几种养殖鱼类越冬生理生化指标的变化Ⅲ──血清蛋白组分

Changes on Physiological and Biochemical Index for Chinese Carps in Winter Ⅲ-Serum Protein Composition

应用薄膜电泳扫描法对鲢、鳙、草鱼、鲤（杂交鲤、镜鲤）在北方越冬期间血清蛋白含量及成分进行分析比较。研究结果表明，（１）在越冬过程中５种鱼血清白蛋白含量随水温下降而减少，减少的百分率依次为杂交鲤（４８．８％）＞草鱼（４１．２％））镜鲤（４０．８％）＞鳙（３３．８％）＞鲢（３１．５％）；越冬各期草鱼、鲢、镜鲤的γ－球蛋白数值变化不明显，杂交鲤、鳙的血清γ－球蛋白在越冬中期下降，下降幅度为杂交鲤（２１％）＞鳙（１６．８％）．（２）越冬过程中患竖鳞病杂交鲤与正常杂交鲤相比，白蛋白、球蛋白１、球蛋白２明显减少，γ－球蛋白明显升高。

This paper deals with a comparison for the serum protein content and composition of silver carp,bighead carp , grass carp, hybrid carp and mirror carp during wintering in the northern China by the electrophoresis scaning technique of cellulose acetate membrane. The results show that :(1)the serum albumin contents of the five fishes are decreased as a result of a fall in temperature in wintering period. And the decreased percentage are hybrid carp(48%)>grass carp(41.2%)>mirror carp(40.8%)>bighead carp (33.0%)>sliver carp(31.5%).The changes of serum globulin contents in hybrid carp ,bighead carp are obviouse and the decrerse rate are hybrid carp (21%)>bighead carp(16.8%).(2)the contents of serum albumin, serum globulin-1 and globulin-2 in hybrid carp infected with lepid or thosis disease reduce significantly,and the contents of serum γ-globulin increaseconsiderably in comparison with that in the nomal one。