Effect of crowding stress on the immune response in turbot (Scophthalmus maximus) vaccinated with attenuated Edwardsiella tarda
文献类型: 外文期刊
作者: Huo, Huanhuan 1 ; Yin, Shuting 2 ; Jia, Rui 1 ; Huang, Bin 2 ; Lei, Jilin 1 ; Liu, Baoliang 1 ;
作者机构: 1.Nanjing Agr Univ, Wuxi Fisheries Coll, Wuxi 214128, Peoples R China
2.Chinese Acad Fishery Sci, Yellow Sea Fisheries Res Inst, Minist Agr, Key Lab Sustainable Dev Marine Fisheries, Qingdao 266071, Peoples R China
3.Chinese Acad Fishery Sci, Ye
关键词: Crowding stress;Attenuated Edwardsiella tarda;Scophthalmus maximus
期刊名称:FISH & SHELLFISH IMMUNOLOGY ( 影响因子:4.581; 五年影响因子:4.851 )
ISSN:
年卷期:
页码:
收录情况: SCI
摘要: The aim of this study was to evaluate the immune responses in turbot, Scophthalmus maximus, treated with 1 x 10(7) cfu/ml attenuated Edwardsiella tarda (0.1 ml/fish) under low density (LD; similar to 5.25-5.13 kg/m(2), initial to final density), medium density (MD; similar to 10.41-13.95 kg/m(2)), and high density (HD; similar to 20.53-30.77 kg/m(2)) conditions for 8 weeks. The results showed that there was a peak value in the percentage of sIg+ (surface immunoglobulin-positive) cells in blood leucocytes (BL), spleen leucocytes (SL), and pronephros leucocytes (PL) during the sixth week in the HD, which was delayed by week compared with the other groups. The specific immunoglobulin M (IgM) antibody levels increased from the first week in all groups and reached a peak in the fifth week in the LD and MD groups, but in the sixth week in the HD group. The serum cortisol levels were greater in the HD group compared with the other groups in the last 3 or 4 weeks. These results show that stocking turbot at a LD obtained the most effective immunization, and thus we conclude that crowding stress may reduce the ability to deal with immune challenge. (C) 2017 Elsevier Ltd. All rights reserved.
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