饥饿对养殖鲈鱼血液生理生化指标的影响

设定不同饥饿时间研究养殖鲈鱼（Lateolabrax japonicus)血液生理和生化指标的变化，实验进行4周，每周取样，结果表明，血液中红细胞数，血红蛋白和红细胞比容分别在饥饿2周，2周和4周开始显著下降，而红细胞脆性和沉降率则分别在饥饿1周和3周显著上升，血糖浓度在饥饿第1周显著下降，以后几周则较为恒定，总蛋白，白蛋白和球蛋白在饥饿1周和2周时均有上升，3周后开始下降，甘油三脂和总胆固醇均在饥饿3周开始显著下降；Na^ 和Cl^-浓度在饥饿3周显著上升，谷丙转氨酶和谷草转氨酶活力分别在饥饿2周和1周时显著下降，饥饿对K^ ,Ca^2 浓度和碱性磷酸酶活力没有影响，各项生理生化指标和饥饿时间的回归分析表明，均以3次多项式的R2值为最大，其中又以白蛋白和血红蛋白的R2值最大，分别为0．922和0．902，建议血红蛋白含量可作为鲈鱼饥饿评价的指标。

Effects of starvation on hematological and blood biochemical indices in cultured Lateolabrax japonicus

Different starvation periods were set to examine the variation of hematological and blood biochemical indices in cultured Lateolabrax japonicus. The blood was sampled at days 0,7,14,21 and 28 of a 28 day starvation period. The results show that the numbers of red cells,the hemoglobin content and the haematocrit of L. japonicus decrease after starvation of two weeks,two weeks and four weeks, respectively,while the erythrocyte osmotic brittleness and the erythrocyte sedimentation rate increase after one and three weeks starvation,respectively. The serum glucose levels decrease sharply during the first week and then keep stable. The concentrations of total protein,albumin and globin increase a little during the first two weeks of starvation,and decrease after three weeks starvation. The contents of triglyceride cholesterol and the activities of ALT and AST decrease with the starvation time going by,while the concentrations of Na + and Cl - increase. No differences are detected among the groups in K + and Ca 2+ concentrations and AKP activity. Regressions are developed to simulate the relationship between starvation time and each parameters that the highest coefficients of determination for all parameters are on cube regression equation, among which the coefficients of determination of albumin and hemoglobin are the highest,0.922 and 0.902, respectively. The hemoglobin content may be starvation indices for assessment of L. japonicus for their easy detection.