高溶氧环境中添加大蒜素对日本对虾仔虾生理指标的影响

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中图分类号：S968.2 文献标志码：A 文章编号：1004—6755（2026）04-0005—04

Effects of allicin supplementation on physiological indicators of Penaeus japonicus post-larvae in high dissolved oxygen environments

YANG Tong1²，GUO Jiadong1²，LI Yiying1.³，REN Tongjun1.2 1.（College ofFisheries andLife Science，Dalian Ocean University，Dalian116o23，China; 2.DalianKeyLaboratoryofShrimpandCrabBredingandHealthyAquaculture，DalianOceanUniversity，Dalianl16O23，China; 3.Key Laboratoryof Appied Biologyand aquacultureoffish in northern Liaoning Province，Dalianl16o23，China）

Abstract：To investigate the effects of alicin on the physiology of Penaeus japonicus post-larval under high dissolved oxygen conditions，a 42-day feeding trial was conducted in an aquatic environment with a dissolved oxygen concentration of 13.6mg/L . The Penaeus japonicus post-larvae were fed basal diets supplemented with 0% （control group）， 0.2% ， 0.4% ，and 0.6% allicin. The results showed that， compared with the control group，appropriate allicin supplementation significantly increased the weight gain rate，specific growth rate，and survival rate of the post-larvae （ ⋅P<0. 05 ）， with the 0.4% group achieving the highest values. Regarding antioxidant and immune indicators， the activities of superoxide dismutase，catalase，phosphatase，alkaline phosphatase，and lysozyme in all allicin一supplemented groups were significantly higher than those in the control group，while the malondialdehyde content was significantly reduced （ P<0.05 ）. These indicators reached optimal levels in the 0.4% group but were inhibited to some extent in the 0.6% group. In conclusion，allicin significantly promotes the growth and enhances the antioxidant and immune functions of Penaeus japonicus post-larval in a high dissolved oxygen environment，with 0.4% being the optimal supplemental level.

Key words：Penaeus japonicus；allicin；antioxidant；immunity

日本对虾（Penaeusjaponicus）是中国重要的经济养殖品种[1]，但高密度养殖模式存在生长缓慢、成活率低等问题，严重制约了养殖产业的发展，因此，亟须优化养殖技术[2。（剩余5842字）