[Mechanism of malate dehydrogenase isoform formation in Sphaerotilus natans D-507 under different cultivation conditions].

Electrophoretically homogenous preparations of malate dehydrogenase (MDH) isoforms of the bacteria Sphaerotilus natans D-507 with specific activity 7.46 U/mg and 5.74 U/mg with respect to protein concentration have been obtained.

[Method of determing the body surface of rabbits].

Body surface determination in rabbits is essential for carrying out biological experiments with these animals in burn shock, and in hemorrhagic, endotoxic and other types of shock as well. In the experiments described a nomogram is suggested after processing data from the measurement of a variety of body parts in 100 unbred rabbits, enabling polynominal regression analysis on the basis of which a nomogram is worked out. The nomogram outlines the dependence of body surface in case of known body weight of the rabbit.