They do pile some of it up. But most times folks are demandin it, almost as soon as it's taken outta the houses. The uncle here that has houses, also has several spreader trucks. He cleans out nearly all the Sanderson Farms Chicken houses in the Brazos Valley area, and spreads litter on the folks signed up to recieve it. They have a down time of about six weeks, when there's no chickens in the houses. So it's pretty much....haul it outta the houses into the trucks and off to the hay fields.
Their downtime usually starts the middle of Novemeber and goes thru until the first of january. We usually have our fields spread at that time. We've done it once in the spring, and it burnt the hay field real bad.
Can't pass up free fertilizer....no matter how bad it smells LOL