欢迎来到天天文库
浏览记录
ID:55749933
大小:380.91 KB
页数:6页
时间:2020-06-06
《异戊酸对西门塔尔牛增重、日粮养分消化和甲烷排放的影响.pdf》由会员上传分享,免费在线阅读,更多相关内容在应用文档-天天文库。
1、J.SHANXIAGRIC.UNIV.(NaturalScienceEilion)衄学报(自然科学版)2o13.33f4003033异戊酸对西门塔尔牛增重、日粮养分消化和甲烷排放的影响高月平,张振威。,王聪。,刘强,白元生。,师周戈。,刘晓妮。(1.山西省忻州市繁峙县畜牧兽医中心,山西繁峙034300;2.山西农业大学动物科技学院,山西太谷03080l3.山西省生态畜牧产业管理站,山西太原030001)摘要:选用36头12月龄左右、体况良好和体重相近的西门塔尔牛,随机分为4组,研究以玉米秸秆为主的日粮中添加异戊酸(0、0.02、0.04、0.06
2、g·kgW·d)对西门塔尔牛日粮养分消化率、增重性能和甲烷排放的影响。结果表明:日粮添加异戊酸后,0.04、0.06g·kg。W·d组有机物(OM)消化率显著高于对照组;处理组粗蛋白(CP)消化率显著高于对照组;中性洗涤纤维(NDF)消化率显著高于对照组,且0.04g·kgW·d组NDF消化率显著高于0.02g·kgW·d。组,与0.06g·kgW·d纽差异不显著;酸性洗涤纤维(ADF)消化率显著高于对照组,0.04g·kgW·d纽显著高于0.02g·kgW·d。。组;无氯浸出物(NFE)消化率差异不显著。日粮添加异戊酸后,0.04g·kg~W·
3、d纽结束体重显著高于对照组,但与0.02g·kgW·d组和0.06g·kg_。W·d组差异不显著;0.04g·kgW·d组和0.06g·kgW·d组试验期间日增重显著高于对照组,但与0.02g·kg—W·d组差异不显著。试验期间肉牛干物质采食量以0.04g·kgW·d_1组显著低于对照组,其他组间差异不显著;0.04g·kgW·d组和0.06g·kgW·d_1组每千克增重消耗饲料显著低于对照组和0.02g·kgW·d组;0.04g·kgW·d和0.06g·kgW·d组显著低于对照组。由此得出,日粮添加异戊酸0.04g·kgW·d对瘤胃发酵、营齐物
4、质消化和减少甲炕排放有显著促进作用。关键词:异戊酸;消化率;日增重;甲烷;西门塔尔牛中图分类号:$823.94文献标识码:A文章编号:l671—8l51(20l3)04—0284—06EffectsofIsovalericAcidonAverageDailyGain,NutrientDigestionandMethaneEmissionsinSim—mentaIBeefCattlesGaoYueping,ZhangZhenwei,WangOong,LiuQiang,BaiYuansheng。,ShiZhouge。,LiuXiaoni。(i.Fan
5、shiCountyAnimalHusbandryandVeterinaryCenterofXinzhouCityinShanxiProvince,FanshiShanxi034300,China;2.('ollegeoAnimalScienceandTechnology,ShanxiAgriculturalUniversity,TaiguShanxi030801,China;3.E(ologic’allivesto~kindustrymanagementstationinShanxiProvime,TaiyuanShanxi030001,Chin
6、a)Abstract:Thechangesoftheaveragedailygain,nutrientdigestionandmethaneemissionsof36Simmentalbeefcattle(12-month—old.healthyandwithsimilarbodyweight)whichwereselectedanddividedrandomlyintofourgroups,weretestedwhencattleswereadministratedwiththeisovalerateatfour1evels(O,0.02,0.
7、04and0.06g·W·d).TheresultsshowedthatOMdigestibilityofgroupsadministratedwithisovalerateat0.04and0.06g·kg。W·dweresignificantlyhigherthanthatofcontrolgroup(P%0.05),andCPdigestibilitiesofgroupsfeedingwithisovalerateweresignificantlyhigherthanthatofcontrolgroup..ThedifferenceofNF
8、Edigestibilitybetweentreatedgroupsandcontrolgroupwasnotsignificantly
此文档下载收益归作者所有