Metabolism of carotenoid pigments and vitamin A by swine. Provitamin A from alfalfa and yellow corn, and vitamin A in a gelatin-stabilized product as sources of vitamin A for weanling pigs.

Abstract

Twenty-seven weanling pigs from gilts fed a vitamin A-restricted diet during gestation and lactation were distributed into three groups of three lots each so that lots among groups were balanced on the basis of litter, sex and weight. Gilts and. weanling pigs were in good condition at the time of weaning, but vitamin A reserves were low.