Abstract
Summary
Constant perfusion of a salts-glucose solution through the yolk sacs of 3-or 4-day chick embryos resulted in poor survival and abnormally pale eyes. Incubation in a 40% oxygen atmosphere in the presence of a yolk-supplemented medium permitted virtually normal pigmentation, and greatly enhanced survival. It is concluded that both yolk and oxygen must be present for normal development of retinal pigmentation.
Get full access to this article
View all access options for this article.