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1、多不饱和脂肪酸结构对生长期扬州鹅血液生化指标的影响摘要本研究旨在初步探讨不同比例ω-6、ω-3PUFA对扬州鹅血糖和血脂的影响。试验选择160只同一批出雏、体质健壮、体重接近的3周龄扬州鹅,随机分成四组。分别饲喂ω-6/ω-3PUFA的比例为3:1,6:1,9:1,12:1的日粮,在42日龄、56日龄、70日龄时分别进行血清生化指标测定并进行数据分析,试验结果表明:ω-3/ω-6PUFA比例为6:1组有较低的TG、TC、和LDL量,而该组HDL在4组中最高。另外,还发现扬州鹅的血糖水平随ω-6/ω-3PUFA比例的增加而增加,以
2、3:1组最低,并在56、70日龄时显著低于其他3组(p<0.05)。因此,在本研究的基础上认为,ω-6/ω-3PUFA比例对扬州鹅的血脂代谢有一定的影响,其比例为6:1时有较好的降低血脂的效应。另外,ω-3PUFA对42日龄后扬州鹅有较好的降的血糖作用。关键词:ω-6/ω-3PUFA比例;扬州鹅;血脂;血糖TheeffectsofDifferentω-6/ω-3PUFAonBloodbiochemicalindexesinYangzhouGooseAbstract:[objective]Theobjectiveofthisres
3、earchwastoinvestigatetheeffectsofdifferentω-6/ω-3PUFAonbloodbiochemicalindexesinyangzhougoose.[method]Atotalof160healthyYangzhougeese(similarweight),aged3weeks,wererandomlydividedinto4groups.Theywerefedondietswithdifferentω-6/ω-3PUFAratios(linoleicacid(ω-6)tolinoleni
4、cacid(ω-3)ratiowas3:1,61:,9:1,and12:1respectively),and50-dayfeedtrailwasconductedintheexperimentalfarmofYangzhouUniversity,Yangzhou.Thebloodsamplewasobtained,andthebiochemicalindexesweredeterminedat42-day-old,56-day-old,and70-day-oldrespectively.[result]Theresultssho
5、wthat,thedietcontaining6:1ω-6/ω-3PUFAratioshowedmuchlowerTG,TC,LDL,andhighestHDLamongst4groups.Itwasfurtherobservedthat,BGlevelofYangzhougooseincreasedwithω-6/ω-3PUFAratioincreasing,lowestinthegroupcontaining3:1ω-6/ω-3PUFAratio.Additionally,BGof3:1groupwaslowerthanth
6、atofothergroupssignificantly(p<0.05)at56-day-old,and70-day-old.[conclusion]Inconclusion,ω-6/ω-3PUFAhadapropereffectonbloodlipid,and6:1showingmuchbetter;ω-3PUFAcoulddecreaseBGofYangzhougooseafter42-day-old.19Keywords:ω-6/ω-3PUFAratio;Yangzhougoose;Bloodlipid;Bloodgluc
7、ose目录文献综述………………………………………………………………………………………………………………….31多不饱和脂肪酸的组成及来源……………………………………………………………………………………………………41.1PUPA的组成…………………………………………………………………………………………………………………………41.2PUPA的来源…………………………………………………………………………………………………………………………41.2.1动植物来源………………………………………………………………………………………………
8、…………………………41.2.2其他来源…………………………………………………………………………………………………………………………51.3PUFA的分离提取方法………………………………………………………………………………………………51.4PUFA的分析方法…