Effect of Active Dried Yeast on Intestine Development,Intestinal Flora and Serum Cholesterol Mass Concentration of Quails

[ Objective] The experiments aimed to investigate the effect of dietary active dried yeast on intestine development, intestinal flora and serum cholesterol mass concentration of quails. [ Method] One-day-old 180 quails were randomly divided into 4 groups, 3 repetitions, each with 15 quails. Control group was fed with basic dietary, while experimental groups were added with 0.6, 1,2 g/kg active dried yeast respectively in basic dietary, [ Result] Addition of active dried yeast had little effect on quails＇ intestine development（ P 〉0.05）. With the increasing adding amount active dried yeast, the number of colibacillus decreased significantly （P 〈0.05） while lactobacillus content increasing sharply （P 〈 0.05）. Dietary with 1 and 2 g/kg active dried yeast can significantly decrease the mass concentration of cholesterol in serum （ P 〈 0.05）. [ Conclusion ] Adding active dried yeast in feed can decrease the number of colibacillus while increasing lactobacillus content in intestinal tract of quails, also can low serum cholesterol mass concentration.

TiO_2-HPA薄膜抑制大肠杆菌作用研究

用溶胶-凝胶法制备了不同浓度、不同层数的掺有杂多酸的TiO2薄膜,研究了HPA浓度、镀膜层数对薄膜抑菌性能的影响。结果表明:掺杂1.25%HPA的TiO2-HPA薄膜的抑菌效果较好,随着镀膜层数的增加,膜的抑菌性能逐步提高。