Beastmen are poor farmers and herders, even when taught civilized methods. Once the population of a chaotic domain exceeds 125 peasant families per 6-mile hex, the excess peasant families will provide only 1⁄2 the normal land revenue.
Does this limitation apply to peasant families composed of human or demi-human slave laborers?
I considered the possibility that beastmen might suck at everything, including slave owning. On the other hand, intimidating weaker people into doing things for them might be an area where beastmen excel.