How to select your mating sires
When selecting bulls to use on your herd we recommend using only those with a £PLI, £SCI or £ACI greater than the below figures:
| Index | Breed | Minimum for top 50% |
| £PLI | Holstein | 486 |
| Friesian | 147 | |
| Ayrshire | 109 | |
| Jersey | 246 | |
| Guernsey | 0 | |
| Shorthorn | 0 | |
| Montbeliarde | 124 | |
| Fleckvieh | 118 | |
| Brown Swiss | 159 | |
| £ACI | All | 262 |
| £SCI | All | 185 |
This table will be updated following each full UK genetic and genomic evaluation run in April, August and December. Current figures are calculated from April 2021 young genomic and daughter proven lists available from AHDB Dairy.
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