The study of the respiratory behavior of individual chicken embryos

Acta XVII Congressus internationalis ornithologici, Berlin, 5.-11.VI.1978 /

“…This paper discusses various aspects of how the respiratory requirement of the embryo, confined within an egg shell of limited surface area, can be satisfied througbout the period of incubation in spite of the very large increase in metabolism which occurs as a result of the growth of the embryo (Romijn & Lokhorst, 1960;Romanoff, 1941;Hoyt et ah, 1978).…”

Developmental Physiology

“…The oxygen con sumption of entire embryos and larvae of the salamanders Am blystoma punctatum and tigrinum (41), of Petromyzon (42), of chick embryos in the shell, and of differentiated tissues of chick embryos (43) were measured.…”

The relationship between oxygen consumption, body temperature and surface area in the hatching and young chick

“…It has been established that the metabolic rate of the chick rises dramatically at hatching (Lussana, 1906;Romanoff, 1941;Giaja and Jovancic, 1950;Visschedijk, 1962;Freeman, 1962) and continues to rise for about 10 days after hatching (Beattie and Freeman, 1962;Freeman, 1964a). At the same time there is an increase in the body temperature of the chick (Card, 1921;Lamoreux and Hutt, 1939;King, 1956;Hutt and Crawford, i960) although there is some disagreement as to the exact age at which the body temperature becomes constant.…”