[@The Emperors Blade] I'd like to point out that using a single male as a breeder, while doable, tends to reduce the hardiness of a herd, and results in inbreeding.  Though thinking on it, I suppose you don't have to breed the children with each other once they grow up.  There's enough humans in the city that you can bring in new stock regularly to counter the effects.

Who tends to the human stock, if his guard gives off clouds of disease?  That doesn't sound like something you'd want near your food, nor near your herd.

Overall I think this is awesome.  *wiggles*