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ID:39136723
大小:1.73 MB
页数:56页
时间:2019-06-25
《液态复合微生态制剂的研制与在仔猪生产上的应用》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、TheliquidcompoundMcirobialeclolgicalagentstoresearchandmanufactureandinapplicationoftheweaningpigletsfarmingAbstractThistopicusestheliquidcraNwhichthemulti-strainsCO—fermentationtoproducetheliquidcompoundmicrobialecologicalagents,thiskindofmix-fermentationhasthequal
2、ityofmultiplestrainaccretion,enzymesystemmutualcomplementarity,overallfunction,simplifiedequipmentAfterthemassiveearlierpreparatorywork,inthisexperimenttwoYeast,aEnteroccoccusstrainandtwoBacillusstrainscouldmixferment,atthesametimedeterminatedtheenduranceabilitiesof
3、fivestrainstopHandinhibitedpathogenicEscherichiacoliandStaphylococcusaureusBasedonthemicro-ecologyprincipleandthebasicstudies,aliquidtechnicalprocessofmulti—strainsCO-fermentationinsolidmediumwasestablishedInordertosatisfytheneedoflarge-scaleindustrializedproduction
4、forstockbreeding,fermentationstuaywasperformedtooptimizetheproductionconditionsresultindicatedthat:otherstrainshadthestrongenduranceabilitiesbesidestheEnteroccoccusstraintothepHvalue,separatelyraised3haftertheacidifiedculturemediumtoregister,pHvaluewhen3.0stillcould
5、guaranteeabove40%survived;Andmulti-strainsco-·fermentationliquidstillplayedthestrongerbacteriostasisroletotheEscherichiacoliandStaphylococcusaureus;Inthestoragetest,theliquidsetedintherefrigerator(4℃)preserves,throughtothemicrobialregularexamination.itspreservedtime
6、mightachieve120d.Inbottleandin5Lfermentormixfermentationexperimentcarriedon,fullyusedbetweenvariousstrainsthecooperationparagenesisrelations,initiallydeterminedthemulti-strainsmixliquidstatefermentationproductioncraft,namelythemixfermentstemperaturewas35℃,stirrwas20
7、0r/rain,inoculatedquantitywas5%(v/v),theinoculationorderfurfirstwastheYeastsandEnteroccoccusstrain.aflerwardstwoBacillusstrainsToconfmnitsbiologicaleffect,aexperimentOUpigletswascarriedoutMeanwhilewithothertwokindsofsolidmicrobialecologicalagentswhichindependentlyde
8、velopedwascomparedexperimentselectsthe40dualhybridweaningpigletsofWhitexYorkoftheDalianChurningQiDingshanbase,feedscontains03%solidmicrobi
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