| Data: |
2019 |
| Descripció: |
42 p. |
| Resum: |
Nowadays, antibiotic resistance is one of the main public health problems. Finding alternative strategies to the use of antibiotics in veterinary medicine is one of the great challenges. In poultry production (and in other food animals) some of these possible alternatives would be: a) to take advantage of bacterial cell to cell communication (quorum sensing) and the disruption of that communication (quorum quenching) to control the proliferation pathogens; b) the use of additives in animal feed which modulate the intestinal microbiota, promoting bacterial populations with antibacterial activity. In this study we aimed to: a) to investigate the production of acylhomoserine lactone (AHL) by Yersinia enterocolitica 057 under different conditions and its presence in the gut contents of chickens; b) to investigate the potential antimicrobial activity of the intestinal microbiota against different pathogens in three groups of chickens fed with different feed. These different diets (conventional diet, diet with xylanase, diet with xylanase and xylooligosaccharides) may promote different intestinal microbiota, and thus different antimicrobial activity, if any. The results suggest that the intestinal microbiota may interfere in the growth of Y. enterocolitica and/or its production of AHL. On the other hand, no antimicrobial activity against the pathogens tested could be detected in any of the 3 groups of chickens. The different growth conditions may have influenced the different bacterial populations able to grow on the agar plates and therefore the bacteria with potential antimicrobial activity. |
| Drets: |
Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan aquestes es distribueixin sota la mateixa llicència que regula l'obra original i es reconegui l'autoria de l'obra original.  |
| Llengua: |
Anglès |
| Titulació: |
Zoonosi i Una Sola Salut (One Health) [4315915] |
| Col·lecció: |
Facultat de Veterinària. Treballs de màster i postgrau. Màster Oficial - Zoonosi i Una Sola Salut (ONE HEALTH) |
| Document: |
Treball de fi de postgrau |
| Matèria: |
Aviram ;
Farmacologia veterinària |
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