Carbon Sub Index breakdown

Date of Evaluation Date of Eval. Index Trait PTA *Carbon Cost (€) Contribution Contrib.
PTA * Carbon Cost
Sep 2025 Milk Sub Index 6.27
Milk (kg) -140.00 -0.014 1.96
Fat (kg) -4.19 -0.375 1.57
Prot (kg) -6.20 -0.441 2.74
Fertility Sub Index 1.01
Calving Interval (days) -1.17 -1.459 1.71
Survival (%) -0.62 1.117 -0.69
Calving Sub Index 1.80
Gestation Length (days) -1.96 -0.919 1.80
Beef Sub Index 1.27
Carcass Weight (kg) -4.60 -0.528 2.43
Age of Slaughter (days) 2.69 -0.432 -1.16
Maintenance Sub Index Maint. Sub Index 2.45
Live WT (kg) -8.00 -0.307 2.45
Total Carbon Sub Index 12.80

* Based on an €80/tonne carbon price