Hi there. I just wanted to give some adivce on your little buckling. One thing I would suggest is treating for coccidia, stress brings on coccidia, weaning, going to the auction, being by himself, being compromised by worms. I would suggest treating him for ten days with a sulfa drug. Coccida will also cause a large belly. When I deworm, I always repeat in ten days. I do not do the feed dewormers because dewormers work best on a fairly empty belly. I either do ivermenction, Levamisole, or valbazen depending on what I am treating for. I feel my goats all grass hay. Straw is not a forage, it has no nutritional value. Goats can live without grain, but they cannot live without hay, and straw is not a substitute. I use a sanction to trim my goats hooves. It is humane and saves on your back. It might be a great idea to get your little guy to the vet and do a fecal to see what worms you need to be treating for and your vet can help you with management and give you good suggestions. Have you looked at his eyelids? Pull down the bottom eyelid, is it bright pink? Is it white? White is bad. Pale is bad. Also be careful buying from auctions. Goats carry diseases, CL, Johnes and CAE. Most goats that end up at auctions are goats that people didnt want to deal with, sick or had issues. I pen my goats in no climb horse fence, never have problems with them getting out. Tying them on a chain isnt the best situtation. They can hang themselves, the neighbors dogs can kill them, even if you are there. Good luck!