FECAL EXCRETION OF Salmonella Enteritidis IN BROILER LINES ROSS AND ISA LABEL

• Autor(a) principal: Andrade, Maria Auxiliadora
• Data de Publicação: 2007
• Outros Autores: Mesquita, Albenones José de, Stringhini, José Henrique, Chaves, Leandro da Silva, Mattos, Maíra Silva, Oliveira, Adson Santa Cruz, Moraes, Dunya Mara Cardoso
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: Ciência animal brasileira (Online)
• Texto Completo: https://revistas.ufg.br/vet/article/view/2697
• topic: Salmonella; excreções fecais; aves

The invasive capacity and persistence of this pathogen, crop and ceca in apparently healthy birds of two broiler lines raised without growth promoter antibiotics in ration and originated from eggs inoculated eggshell and in allantoidal cavity with Salmonella Enteritidis. Histological and bacteriological exams from cecal and crop were performed with one, seven, 14 and 21 days of age after hatch in broilers of fast and slow growing rate. Bacterio-logical exams were performed fecal excretion with one, eigth, 22 and 35 days. The Salmonella Enteritidis invaded and colonizated the gastrointestinal tract of the two lines tested, but the the infection reduced with age, and was more persistant in Ross broilers. The results were different for two lines. The pathogen was excreted from just one chick of ISA Label at 22 days of age and four Ross chicks until 35 days of age. In order, Salmonella was detected in 87.5% (14/16) and 38,1% (5/16) of ceca; in 81.2% (13/16) and 12.5% (2/16) of crops; in fast and slow growing rate lines, respectively. In apparent healthy organs, excepted the crop, an inflammatory process with predominance of macrophage and lymphocytes. The slow growing rate line was effective to eliminate bacteria in the organism. Key-words: Ceca, crop, fecal excretion, inflammation.