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 1.70
Milk (kg) -59.00 -0.014 0.83
Fat (kg) -0.55 -0.375 0.21
Prot (kg) -1.52 -0.441 0.67
Fertility Sub Index 1.40
Calving Interval (days) -0.75 -1.459 1.09
Survival (%) 0.27 1.117 0.30
Calving Sub Index -0.47
Gestation Length (days) 0.51 -0.919 -0.47
Beef Sub Index 0.11
Carcass Weight (kg) -2.10 -0.528 1.11
Age of Slaughter (days) 2.32 -0.432 -1.00
Maintenance Sub Index Maint. Sub Index 1.69
Live WT (kg) -5.50 -0.307 1.69
Total Carbon Sub Index 4.42

* Based on an €80/tonne carbon price