欢迎来到天天文库
浏览记录
ID:33658808
大小:4.32 MB
页数:55页
时间:2019-02-28
《日粮中添加丁酸钠对围产期奶牛和新生犊牛免疫力和抗氧化能力的影响》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、万方数据万方数据日粮中添加丁酸钠对围产期奶牛和新生犊牛免疫及抗氧化能力的影响llMlllllllllllIIIIIlUllIIHlit11111l摘要Y2697981本论文由两部分组成,第一部分试验研究了日粮中添加丁酸钠对围产期奶牛抗氧化以及免疫能力的影响。第二部分试验研究了围产前期奶牛日粮中添加丁酸钠对犊牛初生重和体尺、抗氧化能力、免疫能力的影响。选择体况良好的围产前期荷斯坦奶牛45头,根据年龄、体重、胎次、前一泌乳期产奶量及预产期接近的原则将奶牛随机分为3组,每组15头。试验分组为:对照组,只饲喂基础日粮,不添加丁酸钠;试验l组,饲喂基础目粮+200g/d丁酸钠(1.5%DM);试验2组
2、,饲喂基础日粮+400g/d丁酸钠(3%DM)。产后各组喂同样的日粮。试验从产前第21d开始到产后第28d结束。产后各组选择对应试验组犊牛进行试验。结果表明:(1)产前7d时,试验1组(200rda组)母牛超氧化物歧化酶含量比试验2组(400rdd组)高15.4%(尸3、1%(尸<0.05)。(2)新生犊牛出生后24h时,试验1组(2009/d组)和试验2组(4009/d组)的谷胱甘肽氧化物酶(GSH.Px)含量与对照组相比,分别提高1.41%和9.9%(尸<0.05)。当新生犊牛出生后48h时,试验1组(2009/d组)、试验2组(4009/d组)谷胱甘肽氧化物酶(GSH.px)含量与对照组相比,降低了13.9%和7.85%(尸4、tsofSodiumButyrateSupplementationonImmunityanditsAntioxidantFunction:’Transiti●CowsandNeonatalCalvesOXlantUnctionsin1ransitionOWSandeonatalCalvesAbstractThisthesisconsistsoftwoparts,thefirstpartoftheexperimenttostudytheeffectofsodiumbutyrateinthedietofprpartumonantioxidantcapacityandimmuneoftransit5、ionCOWS.Thesecondpartoftheexperimentwasdesignedtoresearchtheeffectsofdietarysupplementationofsodiumbutyrateinthedietofprepartumoncalfbirthweightandbodysize,antioxidantcapacity,immunity.45prepartumHolsteindairyCOWSwithsamebodyweight,parity,milkyieldinthelastlactationaswellastheexpecteddateofcalvingw6、ereblockedandassignedrandomlyto.threegroups,eachgroupwith15COWSsupplementedwithdifferentlevelsofsodiumbutyrate(controlgroup,onlyfedthebasaldietwithoutansupplementation;groupl,basaldiet+200g/dofsodiumbutyrate(1.5%DM);group2,basaldiet+400g/dofsodium(3%DM).Theexperimentstartedfrom21dbeforecalvinganden7、ded28daftercalving,thenewborncalvesfrom3groupswereselectedtodeterminetheeffectofsupplementationofsodiumbutyrateonimmunityanditsantioxidantfunctionsincalves.Theresultsshowedthat:Thesuperoxidedismutaselevel(S
3、1%(尸<0.05)。(2)新生犊牛出生后24h时,试验1组(2009/d组)和试验2组(4009/d组)的谷胱甘肽氧化物酶(GSH.Px)含量与对照组相比,分别提高1.41%和9.9%(尸<0.05)。当新生犊牛出生后48h时,试验1组(2009/d组)、试验2组(4009/d组)谷胱甘肽氧化物酶(GSH.px)含量与对照组相比,降低了13.9%和7.85%(尸4、tsofSodiumButyrateSupplementationonImmunityanditsAntioxidantFunction:’Transiti●CowsandNeonatalCalvesOXlantUnctionsin1ransitionOWSandeonatalCalvesAbstractThisthesisconsistsoftwoparts,thefirstpartoftheexperimenttostudytheeffectofsodiumbutyrateinthedietofprpartumonantioxidantcapacityandimmuneoftransit5、ionCOWS.Thesecondpartoftheexperimentwasdesignedtoresearchtheeffectsofdietarysupplementationofsodiumbutyrateinthedietofprepartumoncalfbirthweightandbodysize,antioxidantcapacity,immunity.45prepartumHolsteindairyCOWSwithsamebodyweight,parity,milkyieldinthelastlactationaswellastheexpecteddateofcalvingw6、ereblockedandassignedrandomlyto.threegroups,eachgroupwith15COWSsupplementedwithdifferentlevelsofsodiumbutyrate(controlgroup,onlyfedthebasaldietwithoutansupplementation;groupl,basaldiet+200g/dofsodiumbutyrate(1.5%DM);group2,basaldiet+400g/dofsodium(3%DM).Theexperimentstartedfrom21dbeforecalvinganden7、ded28daftercalving,thenewborncalvesfrom3groupswereselectedtodeterminetheeffectofsupplementationofsodiumbutyrateonimmunityanditsantioxidantfunctionsincalves.Theresultsshowedthat:Thesuperoxidedismutaselevel(S
4、tsofSodiumButyrateSupplementationonImmunityanditsAntioxidantFunction:’Transiti●CowsandNeonatalCalvesOXlantUnctionsin1ransitionOWSandeonatalCalvesAbstractThisthesisconsistsoftwoparts,thefirstpartoftheexperimenttostudytheeffectofsodiumbutyrateinthedietofprpartumonantioxidantcapacityandimmuneoftransit
5、ionCOWS.Thesecondpartoftheexperimentwasdesignedtoresearchtheeffectsofdietarysupplementationofsodiumbutyrateinthedietofprepartumoncalfbirthweightandbodysize,antioxidantcapacity,immunity.45prepartumHolsteindairyCOWSwithsamebodyweight,parity,milkyieldinthelastlactationaswellastheexpecteddateofcalvingw
6、ereblockedandassignedrandomlyto.threegroups,eachgroupwith15COWSsupplementedwithdifferentlevelsofsodiumbutyrate(controlgroup,onlyfedthebasaldietwithoutansupplementation;groupl,basaldiet+200g/dofsodiumbutyrate(1.5%DM);group2,basaldiet+400g/dofsodium(3%DM).Theexperimentstartedfrom21dbeforecalvinganden
7、ded28daftercalving,thenewborncalvesfrom3groupswereselectedtodeterminetheeffectofsupplementationofsodiumbutyrateonimmunityanditsantioxidantfunctionsincalves.Theresultsshowedthat:Thesuperoxidedismutaselevel(S
此文档下载收益归作者所有