So trying to raise them in Missouri would not likely work to well with out a large enough barn to be able to get them in out of the cold when nasty weather hits. What are the land requirements for the blackbuck? I'd guess using a weight ratio like you do to figure the whitetail pasture utilization it would be around around 10 animals to 1 cow calf unit. I'm getting way ahead of my self though I don't even have the land yet to do anything. Plus raising the exotics is going to get me into trouble I'm going to want to raise everything. I'd love to raise whitetail, blackbuck, red deer, fallow, sika, sambar, axis, and pretty much anything else I can get my hands on. But that would take some serious land and the climate would not be suitable for raising all of those species with out special accomodations.