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 3.12
Milk (kg) -154.00 -0.014 2.16
Fat (kg) -1.90 -0.375 0.71
Prot (kg) -0.57 -0.441 0.25
Fertility Sub Index 0.35
Calving Interval (days) 0.37 -1.459 -0.54
Survival (%) 0.80 1.117 0.89
Calving Sub Index -1.01
Gestation Length (days) 1.10 -0.919 -1.01
Beef Sub Index -2.32
Carcass Weight (kg) 0.60 -0.528 -0.32
Age of Slaughter (days) 4.64 -0.432 -2.00
Maintenance Sub Index Maint. Sub Index 4.26
Live WT (kg) -13.90 -0.307 4.26
Total Carbon Sub Index 4.40

* Based on an €80/tonne carbon price