Breeding & Genetics

Welcome to the AHDB Dairy genetic evaluations homepage

AHDB Dairy Breeding is the independent source for the latest UK genetic evaluation results, explanations of the indices and statistical analysis of all major breeds in the United Kingdom.


To ensure you use the genetics best suited to your business, please select from the correct index below to be directed to the relevant bull lists. Further details on each index can be found below via the links below.



Use £PLI for -



Use £SCI for -


The vast majority of farms

Spring block calving herds
Autumn block or all year round calving herds

Making extensive use of spring grass targeting

4,500 kgs/yr

Within breed selection

Across-breed selections

Revised and updated version of 2007 Profitable Lifetime


Low level of input through autumn and winter
PLI Button SCI Button


HGR Button

If you would like to register for your herd’s genetic summary, please email with your name, address and milk recording number. Log in details will be sent to you by email within two working days.