Hope the chickies get better! I line our brooders with puppy pads, then top with thin layer shavings...then add more a couple times a day to cover damp shavings and doody spots. LOL Then every other day or so I do a pull (pull out the funky bedding) and then add fresh. The older they got the more I had to this part. Eventually I ended up with 3 bins by 2 weeks old. The fewer in the small brooders, the neater they would stay. The pekins were tidier in the beginning but by week 2 they had turned into hogs.