不同能量、蛋白質(zhì)、鈣水平日糧對騾鴨產(chǎn)肝性能影響的研究.pdf

1、學(xué)校名稱：華中農(nóng)業(yè)大學(xué)分類號：y8U6817學(xué)校代碼：10504密級：不同能量、蛋白質(zhì)、鈣水平日糧對騾鴨產(chǎn)肝性能影響的研究EffectsofDifferentLevelsofMetabolizableEnergyandCrudeProteinandCalciumontheFattyLiverPerformanceoftheMuleDucks專業(yè)動物營養(yǎng)與飼料科學(xué)SpecialityAnimalNutritionandFeedScienc

2、e研究方向Subject導(dǎo)師Supervisor碩士研究生Postgraduate家禽營養(yǎng)PoultryNutrition何瑞國教授ProfHeRuiguo張巍zhangwei華中農(nóng)業(yè)大學(xué)動物科技學(xué)院CollegeofAnimalScienceHuazhongAgriculturalUniversity，Wuhan，China二零零五年五月華中農(nóng)業(yè)大學(xué)2fKl5屆碩士學(xué)位論文AbsractThisexperimentwasconduct

3、edtostudytheeffeCtSofdifferentlevelsofmetabolizableenergy(ME)andcrudeprotein(CP)andcalcium(Ca)onthefattyliverperformanceofthemuleducksduringtheoverfeedingThelevelsofME“were1156MJ／kg，1298MJ／kgand1340MJ／kgrespectively；thel

4、evelsoftheCPwere9％，105％and12％respectively；thelevelsofthecalciumwere085％095％and105％respectively12weeksold180muleduckswererandomlyassignedinto9groupseachwith4replicatesof5birdsaccordingtoL9(34)orthogonaldesign，andfedthedif

5、ferentninekindsofdietswhichweremainlycomposedofcornThepurposeoftrailswastodeterminatetheoptimumnutritiondensityOfME，CPandCaofthemuleduckduringtheoverfeedingTheresultswereasfollowsThefatt)liverweightsshowedasignificantdif

6、ferenceamongtheninegroupsarieloverfeeding(PCaCPTilefatty1iverperformanceshowedasignificantdifferenceamongthedifferentlevelsotMEanddifferent1evelsofCafP005)Thefattxlivercompositionincludinetotallipidsproteinandwaterandcal

7、ciumcontentsshowedasignificantdifiereltceamongtheninegroupsafteroverfeedino_fPCaCPThefatty1ivercompositionshowedasigniticantdiflerencemnongthedifferentlevelsofMEanddiflerentlevelsofCa(P005)Theabdominalfatpercentageshowed

8、asignificantdifferenceanaongtheninegroupsafteroverfeedingrPCaCPTheabdominalfatpercenlageshowedasignificantdifferenceamongthedifferentIevelsofMEfP0051Theresultssuggestedthattileoptimumdietarynutritiondensityofmuleduckduri