The American Jersey Cattle Association (AJCA) announced today that new records for production by Registered Jersey™ cows were established in 2010.
The official Jersey lactation average increased to 18,567 lbs. milk, 876 lbs. fat, and 671 lbs. protein. On a Cheddar cheese equivalent basis, average yield is 2,270 pounds. All are new category records.
A record 88,727 lactations were processed by the AJCA, an increase of 23% in five years.
The lactation average is calculated on a standardized 305-day, twice daily, mature equivalent (m.e.) basis.