Complex sentence: In 1984 the breed population was estimated at 190,000 head, but in 2012 the total number recorded for the breed was only 230; it is considered to be at risk of extinction.
Split into simpler sentences: In 1984 the breed population was estimated at 190,000 head. In 2012 the total number recorded for the breed was 230; it is considered to be at risk of extinction.