Top Jersey Production Herds of 2025

As reported in Issue 3 of the 2026 Jersey Journal, the American Jersey Cattle Association (AJCA) reports new records for all measures of actual production for Registered Jerseys in 2025. New records were also reached for standardized fat, protein and cheese yield in 2025. Standardized milk decreased slightly.

The official lactation average is now 20,711 lbs. milk, 1,059 lbs. fat and 788 lbs. protein on a mature equivalent (m.e.) basis. Components tests are 5.11% fat and 3.80% protein. On a cheddar cheese yield basis (38% moisture), average production is 2,694 lbs. and cheese yield per hundredweight stands at 13.01 lbs. The average is based on 78,288 lactations, up 665 lactations versus 2024.

Below are the herds as ranked by overall milk, fat, and protein and also ranked by herd size (both actual and m.e. basis).

Congratulations to all of the ranking herds.

Click here for the list of Herds ranked by Actual Production

Click here for the list of herds ranked by M.E. Production