燕麦干草饲喂肉兔的营养价值评定  

Nutritional Value Evaluation of Oat Hay for Feeding Meat Rabbits

作　　者：郭志强[1] 李钰莹 邝良德[1] 谢晓红[1] 李丛艳[1] 郑洁[1] 雷岷[1] GUO Zhiqiang;LI Yuying;KUANG Liangde;XIE Xiaohong;LI Congyan;ZHENG Jie;LEI Min(Sichuan Animal Science Academy,Chengdu 610066,China)

机构地区：[1]四川省畜牧科学研究院,成都610066

出　　处：《动物营养学报》2024年第1期498-506,共9页CHINESE JOURNAL OF ANIMAL NUTRITION

基　　金：国家兔产业技术体系(CARS-43-D-1);四川省省级科研院所科技成果转化项目(2022JDZH0003)。

摘　　要：本试验旨在评定燕麦干草对肉兔的营养价值,为燕麦干草在肉兔配合饲料中的应用提供营养消化参数。试验分为2部分,燕麦干草营养成分分析和饲喂肉兔的消化参数测定。燕麦干草营养成分分析选择产自甘肃省的34个批次的燕麦干草样品进行,消化试验选择上述34个批次中代表性强(营养组成与测定均值差异较小)的燕麦干草。消化试验采用全收粪法进行:选取40只平均体重为(2.2±0.2)kg的70日龄新西兰白兔,随机分成2组,每组20只(公母各占1/2),代谢笼内单笼饲养。对照组饲喂基础饲粮,试验组饲喂试验饲粮(85%基础饲粮+15%燕麦干草)。预试期10 d,正试期7 d。结果显示:1)燕麦干草总能以及干物质、粗蛋白质、粗脂肪、粗灰分、钙、磷、无氮浸出物、粗纤维、中性洗涤纤维、酸性洗涤纤维和酸性洗涤木质素含量分别为15.33 MJ/kg、89.60%、9.71%、2.02%、12.54%、1.13%、0.21%、34.50%、30.83%、48.25%、38.87%和5.58%;肉兔对其表观消化率分别为42.51%、50.15%、56.58%、83.56%、25.12%、27.86%、20.36%、65.23%、28.87%、45.25%、30.87%和-5.86%。2)燕麦干草总氨基酸、赖氨酸、苏氨酸、蛋氨酸、精氨酸、半胱氨酸、组氨酸、缬氨酸、亮氨酸、异亮氨酸、苯丙氨酸和酪氨酸含量分别为8.67%、0.53%、0.45%、0.09%、0.49%、0.12%、0.22%、0.54%、0.09%、0.43%、0.46%和0.26%;肉兔对其表观消化率分别为58.23%、60.23%、62.52%、70.12%、68.25%、65.23%、58.23%、55.24%、62.35%、54.23%、59.68%和63.25%。综上可知,与苜蓿干草相比,燕麦干草粗蛋白质、粗脂肪含量偏低,粗纤维、中性洗涤纤维和酸性洗涤纤维含量较高,酸性洗涤木质素含量较低,粗灰分含量偏高,钙多磷少;肉兔对燕麦干草中各营养成分的消化率存在较大差异,其中总能、干物质、粗蛋白质、粗脂肪、无氮浸出物和限制性氨基酸消化率较高,纤维组分消化率一般,粗灰分、钙、磷和非�The purpose of this experiment was to evaluate the nutritional value of oat hay and provide nutritional parameters for the application of oat hay in rabbit compound feed.The test was divided into two parts:the analysis of the nutritional components of oat hay and the determination of the digestion parameters of feeding meat rabbits.The samples of the analysis of nutritional components were selected from 34 batches of oat hay from Gansu Provine.The digestion test selected the representative oat hay(there was a little difference between nutrient composition and average measured value)of the above 34 batches.Digestion test used the total collection method:forty 70-day-old New Zealand white rabbits with an average body weight of(2.2±0.2)kg were randomly divided into 2 groups with 20 rabbits(half male and half female)per group,and the rabbits were single fed in a metabolic cage.Rabbits in the control group were fed a basal diet,and those in the experimental group were fed the experimental diet(85%basal diet+15%oat hay).The pre-trial period lasted for 10 days,and the experimental period lasted for 7 days.The results showed as follows:1)gross energy(GE)and the contents of dry matter(DM),crude protein(CP),ether extract(EE),crude ash(Ash),calcium(Ca),phosphorus(P),nitrogen free extract(NFE),crude fiber(CF),neutral detergent fiber(NDF),acid detergent fiber(ADF)and acid detergent lignin(ADL)of oat hay were 15.33 MJ/kg,89.60%,9.71%,2.02%,12.54%,1.13%,0.21%,34.50%,30.83%,48.25%,38.87%and 5.58%,respectively;the apparent digestibility of them for meat rabbits were 42.51%,50.15%,56.58%,83.56%,25.12%,27.86%,20.36%,65.23%,28.87%,45.25%,30.87%and-5.86%,respectively.2)The contents of total amino acids(TAA),lysine(Lys),threonine(Thr),methionine(Met),arginine(Arg),cysteine(Cys),histidine(His),valine(Val),leucine(Leu),isoleucine(Iso),phenylalanine(Phe)and tyrosine(Tyr)of oat hay were 8.67%,0.53%,0.45%,0.09%,0.49%,0.12%,0.22%,0.54%,0.09%,0.43%,0.46%and 0.26%,respectively;the apparent digestibility of them for meat rabbits were 58.23%,6

关 键 词：燕麦草 肉兔 营养价值 

分 类 号：S816[农业科学—饲料科学]