José Abín likes the news release:
     
    
    
        
        Natural Pigment Technology May Be Vital Alternative Due to Tight Synthetic Supply. Novus International’s COLORTEK® Yellow Delivers Quality Pigmentation Through Natural Ingredients.
ST. LOUIS (December 13, 2017) – A new natural carotenoid product may be the only option for some egg and poultry producers facing a tight supply of synthetic pigments. Demand for COLORTEK® Yellow  ...
     
 
    Participation in Forum on November 25, 2016
    
    
	
        
            I recommend reading this informative review on this topic.
Feeding Behaviour of Broiler Chickens: a Review on the Biomechanical Characteristics by Neves DPI; Banhazi TMII; Nääs IA at Rev. Bras. Cienc. Avic. vol.16 no.2 Campinas Apr./June 2014
This is the link:  http://dx.doi.org/10.1590/1516-635x16021-16  
            
         
    
 
    
 
    This member had joined Engormix
    September 6, 2013