HOU Ya-yi, HAN Xiao-dong. IMMUNOGLOBULIN M(IgM)SECRETIONS SUPPRESSED BY INTRAPERITONEAL INJECTION OF TESTOSTERONE IN IMMATURE RAINBOW TROUT, ONCORHYNCHUS MYKISS[J]. ACTA HYDROBIOLOGICA SINICA, 2001, 25(6): 577-582.
Citation: HOU Ya-yi, HAN Xiao-dong. IMMUNOGLOBULIN M(IgM)SECRETIONS SUPPRESSED BY INTRAPERITONEAL INJECTION OF TESTOSTERONE IN IMMATURE RAINBOW TROUT, ONCORHYNCHUS MYKISS[J]. ACTA HYDROBIOLOGICA SINICA, 2001, 25(6): 577-582.
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IMMUNOGLOBULIN M(IgM)SECRETIONS SUPPRESSED BY INTRAPERITONEAL INJECTION OF TESTOSTERONE IN IMMATURE RAINBOW TROUT, ONCORHYNCHUS MYKISS

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  • The aim of this study was to determine the effect of testosterone(T)on immune activities of lymphocytes in rainbow trout, Oncorhynchus mykiss. Plasma IgM level deceased, when plasma T level was elevated by in vivo treatment of T. Moreover, the number of antibody-producing cells and the amount of 1gM in the culture media also deceased in a dosage-dependent manner in rivo under different concentrations of T. It is revealed that T can suppress lymphocyte activities, at least the secretion of 1gM from B lymphocytes, suggesting that rainbow trout susceptibility to infectious diseases is closely related to the elevation of T level during spawning season.
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