玉米芯和菜籽粕混合物对肉兔生理机能的影响  

Effects of Corn-cob and Rapeseed Meal Mixture on Physiological Function of Rabbits

作　　者：田刚[1] 陈航[1] 余冰[1] 谢文梅 王乐成[1] 蔡义民 

机构地区：[1]四川农业大学动物营养研究所/动物抗病营养教育部重点实验室,四川成都611130 [2]日本国立畜产草地研究所

出　　处：《核农学报》2016年第9期1857-1863,共7页Journal of Nuclear Agricultural Sciences

基　　金：教育部"春晖计划"项目;四川省科技支撑项目(2016NZ0002);四川农业大学"双支计划"项目

摘　　要：为研究不同水平玉米芯和菜籽粕混合物替代苜蓿草粉后对生长肉兔血清生化参数、免疫功能和肠道功能的影响,选取120只遗传背景相同、健康的35日龄法国伊拉商品兔,适应7 d后按体重相近原则随机分为4组,对照组(A组)饲喂基础饲粮,处理组(B、C和D组)分别用玉米芯和菜籽粕混合物(按质量比1:1混合)替代对照组饲粮中的苜蓿草粉,替代比例为8%、16%和24%。结果表明,3个试验组血清生化参数与对照组差异不显著,各组免疫器官指数无显著差异;血清Ig A含量C组显著高于B组,D组显著高于A、B组,Ig G含量B组显著低于A、C和D组,D组显著高于A、C组,Ig M含量各处理组显著高于对照组。除D组小肠和盲肠指数显著高于A、B和C组外,其余消化器官指数与A组无显著差异。多数盲肠发酵参数差异不显著,仅中期A、D组p H值、氨态氮含量和挥发性脂肪酸含量显著高于B、C组,后期B组挥发性脂肪酸含量显著高于其他组。综上,玉米芯和菜籽粕混合物替代饲粮中的苜蓿草粉不会对家兔的生理机能造成明显损害。本研究结果为家兔生产中高效利用玉米芯和菜籽粕等非常规饲料资源提供了基础数据和思路。The aim of this study was to investigate the effects of diets containing different levels of corn-cob and rapeseed meal on serum biochemical parameters, immune responses and intestinal function of growing rabbits, and evaluate the feasibility of corn-cob and rapeseed meal used as rabbit feed ingredient at the same time. A total of one hundred and twenty healthy 35 - day-old French IRA rabbits that owned same genetic background and similar weight were used in this study and divided into four treatments which had similar weight in a randomized design and ten replicates in each treatment, three rabbits in each replicate after adaptation period of 7 d. Growing rabbits in four treatments fed different diets that had similar nitrogen, energy and fiber and the levels of corn-cob and rapeseed meal mixture in the diets were 0% , 8% , 16% and 24% used as control group （A） , group B, group C and group D, respectively the experimental period lasted for 28 d. The results indicated that no significant difference in serum biochemical parameters was observed between these groups. IgA level in group B was significantly lower than group C, and IgA level in group D was significantly higher than group B and group C. IgG level in group B was significantly lower than other groups and IgG level in group D was significantly higher than group A and C. IgM level in group A was significantly lower than group B, C and D. The ratio of the small intestine, caecum of rabbits in group D were significantly higher than group A, B and C, while there is no significant difference among other digestive organ indexes. The pH, ammonia nitrogen content and total volatile fatty acids of caecum of growing rabbits at the midterm in group A and D were significantly higher than group B and C, total volatile fatty acid at later stage in group B was significantly higher than group A, C and D, and no significant difference was detected in the other indexes. The results show that： the diets containing 8% - 24% corn-cob and rapeseed meal mixture have no adv

关 键 词：生长肉兔 玉米芯 菜籽粕 血清生化参数 免疫功能 肠道功能 

分 类 号：S829.1[农业科学—畜牧学]