£PLI - Profitable Lifetime Index

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Brown Swiss
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To access the reports, please use the breed selector on the right or use the bull search.

To help you breed the right cow to fit your system AHDB Dairy recommend the following four step plan when selecting bulls for your breeding programme:

1) Select £PLI bulls with a higher value than your best cow

2) Select fitness traits to maintain your strengths and address herd weaknesses (Fertility, Lifespan etc)

3) Match type to suit your herd

4) Selected calving ease for maiden heifers

About £PLI

The £PLI is a within breed genetic index* developed specifically for UK dairy farmers. The £PLI value represents the additional profit a high £PLI bull is expected to return from each of its milking daughters over her lifetime compared to an average bull of £0 PLI.

The index has been developed to provide an initial screen tool to ensure bulls used on farm meet specific criteria. It is then recommended specific emphasis is placed on the management traits that require attention on individual farms**. The main updates introduced in 2018 are shown below.

Relative weighting of traits within £PLI

PLI chart




The £PLI:
- Promotes yield and maintains milk quality

- Increases emphasis on fertility
- Improves functional type - feet & legs and mammary
- Increases emphasis on longevity
- Reduces maintainance costs
- Improves udder health
- Improves calving performance

For more information and FAQ’s on the £PLI download the factsheet here.

*All breeds evaluated with £PLI are within their own breed base so across breed evaluation is not directly possible. If you wish to compare across breeds please contact the breed evaluation team for a conversion - breeding.evaluations@ahdb.org.uk

** Farmers can identify the strengths and weaknesses of their herd by viewing their Herd Genetic Report (HGR). To register for your farm HGR please contact the evaluation team at breeding.evaluations@ahdb.org.uk providing your trading name, farm postcode and NMR/CIS or Dale Farm milk recording number.