Complex sentence: The Gloucester Cattle Society was revived in 1973 and the breed has moved from near extinction to being rated by the Rare Breeds Survival Trust as being "At Risk", as there are still fewer than 750 registered breeding females.
Split into simpler sentences: The Gloucester Cattle Society was revived in 1973 and the breed has moved from near extinction to there being over 650 registered females. The Rare Breeds Survival Trust lists the Gloucester as being "At Risk" as there are fewer than 750 registered breeding females.