蠟樣芽孢桿菌制劑的研制及其在斷乳兔生產(chǎn)中的應用效果研究.pdf

1、河北農(nóng)業(yè)大學碩士學位論文蠟樣芽孢桿菌制劑的研制及其在斷乳兔生產(chǎn)中的應用效果研究姓名：王磊申請學位級別：碩士專業(yè)：動物營養(yǎng)與飼料科學指導教師：谷子林20070602DevelopingofBacilluscereuspreparationanditseffectonweanedrabbitsAuthor：WangLeiSupervisor：GUZi—finMajor：AnimalNutritionandFeedScienceAbstrac

2、tGuidedbythetlleoryofanimalmicroecologyBacilluscereusmicroecologypreparationusedinrabbitswasdevelopedandstudiedinthisresearchTheresearchalSOstudiedtheeffectofBacilluscereusolltheweanedrabbiIsThepresentresearchWaSdividedi

3、ntothreese。tionsFirstisolationidentificationandselectionofBacilluscereusThecec啪interiorsubstanceofhealthyrabbitswascollectedwithoutcontaminationFiveBacilluscereuswereselectedaccordingmorphologyobservingcultivatedcharacte

4、ristic，microscopeobservingandbiochemistrytestAfterhightemperaturetest，onestrainsurvivedfrom90℃treatmentfor10minUteSwasselected11啪ughthesecuritytestwitllchickens，theresultshowthatitwasnontoxicandcouldbethoughtassafeswain‘

5、Second，theselectionoftheoptimalconditionsoffiquidfermentationandfermentationmediumconsistingSelectiontheoptimalconditionsofliquidfermentation：tlleresearchstudiedtheeffectofculturetime，initialpH，culturetemperatureandrotat

6、espeedonviablenumberofstrainsTheoptimalliquidfermentationconditionsshouldunderpH70、30℃，culturedfor20hoursSelectionofthefermentationmediumconsisting：theresearchchoosesc伽floursoybeancakeandbranasfermentationmediumandorthog

7、onaltestWasusedtochoosetheoptimalconsistingneresultshowthatthebestfermentationmediumconsistingshouldbe：coreflour：bran：soybeancake=3：4：2andtheeffectOnviablenumberofstrainswas：coreflour，bran，soybeancakeThirdTheeffectofBaci

8、lluscereuspreparationandthecooperationeffectofBacilluscereuswithShengTaiSuOnehundredandhalflmontholdweanedyouthrabbitsdividedrandomlyinto5treatmentwitll3replicatespertreatmentThefollowingcontents，mechanismofBacilluscereu

9、spreparationthedifferentoftwokindBacilluscereuspreparationandthecooperationeffectofBacilluscelleuswithShengTaiSuwgrestudiedBacilluscerelLspreparationssignificantlyimprovedthegrowthperformance，feedefficiencyincreasedby143