Factors affecting egg yolk pigmenting efficiency
The egg yolk pigmenting efficiency of carotenoids is determined by two main factors: egg yolk deposition rate and carotenoid color (wavelength).
Deposition in egg yolk
Deposition of dietary carotenoids in the egg yolk depends on the individual carotenoid molecule (Figure 1). As the content of carotenoids in the feed increases, their concentration in the egg yolk rises in direct proportion.