【作者】 张采；

【导师】 薛智谋； 姜海燕；

【作者基本信息】 苏州大学 ， 细胞生物学， 2005， 硕士

【摘要】 目的: 了解膨化饲料的特点,研制出适合于实验动物犬、猴的膨化饲料,以替代现有的以米饭、窝窝头为主的传统饲养方式,提高实验动物的营养水平和质量,为实现动物饲料的标准化奠定基础。 方法: 使用单螺杆膨化颗粒机(上海产,SLP—85型)将配制的混合粉料进行膨化加工,检测膨化前后常规养分含量和微生物含量。同一配方的混合粉料分别制成窝窝头和膨化饲料饲喂对照组和试验组动物,苏州西山实验动物中心自制窝窝头饲喂西山组动物,测定动物的体重增长情况。 结果: 膨化加工后,饲料中水分和粗脂肪损失较大(P<0.05),粗蛋白、粗纤维、粗灰分及钙、磷等含量基本不变(P>0.05),微生物数目大大减少。动物试验表明,试验组动物的增重效果好于西山组和对照组(P<0.05),而西山组与对照组动物体重无差异(P>0.05)。 结论: 我们研制的膨化饲料实验犬、猴是喜食的,对动物的生长发育无不良的影响。与常规饲料窝窝头相比,膨化饲料有利于统一营养标准,控制产品质量,且便于贮存、运输、灭菌。更多还原

【Abstract】 Objective:The experiment was to investigate the characters of extruded feed and make the suitable diets to Beagle and Rhesus monkey instead of traditional diets. It can not only increase the nutrient level and the quality of animals, but a necessary basis on standardization in feed.Methods:We measured the quantity of proximate composition and microbe in the extruded feed and the mixture powder after the mix was extruded by a single-screw extruder (SLP-85, Made in Shanghai). Laboratory animals were divided into three groups called Exp., Con. and Xishan. Animals in the Exp. and Con. groups were fed with the extruded feed and the traditional diet which were made from the same mixture; meanwhile we raised the left with the other traditional diets made in Xishan Laboratory Animal Center. The weights of animal were recorded on schedule.Result:After mono-screw extrusion process, no statistical significance of the nutrients was found except moisture and crude fat decreased obviously. Compared with the mixture powder, there were fewer microbes in the extruded feed. In animal test, we found extruded feed resulted in statisticallysignificant improvements in the animal’ s weight-gain and the two kinds of traditional diet had the same feeding effect.Conclusion:The results of experiment suggest that the extrusion technology can be successfully applied to diets for the laboratory animal such as Beagle and Rhesus. Compared with traditional diet, extruded feed is more efficient and convenient in standardization, preservation, transportation and sterilization.更多还原