High nutrient availability reduces the diversity and stability of the equine caecal microbiota.
Microb Ecol Health Dis
; 26: 27216, 2015.
Article
em En
| MEDLINE
| ID: mdl-26246403
ABSTRACT
BACKGROUND:
It is well known that nutrient availability can alter the gut microbiota composition, while the effect on diversity and temporal stability remains largely unknown.METHODS:
Here we address the equine caecal microbiota temporal stability, diversity, and functionality in response to diets with different levels of nutrient availability. Hay (low and slower nutrient availability) versus a mixture of hay and whole oats (high and more rapid nutrient availability) were used as experimental diets.RESULTS:
We found major effects on the microbiota despite that the caecal pH was far from sub-clinical acidosis. We found that the low nutrient availability diet was associated with a higher level of both diversity and temporal stability of the caecal microbiota than the high nutrient availability diet. These observations concur with general ecological theories, suggesting a stabilising effect of biological diversity and that high nutrient availability has a destabilising effect through reduced diversity.CONCLUSION:
Nutrient availability does not only change the composition but also the ecology of the caecal microbiota.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Idioma:
En
Revista:
Microb Ecol Health Dis
Ano de publicação:
2015
Tipo de documento:
Article
País de afiliação:
Noruega