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首页> 外文期刊>The Journal of Experimental Biology >The blood volumes of the primary and secondary circulatory system in the Atlantic cod Gadus morhua L., using plasma bound Evans Blue and compartmental analysis
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The blood volumes of the primary and secondary circulatory system in the Atlantic cod Gadus morhua L., using plasma bound Evans Blue and compartmental analysis

机译：血浆鳕鱼伊文思蓝和区室分析法测定大西洋鳕鱼Gadus morhua L.的一次和二次循环系统的血容量

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摘要

The volume of the primary (PCS) and secondary (SCS) circulatory system in the Atlantic cod Gadus morhua was determined using a modified dye dilution technique. Cod (N=10) were chronically cannulated in the second afferent branchial artery with PE-50 tubing. Evans Blue dye was bound to harvested fish plasma at a concentration of 1 mg dye ml(-1) plasma, and injected at a concentration of 1 mg kg(-1) body mass. Serial sampling from the cannula produced a dye dilution curve, which could be described by a double exponential decay equation. Curve analysis enabled the calculation of the primary circulatory and total distribution volume. The difference between these volumes is assumed to be the volume of the SCS. From the dilution curve, it was also possible to calculate flow rates between and within the systems. The results of these experiments suggest a plasma volume in the PCS of 3.42+/-0.89 ml 100 g(-1) body mass, and in the SCS of 1.68+/-0.35 ml 100 g(-1) body mass (mean +/- S.D.) or approximately 50% that of the PCS. Flow rates to the SCS were calculated as 2.7% of the resting cardiac output. There was an allometric relationship between body mass and blood volumes. Increasing condition factor showed a tendency towards smaller blood volumes of the PCS, expressed as percentage body mass, but this was not evident for the volume of the SCS.
机译：使用改良的染料稀释技术确定了大西洋鳕鱼Gadus morhua中主要（PCS）和次要（SCS）循环系统的体积。用PE-50管在第二条传入支动脉中长期插管Cod（N = 10）。伊文思蓝染料以1 mg染料ml（-1）血浆的浓度与收获的鱼血浆结合，并以1 mg kg（-1）体重的浓度注射。从套管的连续采样产生了染料稀释曲线，可以用双指数衰减方程来描述。曲线分析可以计算一次循环量和总分配量。这些体积之间的差异假定为SCS的体积。根据稀释曲线，还可以计算系统之间和系统内部的流速。这些实验的结果表明，PCS的血浆体积为3.42 +/- 0.89 ml 100 g（-1）体重，SCS的血浆体积为1.68 +/- 0.35 ml 100 g（-1）体重（平均值+ /-SD）或PCS的大约50％。计算出的SCS流量为静息心输出量的2.7％。体重和血容量之间存在异速关系。条件因子的增加表明PCS的血容量趋于减小，以体重百分比表示，但这对于SCS的容量并不明显。

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