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 4.58
Milk (kg) -116.00 -0.014 1.62
Fat (kg) -3.00 -0.375 1.12
Prot (kg) -4.15 -0.441 1.83
Fertility Sub Index 2.01
Calving Interval (days) -1.07 -1.459 1.56
Survival (%) 0.40 1.117 0.45
Calving Sub Index -0.25
Gestation Length (days) 0.27 -0.919 -0.25
Beef Sub Index 0.81
Carcass Weight (kg) -3.00 -0.528 1.58
Age of Slaughter (days) 1.79 -0.432 -0.77
Maintenance Sub Index Maint. Sub Index 0.55
Live WT (kg) -1.80 -0.307 0.55
Total Carbon Sub Index 7.71

* Based on an €80/tonne carbon price