斑节对虾饲料鱼粉替代分析与商品饲料环境安全性评价

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1、上海海洋大学硕士学位论文monodonis2.37％ofdiet(DMbasis)or5.88％ofdietaryprotein.3.ReplacementoffishmealbymixplantproteinsindietsforPenaeusmonodonAfeedingtrialwasconductedtoevaluatethemaximumlevelofsubstitutionofdietaryfishmealbyvariousproportionsofsoyproteinconcentrateandpeanutbransupplemented

2、withcoatedlysineandmethionineforPenaeusmonodon.Theshrimp(meaninitialweight1.27±0.02g)wereassignedtothe18500Lofplasticcylinderandfedwithsixdietscontaining40%crudeproteinand7%crudefatatatemperatureof30±1.0℃for56days.Thesixtestdietscontaining30%(F0,control),27%(F1),24%(F2),21%(F3),

3、18%(F4),15%(F5)fishmealrespectively.TheresultsshowedthattheshrimpfedwithF0gainthemaximumWG(245.02%)andSGR(2.58%/d)valuesandsignificantlyhigherthanthoseofshrimpfedwithF3～F5(P<0.05).WhentheshrimpfedwithF1,thefeedconversionratiowasthelowestandsignificantlylowerthanthoseofshrimpfedw

4、ithF3～F5(P<0.05).ThesurvivalrateofshrimpfedwithF4wasthelowestandsignificantlylowerthanthatofshrimpfedwithF0～F2(P<0.05),butwithoutstatisticaldifferenceswithotherdiets(P>0.05).Thedifferentleveloffishmealsubstitutedbyplantproteinshavenosignificanteffectsonthewholebodycompositionofs

5、hrimp(P>0.05).WhentheshrimpfedwithF2,theactivityofSODinhepatopancreaswasthehighestandsignificantlyhigherthanthatofshrimpfedwithF0(P<0.05),butwithoutstatisticaldifferenceswithotherdiets(P>0.05).HowevertheactivitiesofACPandLSZinhepatopancreashadnosignificantdifferencebetweeneachgr

6、oups(P>0.05).TheactivityofSODinmusclewashighestinF5andsignificantlyhigherthananyothergroups(P<0.05).WhentheshrimpfedwithF1,theactivityofACPinmusclewashighestandsignificantlyhigherthanthoseofshrimpfedwithF2～F4(P<0.05).TheactivityofLSZinmusclewerehighestinF4andF5andsignificantlyhi

7、gherthanF0～F3(P<0.05).BasedonthedataofWGandSGR,theplantfeedstuffssupplementedwithcoatedVIII上海海洋大学硕士学位论文aminoacidscouldreplacedietaryfishmealinP.monodonby20%andthenon-specificimmunityofshrimpwasenhancedwithincreasingofthedietaryplantproteins.4.Theenvironmentalsafetyevaluationonth

8、ecommercialfeedsforPenaeusmonodonWeinvestigated