大连海洋大学学报 2016, Vol. 31 Issue (5): 533-537 DOI: 10.16535/j.cnki.dlhyxb.2016.05.011 |
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盐度对长江刀鲚幼鱼非特异性免疫酶和消化酶活力的影响 |
邓平平,施永海,汪洋,徐嘉波,谢永德,刘永士,税春 |
上海市水产研究所,上海200433 |
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Effectsofsalinityonactivitiesofnon-specificimmuneanddigestive enzymesinjuvenileestuarinetapertailanchovyCoilianasus |
DENGPing-ping,SHIYong-hai,WANGYang,XUJia-bo,XIEYong-de,LIUYong-shi,SHUIChun |
ShanghaiFisheriesResearchInstitute,Shanghai200433,China |
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摘要 以人工繁育的长江刀鲚Coilia nasus幼鱼(体质量为2.12 g±0.88 g)为对象,研究了盐度对其肝脏非特异性免疫酶和胃、肠、盲囊消化酶活力的影响。试验设6个盐度(3、6、9、12、15、18)处理组,每组设3个平行,每个平行放养50尾鱼,试验共进行55 d。结果表明:盐度为15时,长江刀鲚幼鱼肝脏酸性磷酸酶(ACP)和碱性磷酸酶(AKP)活力均处于最低值,分别为104.77、60.72 U/g,盐度为18时,肝脏ACP活力显著高于其他盐度组(P<0.05);超氧化物歧化酶(SOD)和过氧化氢酶(CAT)活力随盐度变化的趋势相同,与谷胱甘肽过氧化物酶(GSH-PX)活力变化趋势相反,盐度对肝脏CAT活力无显著性影响(P>0.05);相同盐度下,肠淀粉酶(AMS)、脂肪酶(LPS)、蛋白酶(胃蛋白酶PPS、胰蛋白酶TPS)活力比胃和盲囊高,胃LPS活力明显低于盲囊和肠;盐度为9时盲囊LPS活力以及盐度为15时肠TPS活力出现最大值;相同盐度下,不同消化组织AMS活力总体上为肠>盲囊>胃,盐度为12时,各消化组织AMS活力处于较低水平,盐度为15时,各消化组织AMS活力整体处于相对较高水平。根据盐度对不同组织不同酶活力的影响规律,得出适宜长江刀鲚生存的盐度为12~15。
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关键词:
长江刀鲚
盐度
非特异性免疫酶
消化酶
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Abstract: Anexperimentwasconductedtoinvestigateeffectsofvarioussalinitiesonactivitiesofnon-specificimmuneanddigestiveenzymesinliver,stomach,intestineandcaecumofjuvenileestuarinetapertailanchovyCoilia nasus(bodyweight2.12g±0.88g).Juvenileestuarinetapertailanchovywithbodyweightof(2.12±0.88)gwas rearedina1ttankatarateof50fishatasalinityof3,6,9,12,15and18for55dayswithtriplication.Results showedthatthereweretheminimalactivitiesofacidphosphatase(ACP)(104.77U/g)andalkalinephosphatase(AKP)(60.72U/g)inliverofthefishatasalinityof15,significantlyhigherACPactivityinliveratasalinityof 18thanatothersalinities(P<0.05).Thesametrendwasobservedinthechangesinactivitiesofsuperoxidedismutase(SOD)andcatalase(CAT)asthesalinitywaselevated,whiletheoppositecasewasfoundinactivityof glutathioneperoxidase(GSH-PX),withoutsignificantdifferenceinCATactivity.Therewerehigheractivitiesof amylase(AMS),lipase(LPS)andtrypsin(TPS)inintestinethaninstomachandcaecum,significantlylowerLPS activityinstomachthaninintestineandcaecum,withthemaximalactivitiesofLPSincaecumandofTPSinintestineatasalinityof9(P<0.05).Atthesamesalinity,theorderofamylaseactivitywasrangedindescendingorder asintestine>caecum>stomach,andtherelativelyloweramylaseactivitiesindifferentdigestiveorganswereobserved atasalinityof12andhigheratasalinityof15,indicatingthat12-15isoftheoptimalsalinityforjuvenileestuarinetapertailanchovy. |
Key words:
Coilianasus
salinity
non-specificimmuneenzyme
digestiveenzyme
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发布日期: 2016-12-30
期的出版日期: 2016-10-21
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引用本文: |
邓平平, 施永海, 汪洋, 徐嘉波, 谢永德, 刘永士, 税春. 盐度对长江刀鲚幼鱼非特异性免疫酶和消化酶活力的影响[J]. 大连海洋大学学报, 2016, 31(5): 533-537.
DENGPing-ping, SHIYong-hai, WANGYang, XUJia-bo, XIEYong-de, LIUYong-shi, SHUIChun. Effectsofsalinityonactivitiesofnon-specificimmuneanddigestive enzymesinjuvenileestuarinetapertailanchovyCoilianasus. Journal of Dalian Ocean University, 2016, 31(5): 533-537.
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https://xuebao.dlou.edu.cn/CN/10.16535/j.cnki.dlhyxb.2016.05.011
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https://xuebao.dlou.edu.cn/CN/Y2016/V31/I5/533 |
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