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 2.05
Milk (kg) -13.00 -0.014 0.18
Fat (kg) -2.32 -0.375 0.87
Prot (kg) -2.26 -0.441 1.00
Fertility Sub Index 2.57
Calving Interval (days) -1.25 -1.459 1.82
Survival (%) 0.67 1.117 0.75
Calving Sub Index -0.47
Gestation Length (days) 0.51 -0.919 -0.47
Beef Sub Index 0.66
Carcass Weight (kg) -2.70 -0.528 1.42
Age of Slaughter (days) 1.76 -0.432 -0.76
Maintenance Sub Index Maint. Sub Index 1.62
Live WT (kg) -5.30 -0.307 1.62
Total Carbon Sub Index 6.44

* Based on an €80/tonne carbon price