甘肅省隴東地區(qū)牛瞎眼病病因學研究.pdf

1、甘肅農(nóng)業(yè)大學碩士學位論文甘肅省隴東地區(qū)牛瞎眼病病因學研究姓名：高生智申請學位級別：碩士專業(yè)：預防獸醫(yī)指導教師：黃有德舒展20041231甘肅農(nóng)業(yè)大學碩士論文英文摘要2004英文摘要EtiologicalInVestigationofCattleBlindDiseaseintheEastDistrictofGansuProvinceGaoShengzhi(FacultyofVeterinaryMedicine，GansuAgricultu

2、ralUniversity，Lanzhou730070)SummaryThisthesishadjnvestigatedtheepidemicspreadandthecausesororl‘ginonthe“calveseyesblinddisease”whichmainlyshowedeyesblindincattleandhadbeenappearedintheeastdistrictofGansuProvincesuchasHes

3、huicounty。Qingchencountyandseriouslyharmedcalvesinthoseareasince1990sTheinvestigatinggroupwentdeepintotheproducingfieldwherethediseaseheavilyappeared，throughhavingagreatmanyinformalandformalconversationwithlocalveterinar

4、iesandresearchingdaylilypersonnelalsolookingovercorrelationcharacterinformationinthecountiesandvillagesofdiseasedistrict。inthiswaylearninggreatdealofhistoryinformationandepidemicaldataonthisdisease，suchashowhappenedandde

5、velopment，andwhatpathogenesis，causeofdisease，deathinstanceandSOon，alongwithnaturalcondition，venomousnessplants，frequentappearingdiseaseThereaftermoreseriesexperimentdiagnosemethodshadbeencarriedout，suchaslaboratoryidenti

6、fy，directionaldefendexperimentation，pathogenesisidentify，beingsimilartoillnessidentifydistinguishingdiagnosis。animalraisedexperimentation。toxinpick—upidentifyappraiseetcAtthesametimecorrelationpathogenesissurveyandseries

7、distinguishablediagnosehadbeendoneAllaboveepidemicinvestigationandetiologysurveyresultsindicatedthattherewereabroadplanteddaylilyinthediseaseepidemicdistrict，whichhadtoxicityforlivestockalongwiththesecasesallhadeatenthep

8、lantdaylilyincludingrootsintheprocessalsoshowedthatthediseasehadobviousseasonalanditeasilyinfectedthecalvesTheexperimentaldiagnosisfeedexperimentwithdaylilyandpreventiveexperimentjnhealthcattlesustainedtheetiologydiagnos

9、isThedaylilyincludingrootswasthecausationofthisdiseasewhichhadharmedlocalcattlefor10years，andwasfoundbelongtoHemerocallinpoisoningwhichwereextractedandisolated1atelyfromthefulldaylilyincludingrootsasthe1ilytoxinMeanwhile

10、。thisinvestigationstudyfoundouttheepidemicruleandepidemicdistrict，approvedtheaffinityrelationbetweenthedaylilyand“calveseyesblinddisease”。madesurethebreedof1ilyinthedistrictandthelilytoxinAfterfeedexperimentinhealthcattl

11、ewithdaylilyincludingroots。SuccessfullyreproducedthesameblindcalvescasesThedifficultyproblemthatpuzzledtheepidemicdistrictyearswasrevolvedatlastthecattlehusbandrywerebegantodevelophealthilyinthedistrictultimatelyKeywords