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时间:2020-04-17
《蒸汽压片玉米及膨化大豆对奶公犊生长和屠宰性能的影响-论文.pdf》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、中国农业大学学报2013,18(2):124—129JournalofChinaAgriculturalUniversity蒸汽压片玉米及膨化大豆对奶公犊生长和屠宰性能的影响刘萍孟庆翔解祥学李锡智赵金维。崔振亮任丽萍(1.动物营养学国家重点实验室/中国农业大学动物科技学院,北京100193;2.北京三元绿荷奶业集团,北京100018;3.北京金维福仁清真食品有限公司,北京102600)摘要为探究蒸汽压片玉米和膨化大豆对犊牛生长性能和屠宰性能的影响,选用3日龄内吃足初乳的健康荷斯坦公犊牛39头,随机分为3组,每组13头,分别为代乳粉组(I组
2、)、50代乳粉+蒸汽压片玉米及膨化大豆混合精料组(1I组)和蒸汽压片玉米及膨化大豆混合精料组(1lI组)。1~3O日龄,3个组均饲喂鲜奶,30日龄后各组逐步替换成试验日粮,150日龄时屠宰,并测定屠宰性能。运用sAS8.0软件进行数据统计处理。结果表明:31~90dI组犊牛的日增重极显著高于Ⅱ组和Ⅲ组(PO.05);M组的各屠宰指标与I组均
3、没有显著差异(P>0.05),而Ⅲ组的宰前活重和眼肌面积有高于I纽的趋势(.P<0.1);饲料成本分析表明,Ⅲ组的饲料成本极显著低于I组(P<0.01)。蒸汽压片玉米及膨化大豆可以替代代乳粉饲喂断奶后犊牛,并能增大眼肌面积,显著降低生产成本。关键词奶公犊;蒸汽压片玉米;膨化大豆;生长性能;屠宰性能中图分类号S823文章编号1007—4333(2013)02—0124—06文献标志码AEffectsofsteam—flakedcornandextrudedsoybeanmealonthegrowthandslaughterperforman
4、ceofdairybullcalvesLIUPing’,MENGQing—xiang’,XlEXiang—xue’,LIXi—zhi,ZHAOJin—wei。,CUIZhen—liang’,RENLi-ping’(1.stateKeyLaboratoryofAnimalNuton/CollegeofAnimalScienceandTechnology,AgriculturalUniversity,Beijing100193,China;2BeijingSanyuanLeheDairyCompany,Beijing100018,China;
5、3.BeijingJinweiFurenMuslimFoodCo.,Ltd.,Beijing102600,China)AbstractThisexperimentaimedtoinvestigateeffectofsteam—flakedcornandextrudedsoybeanmealonthegrowthandslaughterperformanceofcalves.Inthisexperiment,thirty—nine3-dayHolsteinbullcalvesfedcolostrumswererandomlydividedi
6、ntothreegroupswith13calvesforeachgroup,includingmilkreplacergroup(groupI),50%ofmilkreplacerandconcentrategroup(groupⅡ),andconcentrategroup(group11).Thecalvesofthreegroupswerefedmilkatfirst30days,thengraduallyreplacedbytheexperimentaldiets.After150days,allcalveswereslaught
7、eredtoevaluatetheslaughtertraits.DatawereanalyzedusingtheSAs8.0.TheresultshowedthattheaveragedailygainOfgroup1wassignificantlyhigherthanthatofgroup11andgroupⅢ(P<0.01)during31—90days,butwiththeincreasingofage,theaveragedailygainofgroup1andgroupⅢweregraduallyapproachinggrou
8、pIandeventuallyexceededgroupI.ThecalvesweightofgroupI,ⅡandIllwas230.18kg,225.10kgand229.45kgresp
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