What are the advantages of raising meat-type breeding chickens on mixed floor?

Advantages of mixed floor: breeding chickens mostly mate on litter, which is more natural; sometimes grains are also scattered to let the chickens scratch for them, promoting their movement and mating. Feed troughs and gravity-flow drinkers (troughs) are evenly placed on the floor on both sides of wooden boards or other slatted structures. Most of the chickens' daily droppings are excreted while they are feeding and fall below the slats. The fertilization rate of this method is higher than that of fully slatted floors, and the stocking density is slightly lower, at 4.3 birds per sq m.