丝兰属麟凤兰和皂皮树提取物对北京鸭生产性能、小肠绒毛形态的影响

本试验采用单因子完全随机试验设计,研究日粮中添加丝兰属麟凤兰提取物(YSE)和皂皮树提取物(QSE)对0～6周龄北京鸭生产性能、小肠绒毛形态的影响。选用160只1日龄平均体重相近的雄性北京鸭,随机分为对照组和试验组,分别饲喂基础日粮和添加80 mg/kg丝兰属麟凤兰和皂皮树提取物的日粮,每组8个重复,每个重复10只鸭,试验期为6周。结果表明:与对照组相比,日粮中添加80 mg/kg丝兰属麟凤兰和皂皮树提取物显著提高了0～6周龄北京鸭的平均日增重及42日龄北京鸭的胸肌率(P<0.05);丝兰属麟凤兰和皂皮树提取物显著提高了21日龄及42日龄北京鸭十二指肠的绒毛高度、绒毛高度/隐窝深度(V/C值)和绒毛面积(P<0.05)。

Effect of Feeding Diets Containing Yucca Schidigera Extract and Quillaja Saponaria Extract on Growth Performance and Intestinal Villus Morphology of Beijing Ducks

A single factor completely randomized experiment was conducted to evaluate the effects of Yucca schidigera extract and Quillaja saponaria extract on growth performance and intestinal villus morphology of Beijing ducks form 1 to 42 days of age.One hundred and sixty 1-day-old male Beijing ducks were randomly divided into 2 groups with 8 replicates in each group and 10 ducks in each replicate.The ducks in control group were fed basal diet while the ducks experimental group were fed diet containing 80 mg/kg Yucca schidigera extract and Quillaja saponaria extract.The results showed that compared with the control group,the average daily gain of ducksin experimental group from 1 to 42 days of age and brest meat rate of 42-day-old were significantly improved;Yucca schidigera extract and Quillaja saponaria extract have significantly improved duodenal the villus height,villus height/crypt depth ratio value and villus area of 21-day-old and 42-day-old ducks.