Carbon Sub Index breakdown

Date of Evaluation Date of Eval. Index Trait PTA *Carbon Cost (€) Contribution Contrib.
PTA * Carbon Cost
Sep 2025 Milk Sub Index 3.61
Milk (kg) -69.00 -0.014 0.97
Fat (kg) -3.13 -0.375 1.17
Prot (kg) -3.33 -0.441 1.47
Fertility Sub Index 2.00
Calving Interval (days) -0.78 -1.459 1.14
Survival (%) 0.77 1.117 0.86
Calving Sub Index 3.70
Gestation Length (days) -4.02 -0.919 3.70
Beef Sub Index 0.75
Carcass Weight (kg) -2.60 -0.528 1.37
Age of Slaughter (days) 1.43 -0.432 -0.62
Maintenance Sub Index Maint. Sub Index 5.06
Live WT (kg) -16.50 -0.307 5.06
Total Carbon Sub Index 15.12

* Based on an €80/tonne carbon price