Effect of supplementing red pigment from Monascus sp. fermented native black rice (Maepayathong Dum Rice) on production performance and egg quality in laying hens

The results indicated that the addition of red pigments led to a deeper-colored yolk compared to the control group, with the highest intensity observed at a 6% red pigments. Furthermore, the addition of red pigments is promoted the quality of chicken eggs and production performance. It indicated that Maepayathong dum rice could be used as a raw material for producing natural pigments to replace synthetic dyes in egg-laying hen feed.