Journal
JOURNAL OF ANIMAL PHYSIOLOGY AND ANIMAL NUTRITION
Volume 99, Issue 3, Pages 418-423Publisher
WILEY
DOI: 10.1111/jpn.12256
Keywords
broiler; correlation; intestinal microbiota; nutritional parameters
Funding
- Spanish MINECO [AGL2012-32894, SAF2013-44021-R]
- MICIIN [SAF2008-02616, SAF2010-15670]
- FEDER from the European Union
- FSE from the European Union
- Junta de Andalucia [P06-AGR-02150]
- JAEpredoc (CSIC)
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Growing male Cobb broiler chickens were fed on diets supplemented with additives reported as able to influence intestinal microbiota composition. The diets used were a balanced commercial diet (no additive), inulin (20g/kg), fructose caramel (FC, 20g/kg) and the garlic derivative PTS-O (propyl propane thiosulfonate, 45 and 90mg/kg diet). The composition of the intestinal microbiota was analysed by qPCR at different points of the intestinal tract, and a number of nutritional parameters were also determined. The relative amounts of bacteroides (bacteroides/total bacteria) in the ileal contents correlated (p<0.05) positively with faecal NDF, ADF, hemicellulose and cellulose digestibility. The relative amounts of Escherichia-Shigella (Escherichia-Shigella/total bacteria) in the crop contents correlated (p=0.05) negatively with weight gain of broilers. Faecal N digestibility correlated (p<0.05) negatively with total bacteria in the ileal contents of chickens. The relative amounts of Escherichia-Shigella (Escherichia-Shigella/total bacteria) in the caecal contents correlated (p=0.05) negatively with faecal fat digestibility of broilers. Total bacteria in ileal or caecal contents of growing chickens correlated (p<0.05) negatively with ileal N digestibility. The results here reported suggest that positive or negative correlations can be found between performance parameters and changes in intestinal microbiota composition of growing broiler chickens.
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