無機硼、錳對肉用烏骨雞銅中毒的效應研究.pdf

1、四川農(nóng)業(yè)大學碩士學位論文無機硼、錳對肉用烏骨雞銅中毒的效應研究陳俊杰2005年5月StudyontheeffectofinorganicboronandmanganeseantiblackbonebroilercopperpoisoningChenJunjie(ClinicalVeterinaryMedicine)DirectedbyDengJunliangAbstract：Anexperimentwasconductedwith71f

2、actorialdesigntOstudytheeffectofdietarycopperongrowthperformanceandclinicalpathologyindexesofblackbonebroilers280dayoldhealthybroilerswithanequalweightwereassignedto7groupswith4replicatesatrandom，eachhaving10chicksThebro

3、ilerswererearedincagesThehousewascontrolledinconstanttemperatureandmaintainedona24一h，constant—lightexposureThebroilerswereallowedaccessingtothefoodandWateratlibertyIntrial，thebl’oilerswerefedwithabasalcornsoybeanmealdiet

4、supplementedwith509，200，400，600，800，1000mg／kgand1200mg／kgcopperFinallythedosageofblackbonebroilercopperpoisoningwasreceivedaccordingtotheresultofthisexperimentThen，440dayoldhealthybroilerswerecontactedwith2x2factorialdes

5、igntostudytheefrectofinorganicboronandmanganeseantiblackbonebroilercopperpoisoningThesechickswereassignedrandomlyto11groupswith4replicates，eachhaving10chickswhichwerefedwithabasalcorn—soybeandietsupplementedwithcopperofp

6、oisoningdosages，60mg／kgB，120mg／kgB，200mg／kgMnand400mg／kgMnTheclinicalsymptomgrowthperfornaance，pathologicalchanges，clinicalpathologyindexes，liverfunctionindexesandcoppercontentinserumandliverofchickenswereobservedinorder

7、toestimatetheefrectofBandMnantiblackbonebroilercopperpoisoningTheexperimentresultsindicatedthat：1Thedosageofcopperpoisoninginblackbonebroilerwas600mg／kginmealdiet2Theleaddeathdosageofcopperinblackbonebroilerwas1200mg／kgi

8、nmealdiet3Aslongasthecontentofcopperindietofblackbonebroilerwasover400megcumulatingpoisoningwouldoccurHowever200mg／kgcopperindietcouldpromoteblackbonebroilersgrowth4Boronaddedinthecornsoybeandietofblackbonebroilercouldal

9、leviatecopperpoisoningsymptomandpostponecopperpoisoning：ccurringInaddition，boroncouldprotectlivercellsanderythrocytefromdamagingofcopperForemost，Boroncouldreducecoppercontentinbody5Theadditionofmanganeseinthecorn—soybean