資源描述：
《饑餓再投喂對(duì)條石鯛幼魚生長及消化酶的影響【畢業(yè)論文】》由會(huì)員上傳分享，免費(fèi)在線閱讀，更多相關(guān)內(nèi)容在學(xué)術(shù)論文-天天文庫。
1、本科畢業(yè)論文（20屆）饑餓再投喂對(duì)條石鯛幼魚生長及消化酶的影響專業(yè)：水產(chǎn)養(yǎng)殖學(xué)目錄中文摘要3英文摘要41.前言52.材料與方法62.1實(shí)驗(yàn)材料62.2實(shí)驗(yàn)條件62.3饑餓再投喂的實(shí)驗(yàn)設(shè)計(jì)62.4注意事項(xiàng)62.5參數(shù)計(jì)算公式和數(shù)據(jù)處理方法63.結(jié)果73.1饑餓再投喂對(duì)條石鯛幼魚生長的影響73.2饑餓再投喂對(duì)條石鯛幼魚消化酶的影響74.討論94.1饑餓再投喂對(duì)條石鯛幼魚生長的影響94.2饑餓再投喂對(duì)條石鯛幼魚消化酶活性的影響104.3條石鯛幼魚產(chǎn)生補(bǔ)償生長的機(jī)制115.小結(jié)11致謝12參考文獻(xiàn)13[
2、摘要]在水溫27～30℃，鹽度26～28條件下，對(duì)條石鯛幼魚進(jìn)行了不同時(shí)間的饑餓后再恢復(fù)投喂生長的實(shí)驗(yàn)。設(shè)對(duì)照組S0持續(xù)正常投喂30d,饑餓組S3、S6、S9和S12分別饑餓3d、6d、9d和12d后再分別恢復(fù)正常投喂27d、24d、21d和18d。結(jié)果表明：饑餓對(duì)條石鯛幼魚生長及消化酶活力均具有顯著影響，饑餓組在恢復(fù)投喂后，體重迅速增重且S3的體重超過了S0,但兩者體重差異不顯著(P>0.05),而其他各饑餓組的體重均顯著低于S0和S3組（P<0.05）。條石鯛幼魚在恢復(fù)投喂后，除S3組體質(zhì)量
3、與特定生長率與對(duì)照組無明顯差異外，其它各處理組均明顯低于對(duì)照組。條石鯛幼魚體質(zhì)量、蛋白酶(胃蛋白酶、胰蛋白酶)與脂肪酶活力隨著饑餓時(shí)間的延長均呈現(xiàn)明顯的降低趨勢，體質(zhì)量與蛋白酶活力在饑餓6d后與對(duì)照組表現(xiàn)出顯著性差異，脂肪酶活力在饑餓9d后才與對(duì)照組表現(xiàn)出顯著性差異，而淀粉酶活力在饑餓過程中呈波動(dòng)性變化?；謴?fù)投喂后，主要消化酶活力在恢復(fù)投喂后均有明顯回升，且蛋白酶活力與對(duì)照組相比已無顯著性差異，但較長時(shí)間的饑餓處理(9-12d)并未使脂肪酶活力恢復(fù)至對(duì)照組水平。比較分析認(rèn)為S3為完全補(bǔ)償生長，S
4、6為部分補(bǔ)償生長。[關(guān)鍵詞]條石鯛幼魚饑餓補(bǔ)償生長消化酶EffectsofStarvationandRefeedingOnTheGrowthAndDigestiveEnzymeActivityOfOplegnathusFascltus[Abstract]Thepresentpaperdealswiththeresearchinregardtotheeffectsofstarvationandcompensatorygrowthonfeedingandgrowthofjuvenilegrouper
5、juvenilegrouperOplegnathusfascltus.Theexperimentlastedfor30daysatsalinityof26-28andtemperatureof27-30℃.GroupS0wasthecontrol,S3,S6,S9andS12werestarvedfor3,6,9and12days,respectively.Theneachgroupwasre-fedinthesubsequentdays.Theresultsshowedthatithassig
6、nificanteffectofstarvationonthegrowth,ondigestiveenzymeactivityofrockbreamOplegnathusfasciatus.thestarvationgroupsgrewfastafterre-feeding,thefishrefedafterdifferentperiodsofstarvationhadsignificantlowerthanthecontrolgroupinthebodyweightandSGRexceptS3
7、.theweightoftheS3andS0groupswereheavierthanthatoftheothergroups,andmoreoverthedifferencewassignificant.Asthestarvationtimeextend,theweight,theproteinaseactivity(pepsinandtrypsin)andlipaseactivitygraduallydecreasedobviously.Therewassignificantdifferen
8、cecomparedbodyweightwiththecontrolgroupandcomparedthepepsinactivitywiththecontrolgroupafterstarvedforsixdays.Therewassignificantdifferencecomparedlipaseactivitywiththecontrolgroupafterstarvedforninedays.Theamylaseactivityinthewholeexperimentwasfluctu
