Best animals to raise on a farm?

I know there is no "perfect" animal but i am wondering which farm animal, if any would be best to: .Make profit off of .Don't mess up the land (Alberta) .Aren't as susceptible to sickness (Any farm animal except cattle) I was thinking that it might be sheep, because i heard they do a less... show more I know there is no "perfect" animal but i am wondering which farm animal, if any would be best to:

.Make profit off of
.Don't mess up the land (Alberta)
.Aren't as susceptible to sickness
(Any farm animal except cattle)

I was thinking that it might be sheep, because i heard they do a less amount of damage to the land and you don't have to take them to the slaughter house to make a profit, you can milk and shear them instead. What are other farm animals that will make an overall good profit? How much land (in acres) would i need?

Thanks ; )
3 answers 3