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水温与草鱼免疫应答关系的研究 总被引:16,自引:0,他引:16
通过在不同水温条件下,用CFRV疫苗免疫后的草鱼血清中和抗体效价和免疫保护力的变化探讨水温与草鱼免疫应答的关系。结果表明:(1)水温在10℃以下,草鱼的免疫应答受到抑制,它对CFRV疫苗的免疫临界温度是10℃;(2)在免疫临界温度之上,草鱼的免疫应答随温度的升高而增强,超过草鱼的适宜生长温度(32℃以上),其应答反应反而有下降的趋势;(3)免疫诱导期的水温是决定草鱼免疫应答发生与否和免疫应答强弱的 相似文献
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An Improved Artificial Immune Algorithm with a Dynamic Threshold 总被引:2,自引:0,他引:2
Zhang Qiao Xu Xu Liang Yan-chun 《仿生工程学报(英文版)》2006,3(2):93-97
An improved artificial immune algorithm with a dynamic threshold is presented. The calculation for the affinity function in the real-valued coding artificial immune algorithm is modified through considering the antibody's fitness and setting the dynamic threshold value. Numerical experiments show that compared with the genetic algorithm and the originally real-valued coding artificial immune algorithm, the improved algorithm possesses high speed of convergence and good performance for preventing premature convergence. 相似文献
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