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 1.00
Milk (kg) -2.00 -0.014 0.03
Fat (kg) -2.21 -0.375 0.83
Prot (kg) -0.32 -0.441 0.14
Fertility Sub Index -3.52
Calving Interval (days) 1.37 -1.459 -2.00
Survival (%) -1.36 1.117 -1.52
Calving Sub Index 0.12
Gestation Length (days) -0.13 -0.919 0.12
Beef Sub Index -0.58
Carcass Weight (kg) -1.10 -0.528 0.58
Age of Slaughter (days) 2.69 -0.432 -1.16
Maintenance Sub Index Maint. Sub Index -1.41
Live WT (kg) 4.60 -0.307 -1.41
Total Carbon Sub Index -4.39

* Based on an €80/tonne carbon price