【作者】 李江；

【导师】 谷子林；

【作者基本信息】 河北农业大学 ， 动物营养与饲料科学， 2003， 硕士

【摘要】 本试验选用30日龄断乳獭兔140只进行试验，试验分为两个试验部分：第一部分分为4个组，每组10只，分别饲以4个不同粗纤维水平(7％、9％、12％、14％)的日粮，以观测不同纤维水平对家兔腹泻的发生、生产性能、消化率、肠道pH、盲肠VFA以及血液生理生化指标的影响；第二部分分为10个组(以第一部分的7％组为对照组)每组10只，饲喂的日粮是在7％组日粮的基础上，各组依次给以0.1％、0.2％生态素饮水，添加0.3％EM、添加0.2％、0.4％果糖，添加0.1％、0.2％大蒜素，添加0.1％大蒜素并结合0.1％生态素饮水，添加0.1％大蒜素和0.2％果糖，添加0.2％果糖并结合0.1％生态素饮水。来观测这些调控物质对家兔因低纤维引发腹泻的防治效果以及对生产性能、消化率、血液生理生化指标的影响。 结果表明：饲喂低纤维日粮的家兔腹泻频率远较高纤维组为高，7％、9％、12％、14％组的腹泻频率依次为：59.33％、20.67％、0、0；而在此范围内粗纤维对家兔生长性能的影响不显著(四个组平均日增重分别为：23.92、25.23、27.74、25.70g，P＞0.05)，但随粗纤维含量的增加，采食量上升明显(分别为70.50、74.26、79.82、87.38g，P＜0.05)，日增重和饲料转化率均以12％组为最佳；而且高纤维日粮能显著或极显著(P＜0.05或P＜0.01)的增加盲肠中乙酸的含量以及其pH值；并且高纤维日粮能够显著(P＜0.05)的降低血清中胆固醇的含量。 各种调控物质对因低纤维引起的腹泻均有一定的防治作用，但以生态素组为最好；而且生态素组的生长性能、饲料转化率明显的高于7％组(P＜0.01)；但生态素与果糖、生态素与大蒜素以及大蒜素与果糖的组合效果均较差。更多还原

【Abstract】 In this experiment we choose 30 days old. 140 rex rabbits randomly divided into two compartments. There have four groups, every group had 10 rex rabbits, in the first compartment fed diets with 7%,9%,12%and 14%CF respectively to research the effect of different content of CF in diet on diarrhea frequency, performance, digestibility, pH of gastrointestinal tract, caecal VFA and physiological and biochemical parameters in blood . In the second compartment there have 10 tests and every test had 10 rex rabbits, we take the group of the first compartment which was fed the diet with 7%CF as the control. In this experiment fed diet with 7% CF and added 0.1% probiotrics ,0.2% probiotrics with water,0.3%EM,0.2%FOS,0.4%FOS,0.1 %allicin,0.2%allicin,0.1 % robiotrics+0.1 %allicin, 0.1%allicin+0.2%FOS, 0.2%FOS+0.1% probiotrics with water respectively, to study those controllers effect on preventing from diarrhea of rabbits which was caused because of low CF in diet, and the effect on performance, digestibility, caecal VFA and physiological and biochemical in blood .The result showed : the diarrhea frequency of the group which fed the low CF diet was far higher than those of fed the high CF diet, and the diarrhea frequency of 7%,9%,12%,14% was 59.33%,20.67%,0,0 respectively; but there have no significant different on performance of rabbit in this range of CF, and the gaining weight average day was 23.92g,25.23g,27.74g and 25.70g,p>0.05.but the feed intake of the group which fed with the higher CF diet was significantly higher than those of the group which feed with the low CF diet, the feed intake respectively was 70.50g,74.26g,79.82gand 87.38g,p< 0.05. both the daily gain and feed conversion efficiency of the group fed with 12%CF was the best, and the diet with high CF can significantly (p<0.05) or very much significantly (p>0.01)add the content of acetic and caecal pH ,and it can significantly reduce the content of cholesterin in blood, too.All of the controller have the affection on preventing from diarrhea of rabbits which was caused because of low CF in diet, but the group which fed with diet added probrotics is the best, and the performance of this group is significant higher than those of control(p<0.01),but there have no significant different on digestibility(p>0.05);the affection of 0.1% probiotrics+0.1%allicin, 0.1%allicin+0.2%FOS and 0.2%FOS+0.1% probiotrics with water were worse than the others.更多还原