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| Fonseca,Belchiolina Beatriz; Beletti,Marcelo Emílio; Silva,Max Siqueira da; Silva,Paulo Lourenço da; Duarte,Ivamario Nahas; Rossi,Daise Aparecida. |
| It was studied, in this work, the effects of supplementation of probiotics on the performance, on the pH of crop content, on the morphometry of the ileum and on the number of enterobacteria in the cecum of the broilers. Out of the 120 studied birds, 60 belonged to the test group and 60 to the control group. At 1, 7, 12, 18, 23 and 28 days of age, the chickens and rations were weighed and mortality and morbidity were determined. Then, the birds were sacrificed and the pH of the crop content was measured, ileum fragments were collected for morphometric analysis and the enterobacteria in the cecal content were quantified. The mean pH was lower in the group that was given probiotics at 1, 7 and 18 days of age. There were no differences on ration consumption,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Body weights; Competitive exclusion; Enterobacteria; Intestinal villi; Ration. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982010000800018 |
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| Rossi,Daise Aparecida; Fonseca,Belchiolina Beatriz; Melo,Roberta Torres de; Felipe,Gutembergue da Silva; Silva,Paulo Lourenço da; Mendonça,Eliane Pereira; Filgueiras,Ana Luzia Lauria; Beletti,Marcelo Emilio. |
| Campylobacter coli is an important species involved in human cases of enteritis, and chickens are carriers of the pathogen mainly in developing country. The current study aimed to evaluate the transmission of C. coli and its pathogenic effects in chicken embryos. Breeder hens were inoculated intra-esophageally with C. coli isolated from chickens, and their eggs and embryos were analyzed for the presence of bacteria using real-time PCR and plate culture. The viability of embryos was verified. In parallel, SPF eggs were inoculated with C. coli in the air sac; after incubation, the embryos were submitted to the same analysis as the embryos from breeder hens. In embryos and fertile eggs from breeder hens, the bacterium was only identified by molecular methods;... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Campylobacter coli; Viability; Transmission; Breeder hens. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822012000200014 |
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