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 1.00
Milk (kg) -2.00 -0.014 0.03
Fat (kg) -1.80 -0.375 0.67
Prot (kg) -0.67 -0.441 0.30
Fertility Sub Index 0.50
Calving Interval (days) -0.61 -1.459 0.89
Survival (%) -0.35 1.117 -0.39
Calving Sub Index 0.15
Gestation Length (days) -0.16 -0.919 0.15
Beef Sub Index 0.93
Carcass Weight (kg) -2.90 -0.528 1.53
Age of Slaughter (days) 1.40 -0.432 -0.60
Maintenance Sub Index Maint. Sub Index 3.43
Live WT (kg) -11.20 -0.307 3.43
Total Carbon Sub Index 6.01

* Based on an €80/tonne carbon price