Effect of Dietary Fructooligosaccharide (FOS) Supplementation on Ileal Microbiota in Broiler Chickens
Abstract
The dietary effect of fructooligosaccharide (FOS) supplementation as an alternative to antibiotics on ileal mucosa and digesta microbiota was investigated in broiler chickens (n = 180). The study included three dietary treatments from d1 to 21: 1) positive control (PC), a wheat-corn-soybean meal based diet containing antibiotics (virginiamycin and monensin); 2) negative control (NC), as wheat-corn-soybean meal based diet without antibiotics; and 3) NC + FOS, as NC diet supplemented 0.5% of FOS. Ileal mucosa and digesta were collected and subjected to 16S rRNA-based next generation sequencing. No significant difference on α-, ß-diversity and bacterial phyla was observed between ileal mucosa and digesta or between the three dietary treatments. Partial least square discriminant analysis and Venn analysis showed that different bacterial genera were associated with different ileal sites or diets. A distinct distance on ileal mucosa bacteria communities were observed between PC and NC + FOS dietary treatments. FOS supplementation increased the number of unique genera and resulted in a more diverse microbiota in the ileal mucosa when compared with PC and NC groups. Furthermore, microorganisms that have pathogenic properties such as He...Continue Reading
References
Effects of feed additives on the development on the ileal bacterial community of the broiler chicken
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