中文摘要：

采用连续饲喂和瘤胃连续灌注法，研究了大豆寡糖（SBOS）对绵羊消化道内营养物质流通与消化的影响。将9只安装有永久性瘤胃瘘管、十二指肠瘘管和回肠瘘管的内蒙古半细毛羯羊分为3组。试验1组每天通过瘤胃连续灌注占基础日粮风干物质0.6%的SBOS；试验2组灌注占基础日粮风干物质1.2%的SBOS；对照组不灌注SBOS。结果表明：（1）灌注SBOS提高了瘤胃液相食糜流通速率、瘤胃食糜氮流通量、瘤胃微生物氮和十二指肠MN流通量；（2）瘤胃灌注1.2%的SBOS降低了DM、OM、ADF、NDF在十二指肠、回肠、直肠的流通量（P〈0.05或P〈0.01），提高了它们在胃区、大肠中以及整个消化道的消化率（P〈0.05或P〈0.01），提高了CP在小肠中的消化率（P〈0.05），而瘤胃灌注0.6%的SBOS组与对照组相比，各项测定指标差异不显著。

英文摘要：

An experiment was conducted to evaluate the effects of soybean oligosaccharides （SBOS） on nutrient flow and digestion in the gastrointestinal tract of sheep by continuous feeding and rumen infusion procedure. Nine Inner Mongolian semi-fine wool wethers fitted with permanent ruminal, proximal duodenal and ileal cannulas were randomly allotted into one of 3 treatments with 3 each. Treatments were 1） continous infusion with SBOS into rumen daily at 0.6% of basal diet （DM basis） ; 2） infusion with SBOS at 1.2% of basal diet （DM basis） ; 3） control, no infusion with SBOS. Ruminal liquid digesta flow rate, ruminal digesta N and MN flows and duodenal MN flow were increased in sheep infused with 0. 6% or 1.2% SBOS. Duodenal, ileal and rectal flows of DM, OM, ADF and NDF were significantly enhanced （P〈0.05 or P〈0.01）, and DM, OM, ADF and NDF digestibilities in gastric tract, large intestine and total tract （P〈0.05 or P〈0.01） and CP digestibility in small intestine （P〈0. 05） were significantly improved in sheep infused with 1.2% SBOS as compared with control group. No significant difference in all parameters tested was observed （P〉0.05） between sheep infused with 0. 6% SBOS and control group.