抄録
Attempts have been made to compare arginase activity of the white and the red muscle of various kinds of fishes, by means of xanthydrol or urease method.
Results were following:
(1) The white muscle of the fishes contained no arginase or very small in quantities, if any. On the other hand, in the superficial red muscle of fishes, arginase was found to be present.
(2) However, in some kinds of the scombroid fish, such as tunny, there are two kinds of red muscle, one is “superficial” and the other is “deep seated”. (see Fig. 1.) The superficial red muscle of these kinds of fish did not contain arginase like the white muscle, or if any, very small amount, while the deep seated red muscle contained it definitely.
