Enteric permeability and inflammation associated with day of hatch Enterobacteriaceae inoculation
| Autor: | K. McGovern, K.M. Chasser, M. Trombetta, L.E. Graham, Lisa Bielke, W.N. Briggs, A.F. Duff, Denise Russi Rodrigues, B.D. Graham |
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| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Salmonella
food.ingredient Clostridium perfringens Orosomucoid medicine.disease_cause SF1-1100 Permeability Microbiology Immune system food Enterobacteriaceae gastrointestinal inflammation Yolk IMMUNOLOGY HEALTH AND DISEASE Escherichia coli medicine opportunistic disease Animals Poultry Diseases Inflammation biology Inoculation General Medicine biology.organism_classification Animal culture fluorescein isothiocyanate dextran Clostridium Infections biology.protein Animal Science and Zoology alpha-1-acid glycoprotein Chickens |
| Zdroj: | Poultry Science, Vol 100, Iss 9, Pp 101298-(2021) Poultry Science |
| ISSN: | 0032-5791 |
| Popis: | Early exposure to Enterobacteriaceae may result in inappropriate microbial colonization of the gastrointestinal (GI) tract, induce mild GI inflammation, alter immune system development, and predispose poultry to opportunistic infection. Four experiments were conducted to test Enterobacteriaceae isolates Escherichia coli LG strain (LG), E. coli Huff strain (Huff), Salmonella Enteritidis LB (SE) and Salmonella Typhimurium (ST) on ability to induce GI inflammation. All 4 experiments included a noninoculated control, and day of hatch (DOH) oral inoculation of LG, Huff, SE and ST in experiment 1, LG and SE in experiment 2, and LG, Huff, SE, and ST in experiment 3. Experiment 4 included LG, Huff, a noninoculated control (NIC), and Clostridium perfringens only (NCP) wherein birds received oral C. perfringens challenge on d15-16 to induce necrotic enteritis. Body weight was measured, yolk sacs and spleens were collected, and blood was obtained for serum fluorescein isothiocyanate dextran (FITC-d) recovery and alpha-1-acid glycoprotein (A1GP) concentrations. Samples were taken weekly through 2 wk of age in experiments 1 and 2, or 4 wk of age in experiments 3 and 4. Increased FITC-d recovery was observed for LG and SE on d13 in experiment 2 (P < 0.05), and C. perfringens only birds on d27 in experiment 4 (P < 0.05) as compared to noninoculated controls. Each experiment resulted in notable differences in A1GP serum concentrations over time, with fluctuations in A1GP patterns through d14 based on DOH inoculation (P < 0.05). Over time, A1GP was increased for DOH inoculated birds from d 22 to 29, the fourth wk of life, and d 2-29, the entire experiment, vs. noninoculated controls in experiment 3 (P < 0.05). Similarly, NCP and LGCP showed increased A1GP from d 20 to 27 and d 6 to 27, vs. NIC in experiment 4 (P < 0.05). In experiment 4, C. perfringens challenge resulted in earlier A1GP response in DOH inoculated birds, d 17-20, as compared to NCP birds, d 20-27 (P < 0.05). These results suggest early Enterobacteriaceae exposure may influence early inflammatory state in the GI tract and may also alter patterns of inflammation and responsiveness to pathogens. |
| Databáze: | OpenAIRE |
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