Hi if we have 4 sheep in the barn with the time settings on the default we find that every 8 hours of real time we have to clean the barn or else the dung fills the barn and the sheep die.
As there is no larger building to hold sheep and pigs except for the barn it seems excessive. a lot of micromanagement for a game to get some wool. especially at this stage where most guilds around have fewer than 5 ppl. at this rate. its even too much for one person who is specialized to animal lore.