It seems that the ones fed the color enhanced foods had better color but didn't grow as healthy, while the ones fed the staple food weren't as colorful, but grew larger. well i guess it would be ok to say to feed both color enhancing food for color purposes, and staple foods for growth. If you fed both each day... like the color enhancing stuff in the morning, and the staple food in the evening, would you not get the best results?
Personally, when i used to do science projects in high school i made charts and graphs to make it easy to understand, i think thats what that guy should've done to make it a bit clearer because i may be reading it wrong..