Regulation of sugar content in the blood during artificial hyperglycaemia in chick embryos]

Intravenous injections of glucose (8.6 mg/ml of blood) have been made 9-18 day chick embryos, 1-day chicks and adult hens. Glucose content of the blood was measured 15 and 30 min., 1,4 and 8 hours after the injection. It was shown that already 9-day embryos possess a regulatory system which restores the initial glycaemic level. During the development of the organism, the efficiency of this system increases. The data obtained may be used in theoretical studies on the sugar system of the blood.