Abstract
Summary
Mature hens were given a single whole body X-irradiation of 300 roentgens. This treatment markedly reduced the bone marrow endogenous respiration, choline oxidase, and succinoxidase. The intraperitoneal injection of urethane also reduced marrow choline oxidase, and reduced succinoxidase but to a lesser degree. Both X-irradiation and urethane treatment rendered the chickens leucopenic.
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