抄録
1. The content of H2-donator (a sort of hexosephosphate) of the B-avitaminised fowls was found to be much reduced in compariGon with those under normal conditions or acute inanition by testing with the methy lenblue technique of Thunberg.
2. The candiolin-dehydrogenase activity of the heart muscle of vitamin-B deficient fowls was also reduced highly.
3. On vitamin-B deficient diet, the hypertrophy of suprarenal cortex accompanied with the accumulation of the coferment for candiolindehydrogenase was observed.
4. The application of vitamin-B preparation to the avita-minised fowls brought about a prompt restoration to the normal state in every respect of the above disturbances, unless the animal was too much exhausted.
5. The addition of suprarenal cortex to the vitamin-B deficient diet delayed the onset of avitaminose, which effect was not observed with other tissues, such as liver, kidney and brain.
The author is deeply indebted to Professor K. Kodama and to Professor R. Kaneko for their kind advice throughout this investigation.
