The DSM Yolk Color Fan (formerly Roche Yolk Color Fan) features a 16-scale color index for distinguishing yolk color density and is widely used in the poultry industry worldwide.

Consumer studies show that people around the world have strong cultural preferences for food color, and the DSM Yolk Color Fan enables feed producers to supplement feed with precise levels of carotenoids, ensuring consistent yolk color that meets consumer expectations globally.

For example, in Japan, many branded eggs come from chickens fed flower petals—commonly chrysanthemums—to produce a darker yellow yolk. Red rose petals can add an orange hue. Feeds in Japan typically contain higher percentages of carotene or carotenoids because darker yolks are perceived as healthier and more nutritious.

The DSM Yolk Color Fan is a global standard for carotenoid-based pigmentation in egg yolks and is recognized across the poultry industry value chain as the reference method for yolk color assessment.

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