Estudos sôbre a coloração da gema de ôvo de galinhas - IV. Efeito da raça e da quantidade de milho amarelo na ração

Abstract

This paper deals with experiments on the yolk color of chicken eggs. The results obtained can be summarized as follows: a) no differences were observed when different breeds (S. C. W. Leghorn and Rhode Island Red) were fed whith the same ration: yellow corn grains or green feed. b) 30% of yellow corn grain (orange or yellow) in the ration are sufficient to give satisfactory color to the yolk eggs.