南方地區(qū)DHI體系的應(yīng)用研究.pdf

1、分類號UDC密級單位代碼湖南農(nóng)業(yè)大學(xué)碩士學(xué)位論文南方地區(qū)DHI體系的應(yīng)用研究Y9323‘2TheApplicationandResearchofDHISysteminSouthemChinaArea研冤生姓名型儉倒指導(dǎo)教師田抖絲麴援副指導(dǎo)老師肖基直受窒旦提交論文日期2Q逝至屢旦論文答辯日期2QQ生旦3旦答辯委員會主席莊回田熬握論文評閱人墨定遠(yuǎn)熬援易遵剛熬援～王查壁副敦援學(xué)位授予日期2QQ生目。旦二00六年六月AbstractInSout

2、hernChinaasitissituatedatthesubtropics，theburninghotclimatehasbroughtthehugeinfluenceoncow’sproductionandhealth，eventheCOW’SbreedandtraitareverypoolthemanagementlevelareverylowerInordertoenhancemilkproduction、improvethep

3、roductionlevelcondition，weshouldselectthesciencetechnologyofraisingmanagementtaiseCOW’SindustrylevelofdevelopmentDHI(DairyHerdImprovement)systemisthemostadvancedfarmmanagementtoolintheinternational，whichisthebasisforweig

4、hstheCOWfieldmanagementlevel，SOcallbeenhancetheCOWgroupmanagementmadlivesthemilkqualitylevel，andprovidestheaccuratedataforthedairyingscientificresearchThisresearch’SfoundationdietiSbasisoncorn—wheatbranconcentratedfeedan

5、dalfalfa，COrnstrawstalk，throughanimalfeedexperimenttodiscussedtheappliesandresearchofDHIsystemeffectonthelactatingCOW’Smilkproduction，themilkingredients，thesomaticcellcount(scointhemilkunderthesouthclimaticconditionsThee

6、xperimentaltimeisfromJanuarytoDecember2005Theexperimentalanimalis110HolsteinlactatingCOWS，whichcomesfromtheHunanProvinceraisinglivestockveterinarianresearchinstitutecowstockfieldThroughmilktypegatheringandthemilkingredie

7、nt，theSCCdeterminationineachmomhformstheDHImonthlystatementAccordingtotheDHIreportform，teflectstherelatedinformation，andtoadjustthereasonableaccentgrainformulatheCOWgroupstructure，completesthemastitisthetrackpreventionwo

8、rkSOCallbedisplayCOW’SproductionperformancewithbiggestpotentialandraisesCOW’SindustryproductionlevelinsouthernChina，andprovidesthesciencereferenceforf試herapplicationandpromotionofDHIsysteminthesouthChinaareaThetestresult

9、indicatedthat：1、UnderthesouthraisingconditionstheDHIsystemapplicationCanremarkablyenhancetheHolsteinCOWPSmilkpmductionquantitysuchas305daysestimatesmilksquantityenhancesfromdeterminationbefore286127kgtopresent316683kg。en