摘要
To investigate the effects of polyphenolic extract from Eucommia ulmoides Oliver leaf (PEEU) on growth performance, digestibility, rumen fermentation and antioxidant status of fattening lambs, 30 weaned male Huzhou lambs were equally divided into three treatments and fed the basal diet supplemented with 0 (CON), 5 (PEEU5) or 10 (PEEU10) g/kg PEEU. Dietary PEEU supplementation did not affect growth performance and apparent digestibility of nutrients. Compared with the CON group, lambs in the PEEU10 group had lower ammonia nitrogen concentration (p < .01) and acetic acid to propionic acid ratio (p < .05) and higher the molar proportion of propionate (p < .05) in rumen fluid. Ammonia nitrogen concentration (p < .01) and the molar proportion of propionate (p < .05) were affected by an interaction between PEEU and sampling day. Dietary PEEU supplementation at 10 g/kg increased total antioxidant capacity (p < .05), superoxide dismutase (p < .05) and glutathione peroxidase (p < .01) activities in serum and glutathione peroxidase activity (p < .05) in liver and decreased (p < .05) malondialdehyde content in serum and liver compared with the CON group. In conclusion, dietary PEEU supplementation affected rumen fermentation patterns and improved antioxidant status of fattening lambs.
摘要译文
研究杜仲多叶提取物（PEEU）对育肥羔羊生长性能，消化率，瘤胃发酵和抗氧化状态的影响，将30只断奶雄性湖州羔羊分为3个处理组，饲喂添加0（CON），5（PEEU5）或10（PEEU10）g / kg PEEU的基础日粮。膳食PEEU补充剂不影响生长性能和营养素的表观消化率。与CON组相比，PEEU10组中的羔羊的氨氮浓度（p .01）和乙酸与丙酸的比例（p .05）较低，而瘤胃液中丙酸的摩尔比例（p .05）则较高。氨氮浓度（p .01）和丙酸盐的摩尔比例（p .05）受PEEU和采样日之间的相互作用的影响。10 g / kg的膳食PEEU补充剂增加了总抗氧化能力（p .05），超氧化物歧化酶（p .05）和谷胱甘肽过氧化物酶（p 。01）与CON组相比，肝脏中血清和谷胱甘肽过氧化物酶活性（p .05）的活性和血清和肝脏中降低的（p .05）丙二醛含量。结论是，膳食PEEU补充剂影响瘤胃发酵模式和提高育肥羊羔的抗氧化状态。
Huawei Liu[1];Ke Li[2];Jinshan Zhao[1];Wen Deng[3];. Effects of polyphenolic extract from Eucommia ulmoides Oliver leaf on growth performance, digestibility, rumen fermentation and antioxidant status of fattening lambs[J]. Animal Science Journal, 2018,89(6): 888-894