发酵制备腺苷甲硫氨酸及其对凡纳滨对虾的应激保护的中期报告摘要：本研究旨在发酵制备腺苷甲硫氨酸及探究其对凡纳滨对虾的应激保护作用。通过优化发酵条件，获得了较高产量的腺苷甲硫氨酸发酵液，并将其应用于凡纳滨对虾的应激实验中。结果发现，添加腺苷甲硫氨酸后，凡纳滨对虾在低温、高盐、低氧等应激环境下的存活率明显提高。同时，腺苷甲硫氨酸还能够降低凡纳滨对虾肝脏中丙二醛和谷胱甘肽的含量，表明其具有一定的抗氧化作用。综上所述，腺苷甲硫氨酸可以作为一种有效的应激保护剂，用于凡纳滨对虾的养殖中。关键词：发酵；腺苷甲硫氨酸；凡纳滨对虾；应激保护Abstract：TheaimofthisstudywastoprepareadenosylmethioninebyfermentationandexploreitsstressprotectioneffectonFenneropenaeuschinensis.Throughoptimizingthefermentationconditions,ahigh-yieldingadenosylmethioninefermentationbrothwasobtainedandappliedinthestressexperimentofF.chinensis.Resultsshowedthatafteraddingadenosylmethionine,thesurvivalrateofF.chinensisunderstressenvironmentssuchaslowtemperature,highsalinityandlowoxygenweresignificantlyimproved.Meanwhile,adenosylmethioninecouldalsoreducethecontentofmalondialdehydeandglutathioneintheliverofF.chinensis,indicatingitsantioxidanteffect.Inconclusion,adenosylmethioninecanbeusedasaneffectivestressprotectantinthecultureofF.chinensis.Keywords:fermentation;adenosylmethionine;Fenneropenaeuschinensis;stressprotection.