The supplementary effect of adding canthaxanthin to a diet containing natural sources of pigmenting compounds on the pigmentation of broilers

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Abstract
Two experiments have been carried out involving 4200 broiler‐type chicks maintained on litter with six basal diets in the first study and six in the second. From the data of these studies, it can be concluded that canthaxanthin can be used effectively to augment or supplement naturally occurring xanthophylls found in yellow corn or alfalfa for the pigmentation of broilers. From the data, it would appear that it would be possible to produce any level of pigmentation desired by combining canthaxanthin with yellow corn or alfalfa or a combination of these two ingredients.