Abstract
Apparatus has been devised for the determination of the gas exchange and permeation of fertile duck eggs. The oxygen uptake of fertile eggs was measured continuously, and lead the condition of the embryos whether they were dead or alive during incubation. The apparatus for the determination of gas permeation simultaneously determine oxygen, water and carbon dioxide which permeate through the eggshell. By the record of the oxygen consumption for the fertile eggs, the development of the embryos in the course of incubation could be traced. Relations between the gas permeation of the fertile eggs and the growth of the eggshells was also revealed in connection with the oxygen demand.
