赤血球などの量的変動による魚類生理状態の判定-I

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An attempt is made in the present paper to settle a technique estimating environmental and physiological conditions of fish by means of values on some blood characters of them. The differences between the bloods sampled firstly and secondly from the intact carps were determined as a standard in the values of hematocrit, erythrocyte count, erythrocyte resistance and oxygen consumption. Then, the differences between the bloods sampled before and after some treatments were compared with the standard obtained above. The treatments tried were as follows: (group 1) the injection of 0.2 cc of mercurous chloride solution (0.2-0.4 ppm) into the lateral muscle; (group 2) keeping in the same solution (0.2 ppm) for ten days; (group 3) keeping in the natrium chloride solution (1%) for one or two days. It was ascertained that the injection of the mercurous chloride solution resulted the increase of both hematocrit value and erythrocyte count, while the rearing in the same solution were followed by the marked decrease of oxygen consumption. By the treatment in the natrium chloride solution, it was found out that the erythrocyte count and the erythrocyte resistance both increased remarkably.
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