Hi sorry to hear about the goats getting the bloat,
i have a great dane who i care for who caught the bloat,it is when the stomach does a flip flop almost and turns upside down,in his case it had turned all the way around inside.
He had aten real fast and drank real fast and then i let him outside to use the bathroom,he started horse playing and when i waklked outside his stomache was growing real big,we rushed him to the PEts emergency room and after alot of money and time he surrvived it.
He was real lucky,now he is always monitored and is not alowed to go out side 3 hours after eating and drinking and his food is slowly gave to him so he wont be a piggy,he got bloat when he was like 5 years old he is now 9yrs old.
I dont know if this would be related to goats but if so,maybe best bet would to monitor how thier eating and thier routine afterwards,if they pig out make them stay still for a few hours to make sure the stomache dosnt move to much.Bloats real wierd animals could be fine one second and the next very ill.
Hope this helps