不同比例苜蓿草粉饲粮对生长肉兔生长性能、屠宰性能和肉品质的影响  

Effect of Diet with Different Proportions of Alfalfa Meal on the Growth Performance,Slaughter Performance,and Meat Quality in Growing Meat Rabbit

作　　者：栗守仁 曹仕僖 韩尧 李德锋[1,2,3] 朱晓艳 王志昌[1,2,3] 崔亚垒 王成章 刘伯帅 史莹华[1,2,3] LI Shouren;CAO Shixi;HAN Yao;LI Defeng;ZHU Xiaoyan;WANG Zhichang;CUI Yalei;WANG Chengzhang;LIU Boshuai;SHI Yinghua(College of Animal Science and Technology,Henan Agricultural University,Zhengzhou 450046,China;Henan Key Laboratory of Grassland Resources Innovation and Utilization,Zhengzhou 450046,China;Henan Provincial Forage Engineering Technology Research Center,Zhengzhou 450046,China)

机构地区：[1]河南农业大学动物科技学院,郑州450046 [2]河南省草地资源创新与利用重点实验室,郑州450046 [3]河南省牧草工程技术研究中心,郑州450046

出　　处：《中国草食动物科学》2024年第4期88-91,共4页China Herbivore Science

基　　金：国家现代农业产业技术体系项目(CARS-34);河南省优质饲草与动物健康科技创新团队项目(22IRTSTHN022)。

摘　　要：为筛选生长肉兔饲粮中适宜的苜蓿草粉添加比例,选取18只体重相近、40日龄的新西兰白兔,随机分为Ⅰ、Ⅱ和Ⅲ组(每组6个重复,每个重复1只肉兔),分别饲喂29.0%、44.5%和51.8%苜蓿草粉的饲粮。试验期共49 d,其中预试期7 d,正试期42 d。结果表明:①Ⅱ、Ⅲ组肉兔的试验末重和平均日增重均显著高于I组(P<0.05),而其料重比显著低于I组(P<0.05);②Ⅱ、Ⅲ组的宰前活重均显著高于I组(P<0.05),但半净膛重、全净膛重、半净膛率和全净膛率3组间均无显著差异(P>0.05);③3组肉兔背最长肌肌肉的pH值、亮度(L*)、红度(a*)和黄度(b*)均无显著差异(P>0.05);④Ⅱ、Ⅲ组的肝脏重和脾脏重均显著高于Ⅰ组(P<0.05),在脏器指数方面,Ⅱ、Ⅲ组生长肉兔的肝脏指数显著高于Ⅰ组(P<0.05)。综上说明,饲粮中添加44.5%~51.8%的苜蓿草粉,可明显提高生长肉兔的平均日增重、饲料报酬以及肝脏和脾脏的重量。To screen the appropriate proportion of alfalfa meal added to the diet in growing meat rabbits,18 New Zealand White rabbits with similar body weight and 40 days old were selected and randomly divided into groups I,II,andⅢ(6 replicates in each group,with 1 meat rabbit in each replicate).They were fed with 29.0%,44.5%,and 51.8%alfalfa meal diet,respectively.The experiment lasted for 49 days,with a pre trial period of 7 days and a trial period of 42 days.The results showed as follows:①The experimental final weight and average daily gain of meat rabbits in groups II andⅢwere significantly higher than those in group I(P<0.05),while the ratio of feed to weight was significantly lower than that in group I(P<0.05);②The pre-slaughter live weights of groups II andⅢwere significantly higher than that of group I(P<0.05),but there was no significant difference in half eviscerated weight,all eviscerated weight,half eviscerated rate and total eviscerated rate(P>0.05);③There were no significant differences in pH,brightness(L*),redness(a*),and yellowing(b*)of rabbit longest dorsal muscles among three groups(P>0.05);④The liver weight and spleen weight of groups II andⅢwere significantly higher than those of group I(P<0.05).In terms of organ index,the liver index of growing rabbit in groups II andⅢwere significantly higher than that in group I(P<0.05).In summary,adding 44.5%-51.8%alfalfa meal to the diet can significantly improve the average daily gain,feed efficiency,and liver and spleen weight of growing meat rabbits.

关 键 词：苜蓿草粉 生长肉兔 生长性能 屠宰性能 肉品质 

分 类 号：S829.1[农业科学—畜牧学]