Effects of dietary inclusion of Lactobacillus and inulin on growth performance, gut microbiota, nutrient utilization, and immune parameters in broilers
2019
Wu, X.Z. | Wen, Z.G. | Hua, J.L.
The effects of dietary Lactobacillus (BCRC 16092) and inulin on growth performance, intestinal microflora, mineral utilization, and tissue mineral contents were evaluated in broilers. The experiment was conducted using 1,152 one-day-old broilers randomly distributed to 9 treatments in a factorial arrangement (3 × 3) using 3 levels of inulin (0, 1, and 2%) and 3 levels of Lactobacillus addition (10⁸, 10⁹, and 10¹⁰ CFU/kg). Broilers (1 D of age; 8 replicates per treatments and 16 broilers per replicate) with an initial body weight of 48.36 ± 0.21g were evaluated for 42 D. A 4-D mineral digestibility trial was conducted during the final week of the experiment. The results showed that Lactobacillus supplementation can increase average daily gain and nutrient digestibility and improve feed/gain in broilers (P < 0.05). Moreover, Lactobacillus and inulin supplementation increased the numbers of Lactobacillus and Bifidobacteria, increased serum concentration of IgG and IgA, and decreased the numbers of Escherichia coli and pH in ileum and cecum. The present study demonstrated Lactobacillus and inulin fed to broilers has a positive effect on gut microbiota, growth and nutrient utilization, immune system, and mineral metabolism.
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