I have a friend who criticizes me for feeding my chickens weeds, food scraps and anything else that isnt lay mash. His logic is that lay mash is already fornulated perfectly and that any additional food would disrupt the exact proportion of nutrients required for egg laying. Thoughts? Note: i also want to add that i give them all day access to lay mash too. Its just that i add a variety of other foods. Everything(mash, scraps, weeds) is free fed and availabe in infinite amounts for them.