Well, my girls are in dry lot and, with a very few specific exceptions, I've never had to worm them. I do not free choice feed, so the hay does not build up in the pens though.
My goats are dry-lotted in an old feed lot - I don't even know how far down the cow manure goes. We've used a post hole driller attached to a skid steer in them on a number of occasions and have never gotten below the manure. So far, thank you Lord, this is not a challenge, I've never had a case of foot rot, but I also make sure that they have dry ground they can go to. I've built up the floor of my shelters to make sure that they are high enough that there is never standing water in them. I do have an area in the middle of a couple of pens that collects water, but I make sure that there is dry ground around those areas. I'll be the first to say that my area being semi-desert helps a lot, but we do get our rainy years. About 3 years ago it started raining on the 31st of May and didn't quit until the 28 of June - literally! Even under those conditions, I had no problems with foot rot.The land was previously used for cows and horses.
Oops, I lied. The big doe that Trinity liked so much is Pebbles. She was born here and is only 4 years old. Sorry, I forgot she was in the pictures.That's amazing, GoatCrazy! I'm hoping to breed for some more parasite resistance. I deworm herbally, which has worked well for us, but I still always worry for them and I wish they weren't constantly being re-infected.