文章摘要
不同光照周期对日本囊对虾(Marsupenaeus japonicas)生长、蜕皮和糖代谢的影响*
Effects of Different Photoperiod on Growth, Molting and Glucose Metabolism of Japanese prawn (Marsupenaeus japonicas)
投稿时间:2019-09-02  修订日期:2019-09-24
DOI:
中文关键词: 日本囊对虾  光照周期  生长  蜕皮  糖代谢
英文关键词: Marsupenaeus japonicas  Photoperiod  Growth  Molting  Glucose metabolism
基金项目:农业农村部农业国际合作交流项目-“一带一路”热带国家水产养殖科技创新合作、国家虾蟹产业技术体系、山东省泰山产业领军人才工程项目
作者单位E-mail
王想 海水养殖教育部重点实验室 中国海洋大学 青岛 21170511033@stu.ouc.edu.cn 
任宪云 农业部海洋渔业可持续发展重点实验室 中国水产科学研究院黄海水产研究所 青岛  
绳秀珍 海水养殖教育部重点实验室 中国海洋大学 青岛  
李翠苹 上海海洋大学水产与生命学院 上海  
李健 农业部海洋渔业可持续发展重点实验室 中国水产科学研究院黄海水产研究所 青岛 lijian@ysfri.ac.cn 
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中文摘要:
      本研究比较分析了不同光照周期(D、10L:14D、14L:10D、L)对日本囊对虾(Marsupenaeus japonicas)生长、蜕皮和糖代谢的影响。结果显示,不同光照周期对日本囊对虾生长、蜕皮和糖代谢有显著性影响。随着光照时间的延长,对虾的存活率(S)、特定生长率(SGR)和蜕皮率(MF)逐渐降低,到第49天时,L组对虾死亡率达100%,实验结束时,D组S、SGR和MF显著高于10L:14D组和14L:10D组(P<0.05),分别为(60.000±2.722)%、(6.966±0.686) %/d和(4.667±0.363)%/d,但10L:14D组和14L:10D组间的S、SGR和MF差异不显著。不同光照周期显著影响日本囊对虾体内蜕皮抑制激素(MIH)和蜕皮激素(EH)浓度。第30天时,D组MIH浓度显著低于10L:14D组、14L:10D组和L组(P<0.05),10L:14D组和14L:10D组MIH浓度显著低于L组(P<0.05),10L:14D组和14L:10D组间差异不显著;第60天时,D组MIH浓度显著低于10L:14D组和14L:10D组(P<0.05),但这2组间差异不显著;随着光照时间的延长,对虾体内EH浓度不断降低,第30天时,D组EH浓度显著高于10L:14D组、14L:10D组和L组(P<0.05),10L:14D组、14L:10D组和L组间差异不显著;第60天时,D组EH浓度显著高于10L:14D组和14L:10D组(P<0.05),但这2组间差异不显著。不同光照周期显著影响对虾的糖代谢,不同处理组血清中的5-羟色胺(5-HT)、高血糖激素(CHH)和肝脏中的糖原磷酸化酶(GP)的变化趋势与上述MIH浓度变化趋势一致,而肝脏中糖原合酶(GS)的变化趋势恰好与MIH浓度变化趋势相反。由上可知,日本囊对虾最适宜生长的环境为全黑暗状态。
英文摘要:
      This study compared the effects of different photoperiods (D, 10L:14D, 14L:10D, L) on the growth, molting and glucose metabolism of Japanese prawn (Marsupenaeus japonicas). The results showed that different photoperiods had significant effects on the growth, molting and glucose metabolism of M. japonicas. With the extension of illumination time, the survival rate (S), specific growth rate (SGR) and molting rate (MF) of shrimp decreased gradually. By the 49th day, the mortality of shrimp in group L reached 100%. At the end of the experiment, S, SGR and MF of group D were significantly higher than 10L: 14D group and 14L: 10D group (P<0.05), which were (60.000±2.722)%, (6.966±0.686)%/d and (4.667±0.363)%/d, respectively. However, the differences in S, SGR and MF between the 10L:14D group and the 14L:10D group were not significant. Different photoperiods significantly affected the concentration of molting inhibitory hormone (MIH) and ecdysone hormone (EH) in Japanese prawn. On the 30th day, the concentration of MIH in group D was significantly lower than 10L: 14D group, 14L: 10D group and group L (P<0.05), and the MIH concentration in 10L:14D group and 14L:10D group was significantly lower than that in group L (P<0.05), 10L: 14D group and 14L: 10D group difference was not significant; on the 60th day , MIH concentration of group D was significantly lower than 10L: 14D group and 14L: 10D group (P <0.05), but the difference between the two groups was not significant; The EH concentration in the shrimp decreased continuously with the extension of the illumination time. On the 30th day, the EH concentration in the group D was significantly higher than 10L: 14D group, 14L: 10D group and group L (P<0.05), there were no significant differences between the 3 groups. On the 60th day, the EH concentration in the group D was significantly higher than that in the 10L : 14D group and 14L : 10D group (P<0.05), but the difference between the two groups was not significant. Different photoperiods significantly affected the glucose metabolism of shrimp, and the changes of serotonin (5-HT), crustacean hyperglycemic hormone (CHH) and glycogen phosphorylase (GP) in the hepatopancrea of different treatment groups showed the same trend as the above MIH concentration, while the trend of glutamine synthetase (GS) in the hepatopancrea was exactly the opposite. It can be seen from the above that the environment in which the Japanese prawn is most suitable for growth is in a dark state.
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