Correlations between changes in intestinal microbiota composition and performance parameters in broiler chickens.
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 (20 g/kg), fructose caramel (FC, 20 g/kg) and the garlic derivative PTS-O (propyl propane thiosulfonate, 45 and 90 mg/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.
['Rubio|L A|LA|', 'Peinado|M J|MJ|', 'Ruiz|R|R|', 'Suárez-Pereira|E|E|', 'Ortiz Mellet|C|C|', 'García Fernández|J M|JM|']
D000821:Animal Feed D000824:Animal Nutritional Physiological Phenomena D000818:Animals D002182:Candy D002241:Carbohydrates D002432:Cecum D002645:Chickens D003426:Crop, Avian D004032:Diet D019587:Dietary Supplements D007082:Ileum D007444:Inulin D008297:Male D013886:Thiosulfonic Acids
correlation intestinal microbiota broiler nutritional parameters