HENS EGGS WITH RETARDED GAS-EXCHANGE - CHORIOALLANTOIC CAPILLARY GROWTH

被引：25

作者：

METCALFE, J ^{[1
]}

BISSONNETTE, JM ^{[1
]}

BOWLES, RE ^{[1
]}

MATSUMOTO, JA ^{[1
]}

DUNHAM, SJ ^{[1
]}

机构：

[1] UNIV OREGON,HLTH SCI CTR,DEPT OBSTET & GYNECOL,PORTLAND,OR 97201

来源：

RESPIRATION PHYSIOLOGY | 1979年 / 36卷 / 02期

基金：

美国国家卫生研究院;

关键词：

Capillary growth; Egg respiration Chorioallantoic; Hypoxia;

D O I：

10.1016/0034-5687(79)90017-3

中图分类号：

Q4 [生理学];

学科分类号：

071003 ;

摘要：

The diffusing capacity of the hen's egg for carbon monoxide (DτCO) increases during incubation, reflecting the development of the chrioallantoic circulation. Previous work showed that the increase in DτCO could be diminished by incubating eggs in a 60% oxygen environment. The present work explored the effects of impeding gas exchange on the development of DτCO. Half the shell area was covered during incubation by a removable neoprene membrane which limited DτCO by approximately 20%. No difference could be detected between the DτCO values (measured with the membrane removed) of these eggs and control eggs in incubated in the same 21% oxygen environment without a neoprene membrane. We conclude that the development of the chorioallantoic circulation is at its maximum under normal conditions of incubation and cannot be accelerated by restricting gas exchange. © 1979.

引用

页码：97 / 101

页数：5