Latvian blackhead sheep are in a clean environment at the Ances farm, which is in the Northern Vidzeme Biosphere Reserve near the border with Estonia.  It is in the Naukšēni Parish, where chemical plant protection substances and mineral fertilisers have never been used intensively.  The sheep roam freely during the winter and summer, with fencing to protect them against wolves and wild boar.  The farm only uses female sheep born as twins or triplets, including animals for genetic resources.  All of the sheep come from German blackhead sheep and are only mated with high-quality LT rams in January, February, August and September.