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 1.82
Milk (kg) -9.00 -0.014 0.13
Fat (kg) -1.78 -0.375 0.67
Prot (kg) -2.33 -0.441 1.03
Fertility Sub Index 4.65
Calving Interval (days) -2.57 -1.459 3.75
Survival (%) 0.81 1.117 0.90
Calving Sub Index 0.41
Gestation Length (days) -0.45 -0.919 0.41
Beef Sub Index 0.06
Carcass Weight (kg) -1.90 -0.528 1.00
Age of Slaughter (days) 2.18 -0.432 -0.94
Maintenance Sub Index Maint. Sub Index 2.27
Live WT (kg) -7.40 -0.307 2.27
Total Carbon Sub Index 9.21

* Based on an €80/tonne carbon price