The effect of carotenoids on yolk and skin pigmentation

Not all carotenoids are the same when it comes to yolk and skin pigmentation. As markets have different preferences for yolk and/or skin colours, it is of utmost importance to understand the colouring effect of different carotenoids used in poultry feeds.   By Catherine Hamelin and Ulrich Altemueller , DSM Nutritional Products Europe Carotenoids are natural compounds present in animals and plants; with yellow, orange and red typically associated with birds. It is well known that bir