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 3.60
Milk (kg) -20.00 -0.014 0.28
Fat (kg) -6.19 -0.375 2.32
Prot (kg) -2.27 -0.441 1.00
Fertility Sub Index 6.50
Calving Interval (days) -3.98 -1.459 5.81
Survival (%) 0.62 1.117 0.69
Calving Sub Index 1.15
Gestation Length (days) -1.25 -0.919 1.15
Beef Sub Index 0.90
Carcass Weight (kg) -2.30 -0.528 1.21
Age of Slaughter (days) 0.72 -0.432 -0.31
Maintenance Sub Index Maint. Sub Index 1.10
Live WT (kg) -3.60 -0.307 1.10
Total Carbon Sub Index 13.25

* Based on an €80/tonne carbon price