果寡糖在肉仔雞飼料中的應(yīng)用研究.pdf

1、東北農(nóng)業(yè)大學(xué)碩士學(xué)位論文果寡糖在肉仔雞飼料中的應(yīng)用研究姓名：王嶺申請學(xué)位級(jí)別：碩士專業(yè)：動(dòng)物營養(yǎng)與飼料科學(xué)指導(dǎo)教師：單安山2001.5.1StudyonDietaryFOSinBroilersAb心吐偽dTwoexperimentswereconductedtostudytheefectofthediferentsupplementlevelofFOSonthecontrolofpotentialescalationofSalmonel

2、latyphunuriumcolonizationduringyoungchickensandtheefectsofFOSPS(probiotics)andZincbacitracinonperformanceintestinalbacteriapopulationandavailabilityofnutrition.Inexperiment1:96broilersrandomlyassignedtofourgroupswithfour

3、replicationspergroup.Thecontrolgroupwasprovidedwiththebasaldiet.FOSwasaddedtothebasaldietatthelevelof0.5%1.0%and2.00.respectively.Chickenswerechallengedperosatday16妙providing~containing108S.typhimuriumpermilliliter.Atday

4、1719and21thececalcontentswereexaminedforS.typhimuriumpHandcecalweight.Theresultshowedthat0.5%1.00aand2.0%FOSreducedsignificantlythepopulationofSalmonellaby56.28%(P0.05)52.9900伊0.05)and45.690.伊》0.05)respectivelyatday17.Th

5、erewasnodiferentamongtreatmentsofFOS.FOSmadececalweightshaveanincreasingtendencybutdidnotafectpH.Inexperiment2:192broilerswererandomlyassignedtofourgroupswithfourreplicationspergroup.Thecontrolgroup(I)was倒withthebasaldie

6、t(notincludinganydrugadditive).FOS(II)DFM(III)andZincbacitracin(N)wasrespectivelyaddedtothe加.!dietatthelevelof1.50a800mglkgand300m叭gtoformfourexperimentdiets.Weightfadintakeandfeedeficiencyweremeasured.Thefeedingtrialsta

7、rsatIdandendsat49d.Atday142135and49fourbroilerspergroupwerekilledandremovedthececumtotestbacteriapHandmoistureeminent.Metabolictrialwasdoneat50dofage.TheresultshowedthatthedietaryFOSinhibitsgrowthsignificantly(P0.05).Dai

8、lyweightgaineachgroupwasrespectively45.75842.17845.428and46.668.Theaverageweightof49dwas2285.9482110.6282269.758and2330.858respectively.FOSdecreaseddailyweightgainandtheweightof49d妙7.83%(P0.05)and7.67%(P0.05).feedintakea

9、ndfeedtogainwerenodiferentamonggroups(P》0.05)butfadintakeoftheFOSgroupwas山creased4.28%3.39%and5.48%respectivelyfeedtogainwasincreased3.98Y0.915Aand4.50%respectivelywhencomparedwiththecontrolPSandZincbacitraein.Zincbacitr