The guy I bought them from said they were Yorkshire and Poland china cross. Got them first of April at 40 a piece. Been feeding regular feed and they will go 200 now. I got 2 pounds of sausage left from that one I killed the first of the year . It was about 75 pounds and was given to me because the guy had tried everything and it would not gain any more. I wormed it and kept it a month feeding it and it did not gain anything hardly. It was all lean meat and some of the best I ever smoked. Did not get much lard off it.