Carbon Sub Index breakdown

Date of Evaluation Date of Eval. Index Trait PTA *Carbon Cost (€) Contribution Contrib.
PTA * Carbon Cost
May 2025 Milk Sub Index 2.20
Milk (kg) -74.00 -0.014 1.04
Fat (kg) 2.57 -0.375 -0.96
Prot (kg) -4.81 -0.441 2.12
Fertility Sub Index 0.21
Calving Interval (days) -0.35 -1.459 0.51
Survival (%) -0.27 1.117 -0.30
Calving Sub Index -0.47
Gestation Length (days) 0.51 -0.919 -0.47
Beef Sub Index 0.03
Carcass Weight (kg) -1.70 -0.528 0.90
Age of Slaughter (days) 2.01 -0.432 -0.87
Maintenance Sub Index Maint. Sub Index 2.05
Live WT (kg) -6.70 -0.307 2.05
Total Carbon Sub Index 4.01

* Based on an €80/tonne carbon price