| Autor: |
Elizabeth Santin, R. M. Hayashi, Leonardo B. Miglino, Larissa Pickler, M. C. Lourenço, L. N. Kuritza, J. F. Durau |
| Rok vydání: |
2015 |
| Předmět: |
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| Zdroj: |
Journal of Applied Poultry Research. 24:15-22 |
| ISSN: |
1056-6171 |
| DOI: |
10.3382/japr/pfu002 |
| Popis: |
SUMMARY Salmonellosis is one of the most common worldwide zoonosis, and the Enteritidis and Typhimurium serotypes are most prevalent. In this study, we evaluated the effects of a diet supplemented with mannanoligosaccharides (MOS) on CD3+ ,C D4+ ,C D8+, and goblet cell counts in the intestines of broilers vaccinated and challenged with Salmonella Enteritidis. The evaluation was based on randomized experiments including 45 chickens divided into 3 experimental groups. Group 1 received a nonsupplemented control diet. Group 2 received a diet supplemented with 1 kg MOS/t from d 1 to 21 and 0.5 kg MOS/t from d 22 to 56. Group 3 received a diet supplemented with 2 kg MOS/t from d 1 to 21 and 1 kg MOS/t from d 22 to 56. Chickens fed the lower level of MOS demonstrated reduced fecal shedding of Salmonella 14 d after being challenged (P < 0.05). Both groups of MOS-supplemented chickens showed an increase in CD4+ and CD8+ cell counts in the ileal and cecal mucosa after being challenged with Salmonella Enteritidis (SE). Supplementation with MOS increased the specific T lymphocyte infiltration in the intestinal mucosa of chickens vaccinated and challenged with Salmonella Enteritidis. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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