Complex sentence: Finding a dairy sheep producer can be challenging, so some may choose a meat or wool breed, which do not produce as much milk as a dairy breed, but produce enough milk to create small amounts of cheese and other products.
Split into simpler sentences: Finding a dairy sheep producer can be challenging so some may choose a non-dairy breed. Non-dairy breeds will not produce as much milk as a dairy breed but will produce enough milk to create small amounts of cheese and other products.