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 2.75
Milk (kg) -8.00 -0.014 0.11
Fat (kg) -2.85 -0.375 1.07
Prot (kg) -3.56 -0.441 1.57
Fertility Sub Index 2.07
Calving Interval (days) -1.03 -1.459 1.50
Survival (%) 0.51 1.117 0.57
Calving Sub Index -0.47
Gestation Length (days) 0.51 -0.919 -0.47
Beef Sub Index -0.68
Carcass Weight (kg) -1.00 -0.528 0.53
Age of Slaughter (days) 2.79 -0.432 -1.20
Maintenance Sub Index Maint. Sub Index 1.10
Live WT (kg) -3.60 -0.307 1.10
Total Carbon Sub Index 4.78

* Based on an €80/tonne carbon price