Holstein mare - I am selling my Holsteiner mare, 21 years old, with a heavy heart. She would do nothing to anyone and is subordinate to everything and everyone She is being sold as a side owner as she is simply not physically fit in that respect as she is very thin and the muscles are not there either. Since she has been retired for 2 years. Lorina has thrombosis in one leg, but this has never affected her in the 13 years I have owned her as long as she has her exercise in the meadow and in the open stable.