喷浆玉米皮对生长肉兔的营养价值评定  

Nutritional value of corn gluten feed for growing rabbits

作　　者：曾绘锦 田刚[1] 鲁院院 曾亭轩 蔡景义[1] Zeng Huijin;Tian Gang;Lu Yuanyuan;Zeng Tingxuan;Cai Jingyi

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动物抗病营养四川省重点实验室,四川成都611130

出　　处：《饲料工业》2020年第15期29-34,共6页Feed Industry

基　　金：成都市农业技术研发项目[2015-NY02-00271-NC];四川省科技支撑计划项目[2016NZ0002];四川农业大学“双支计划”项目。

摘　　要：为评定喷浆玉米皮对生长肉兔的营养价值,选取32只体重相近[(740.63±48.32)g]的35日龄断奶新西兰白兔,随机等分为4组,单笼饲养,分别饲喂1种基础饲粮和3种待测喷浆玉米皮饲粮(80%基础饲粮+20%喷浆玉米皮,后者来自三个产地),采用全收粪法进行为期15 d(预试期11 d,收粪期4 d)的消化试验。结果发现:①三种来源喷浆玉米皮的主要营养物质含量存在一定差异,干物质(DM)均值为90.96%,以DM计,总能(GE)、粗蛋白质(CP)、粗纤维(CF)、中性洗涤纤维(NDF)、酸性洗涤纤维(ADF)、酸性洗涤木质素(ADL)、粗脂肪(EE)、粗灰分(Ash)、钙(Ca)、总磷(TP)和无氮浸出物(NFE)含量均值分别为18.98 MJ/kg、20.20%、11.38%、53.32%、14.61%、2.03%、5.42%、5.30%、0.47%、0.45%和57.69%;三种来源喷浆玉米皮的氨基酸含量也有一定差异,其中精氨酸(Arg)、组氨酸(His)、异亮氨酸(Ile)、亮氨酸(Leu)、赖氨酸(Lys)、蛋氨酸(Met)、苯丙氨酸(Phe)、苏氨酸(Thr)和缬氨酸(Val)含量均值分别为0.92%、0.67%、0.64%、1.83%、0.67%、0.25%、0.69%、0.86%和1.08%。②除GE、DM、CP、TP和NFE外,三种来源喷浆玉米皮的主要营养物质表观消化率差异不显著(P>0.05),DM、CP、CF、NDF、ADF、ADL、EE、Ash、Ca、TP和NFE表观消化率均值分别为42.96%、66.63%、18.46%、21.64%、8.31%、0.17%、85.77%、45.62%、49.07%、36.95%和30.92%,消化能(DE)均值为7.73 MJ/kg;氨基酸消化率普遍较高,均值都在75%以上,除丙氨酸(Ala)、天冬氨酸(Asp)和甘氨酸(Gly)外,其余氨基酸表观消化率无显著差异(P>0.05)。由此可见:喷浆玉米皮对生长肉兔有较高的营养价值,但不同来源喷浆玉米皮的化学组成和营养价值有一定差异。The experiment was carried out to evaluate the nutritional value of corn gluten feed for grow⁃ing rabbits.32 New Zealand white rabbits,aged 35 days and weighing[(740.63±48.32)g],were used in a completely randomized design consisting of 4 groups with 8 replicates in each group.The rabbits in the 4 groups were corresponding to 4 dietary treatments,which were the basal diet,and 80%basal diet supplemented with each of the 3 different origins of corn gluten feeds at 20%.Apparent digestibil⁃ity of major nutrients in corn gluten feed for growing rabbits was measured.The experiment lasted for 15 d(11 d for the pre-trial period and 4 d for the trial period).There were some differences in the content of main nutrients in the 3 corn gluten feeds.The mean value of DM was 90.96%,in terms of DM,the GE,CP,CF,NDF,ADF,ADL,EE,Ash,Ca,TP and NFE content of three corn glu⁃ten feeds averaged 18.98 MJ/kg,20.20%,11.38%,53.32%,14.61%,2.03%,5.42%,5.30%,0.47%,0.45%and 57.69%,respectively.Amino acid content also did some differ among the 3 corn gluten feeds,The mean contents of Arg,His,Leu,Lys,Met,Phe,Thr and Val were 0.92%,0.67%,0.64%,1.83%,0.67%,0.25%,0.69%,0.86%and 1.08%respectively.No differences were found in apparent digestibility of the main nutrients among the 3 corn gluten feeds,except GE,DM,CP,TP and NFE.The means of apparent di⁃gestibility of DM,CP,CF,NDF,ADF,ADL,EE,Ash,Ca,TP,NFE and the digestible energy(DE)of three corn gluten feeds were respectively 42.96%,66.63%,18.46%,21.64%,8.31%,0.17%,85.77%,45.62%,49.07%,36.95%,30.92%and 7.73 MJ/kg.Amino acid digestibility kept stable among the in⁃gredients,except for Ala,Asp and Gly,with the average of which of above 75%.In conclusion,corn gluten feed can be used in rabbit production due to the fair nutritional value evaluated by the nutrient contents and the digestibility which varied with origins.

关 键 词：喷浆玉米皮 营养物质含量 消化能值 表观消化率 生长肉兔 

分 类 号：S816.15[农业科学—饲料科学]