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ID:32107467
大小:3.35 MB
页数:48页
时间:2019-01-31
《不同蛋白和碳水化合物水平对黑鲷幼鱼生长性能和肌肉品质的影响-(11226)》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、万方数据不同蛋白和碳水化合物水平对黑鲷幼鱼生长性能和肌肉品质的影响无显著性影响(扮O.05)。同一碳水化合物水平下,两种蛋白水平组的肌纤维密度出现显著性差异(P<0.05)。随着蛋白水平降低,总胆固醇、甘油三酯呈上升趋势(P<0。05),谷丙转氨酶活性增大(P<0.05),碳水化合物添加水平增加,血清中甘油三酯含量增加(尸<0.05)。结论:不同蛋白和碳水化合物水平对黑鲷生长性能、背肌的常规营养组成无显著性影响,但对氨基酸组成、质地和血清生化指标有一定影响。关键词:蛋白质;碳水化合物;黑鲷:生长;营养组成;肌肉品质V万方数据不同蛋白和碳水化合物水平对黑鲷幼鱼生长性能和肌肉品质的影响Abst
2、ractAn8-weeksfeedingtrialwasconductedtoevaluatetheeffectsofdifferentdietaryproteinandcarbohydratelevelsonthenutritionalcompositionandfleshqualityofdorsalmuscle.Sixexperimentaldietswereformulatedtocontaintwoproteinlevels(41.0%,37.5%)andthreecarbohydratelevels(takenwheatflourascarbohydratesource,the
3、contentofwheatflourwas19%,24%,29%),tamedasL1(19/41),L2(24/41),L3(29/41),L4(19/37.5),L5(24/37.5)andL6(29/37.5),respectively.Takenblackseabreamasthetestobjectfish(meaninitialbodyweightwas9.95g土0.22曲,attheendoffeedingtrial,dorsalmusclewassampledfromeachfish.Proximateandaminoacidcompositions,aswellash
4、ist0109yandtextureofdorsalmusclewereanalyzed.Resultsshowedthatgrowthperformanceandfeedutilizationratewerenotsignificantlyaffectedbydifferentproteinandcarbohydratelevelsp0.05);Atthesamecarbohydratelevel,theweightgain(WG)andspecificgrowthrate(SGR)hadnosignificanteffectsp0.05).Andtheproteinefficiency
5、ratiopER)andproteinproductivevalue(PPV)hadnosignificanteffectspO.05).Atthesameproteinlevel,theweightgain(WG)andspecificgrowthrate(SGR)hadnosignificanteffectsp0.05).Andtheproteinefficiencyratio(PER)andproteinproductivevalue(PPⅥhadnosignificanteffectsp0.05).Theaveragefeedintake(FI)werenotsignificant
6、lyaffectedbytreatments仔,>0.05).Theapparentdigest日ailitycoefficientsoffishweresignificantlyaffectedbytreatments俨7、amwerenotsignificantlybythetreatmentstoo(尸>O.05).Alltheconventsoftheaminoacidcompositionwerenotsignificantlyaffectedbytreatrmntsp0.05)exceptcontentsofglutamic(Glu),ahnine(Ah),leucine(Leu)andmethionine(Me0(P<0.05)
7、amwerenotsignificantlybythetreatmentstoo(尸>O.05).Alltheconventsoftheaminoacidcompositionwerenotsignificantlyaffectedbytreatrmntsp0.05)exceptcontentsofglutamic(Glu),ahnine(Ah),leucine(Leu)andmethionine(Me0(P<0.05)
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