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 4.08
Milk (kg) -109.00 -0.014 1.53
Fat (kg) -2.89 -0.375 1.08
Prot (kg) -3.34 -0.441 1.47
Fertility Sub Index 1.78
Calving Interval (days) -0.98 -1.459 1.43
Survival (%) 0.31 1.117 0.35
Calving Sub Index -0.28
Gestation Length (days) 0.30 -0.919 -0.28
Beef Sub Index -0.04
Carcass Weight (kg) -1.90 -0.528 1.00
Age of Slaughter (days) 2.41 -0.432 -1.04
Maintenance Sub Index Maint. Sub Index 1.13
Live WT (kg) -3.70 -0.307 1.13
Total Carbon Sub Index 6.67

* Based on an €80/tonne carbon price