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) -20.00 -0.014 0.28
Fat (kg) -0.85 -0.375 0.32
Prot (kg) -0.92 -0.441 0.41
Fertility Sub Index 0.70
Calving Interval (days) -0.45 -1.459 0.66
Survival (%) 0.04 1.117 0.04
Calving Sub Index -0.47
Gestation Length (days) 0.51 -0.919 -0.47
Beef Sub Index 0.22
Carcass Weight (kg) -1.80 -0.528 0.95
Age of Slaughter (days) 1.69 -0.432 -0.73
Maintenance Sub Index Maint. Sub Index 2.18
Live WT (kg) -7.10 -0.307 2.18
Total Carbon Sub Index 3.63

* Based on an €80/tonne carbon price