Parasite resistant sheep are king on building a profitable grazing operation. No other farm animal can measure up to the low cost of raising a parasite resistant sheep flock. No inputs required except mineral and a guard dog to protect them. When an animal can average twins each year on pasture, that is an unfair advantage to your benefit while growing your flock. If you want to keep your farm profitable every year, check out my 3 grazing books that I wrote on our website: http://greenpasturesfarm.net/books/