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	Provedor de dados BJM (3) Autor Barrow,Paul A. (3) Oliveira,Gláucia Helaine de (2) Arguello,Yuli Melisa Sierra (1) Berchieri Junior,Angelo (1) Berchieri Junior,Ângelo (1) Berchieri Júnior,Angelo (1) Lemos,Manuel Victor Franco (1) Paiva,Jacqueline Boldrin de (1) Penha Filho,Rafael Antonio Casarin (1) Pinheiro,Lucas Augusto Soeiro (1) Mais... Palavra-chave Salmonella Gallinarum (2) Attenuated strain (1) By-contact infection (1) CbiA (1) CbiA and cobS genes (1) CobS (1) Cobalamin biosynthesis (1) Competitive exclusion (1) Infection (1) Laying hens (1) Organic acids (1) Poultry (1) Salmonella (1) White Leghorn (1) Mais... Tipo do documento Info:eu-repo/semantics/article (2) Info:eu-repo/semantics/other (1) Ano 2009 (1) 2000 (2) País Brazil (3) Idioma Inglês (3)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 3 Primeira ... 1 ... Última Prevention of Salmonella infection by contact using intestinal flora of adult birds and/or a mixture of organic acids BJM Oliveira,Gláucia Helaine de; Berchieri Junior,Angelo; Barrow,Paul A.. This study was carried out to assess the ability of competitive exclusion and a mixture of organic acids to prevent Salmonella infection by contact between newly hatched chicks. A bird infected with Salmonella was placed in a box containing non-infected birds, previously treated with a broth culture of faeces of adult birds (CE) and/or a mixture of organic acids. The number of Salmonella organisms in the caeca of the contact birds was estimated at 4 and 8 days post-challenge. The birds were infected with Salmonella Typhimurium, Salmonella Enteritidis (both repeated 5 times), Salmonella Agona and Salmonella Infantis (3 repetitions). The same approach was used to test the mixture of organic acids alone. In this case the birds received feed containing 0.8% of... Tipo: Info:eu-repo/semantics/article Palavras-chave: Salmonella; Competitive exclusion; Organic acids; By-contact infection; Poultry. Ano: 2000 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822000000200011 Experimental Salmonella Gallinarum infection in light laying hen lines BJM Berchieri Júnior,Angelo; Oliveira,Gláucia Helaine de; Pinheiro,Lucas Augusto Soeiro; Barrow,Paul A.. Although the epidemiology of fowl typhoid in chickens supposedly involves a vertical transmission stage, a previous work run by the authors has suggested that this did not happen in a commercial line of laying hens highly susceptible to systemic disease with Salmonella Gallinarum. A new experiment was carried out in two other lines of commercial layers, considerably more resistant than those used in the previous study. Clinical fowl typhoid was not observed, but Salmonella Gallinarum was isolated from the spleen and liver four weeks after infection and, sporadically, from the ovary. Tipo: Info:eu-repo/semantics/other Palavras-chave: Salmonella Gallinarum; White Leghorn; Infection; Laying hens. Ano: 2000 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822000000100012 A defective mutant of Salmonella enterica Serovar Gallinarum in cobalamin biosynthesis is avirulent in chickens BJM Paiva,Jacqueline Boldrin de; Penha Filho,Rafael Antonio Casarin; Arguello,Yuli Melisa Sierra; Berchieri Junior,Ângelo; Lemos,Manuel Victor Franco; Barrow,Paul A.. Salmonella enterica serovar Gallinarum (SG) is a fowl typhoid agent in chickens and is a severe disease with worldwide economic impact as its mortality may reach up to 80%. It is one of a small group of serovars that typically produces typhoid-like infections in a narrow range of host species and which therefore represents a good model for human typhoid. The survival mechanisms are not considered to be virulent mechanisms but are essential for the life of the bacterium. Mutants of Salmonella Gallinarum containing defective genes, related to cobalamin biosynthesis and which Salmonella spp. has to be produced to survive when it is in an anaerobic environment, were produced in this study. Salmonella Gallinarum is an intracellular parasite. Therefore, this... Tipo: Info:eu-repo/semantics/article Palavras-chave: Salmonella Gallinarum; Cobalamin biosynthesis; Attenuated strain; CbiA and cobS genes; CbiA; CobS. Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822009000300012 Registros recuperados: 3 Primeira ... 1 ... Última

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