne de frango e a saúde pública. Avicultura Industrial, Itu, ed. 1262, ano 108, n. 01, p. 12-14, 2017.| Tipo: Artigo de Divulgação na Mídia |
| Biblioteca(s): Embrapa Suínos e Aves. |
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| Registros recuperados : 123 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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