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 2.15
Milk (kg) -21.00 -0.014 0.29
Fat (kg) -2.27 -0.375 0.85
Prot (kg) -2.27 -0.441 1.00
Fertility Sub Index 5.12
Calving Interval (days) -2.69 -1.459 3.92
Survival (%) 1.07 1.117 1.20
Calving Sub Index -0.47
Gestation Length (days) 0.51 -0.919 -0.47
Beef Sub Index 0.18
Carcass Weight (kg) -2.10 -0.528 1.11
Age of Slaughter (days) 2.16 -0.432 -0.93
Maintenance Sub Index Maint. Sub Index 3.00
Live WT (kg) -9.80 -0.307 3.00
Total Carbon Sub Index 9.97

* Based on an €80/tonne carbon price