飼料對凡納濱對蝦生長、生化成分及養(yǎng)殖水質的影響.pdf

1、廈門大學碩士學位論文飼料對凡納濱對蝦生長、生化成分及養(yǎng)殖水質的影響姓名：姬紅臣申請學位級別：碩士專業(yè)：海洋生物學指導教師：艾春香王桂忠20050901英文摘要IIITheEffectsofDietariesonGrowthbodybiochemicalcompositionofLitopenaeusvannameitheculturewaterqualityAbstractThefeedingtrialswereconducttostu

2、dytheeffectsofthedietariesongrowthsurvivalratebodybiochemicalcompositionofLitopenaeusvannameifeedconversionratio(FCR)proteinconversionefficiencycompositionstheculturewaterqualitybyfeedingthreekindsoffmulafeeds(feedIfeedI

3、IfeedIIIeachfmulafeedconsistsof0#1#2#3#differentkind.)f105d.Resultsconclusionswereshowedasfollows:1)Feedconversionratio(FCR)proteinconversionefficiencygrowthrateofL.vannameiwerehigherinthefeedIItreatmentthaninthefeedIfee

4、dIIItreatmenthoweverthefinalsurvivalratesofL.vannameiwerelowerinthefeedIItreatmentthaninthefeedIfeedIIItreatment.Nosignificantdifferenceswerefoundthoseindexinvarioustreatments.Besidestheaveragesizeofharvestedshrimpinfeed

5、IIwasexcelledtoothertreatmentsnamelytheaverageweightofLvannameiinfeedIIwashigherthantheothertreatments.ThegrowthrateofLvannameiinthedifferentstagesdescendedwiththecultureperiodprolonging.2)Thekindscontentsoftheaminoacids

6、inthefeedsaresimilartothoseintheshrimpmusclesitindicatedthatthekindscontentsofaminoacidshavegreatlyeffectonthoseintheshrimpmuscleThevalueofn3HUFAn6HUFAwasdecreasingintheshrimpmuscleswithshrimpgrowingnamelythevalueofn3HUF

7、An6HUFAinthejuvenileshrimpwashigherthanthatintheadultshrimpthevalueofn3HUFAn6HUFAinthefmulafeedswasdecreasingfromnumber0tonumber3feedkinditindicatedthatthevalueofn3HUFAn6HUFAinthefeedswassignificantlyaffectthevalueofn3HU

8、FAn6HUFAintheshrimpmuscles.3)Duringthewholecultureprocessthetotaltrendofthewaterqualitychangewasthepollutionincreasedwiththefeedproteinlevelimproving.ThedissolvedoxygentransparencyofculturewaterinfeedIIItreatmentwasalitt