title: The Apparent Antagonism Between Vitamin A and Carotenoids in the Fowl.
abstract: These experiments show that the pigmentation-suppressing factor in fish-liver oils is vitamin A. Carotene fed at comparable levels does not exert a suppressing effect on pigmentation. Inhibition of pigmentation takes place when there is a sufficiently large bodily store of vitamin A; it is not exclusively an intestinal phenomenon.
authors.forename: M
authors.initials: M
authors.lastname: Rubin
authors.forename: H R
authors.initials: HR
authors.lastname: Bird