Make sure the kids have been wormed. I see a lot of families that get their project home and don't worm them. Then they call wondering why the Goat isn't growing very well. Every farm has a different worm load, so I recommend worming 10-14 days after bringing your Goat home.
If the goats are not eating enough and their appetite isn't good, give them a vitamin b12 supplement to increase appetite. Give liquid supplement with each feeding. You can not over dose vitamin B. Anything not used is excreted through the urine.
And I totally agree with above poster....very little hay if any. I give a handful a few times a week, but none within a week of show.
I also don't feed mineral to show goats on full feed. They eat way better. If you feed mineral, their bodies tell them they are getting all they need and they're more likely to turn their nose up to the grain. The show feeds have all the minerals they need in the feed.