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 2.82
Milk (kg) -4.00 -0.014 0.06
Fat (kg) -2.56 -0.375 0.96
Prot (kg) -4.10 -0.441 1.81
Fertility Sub Index 1.83
Calving Interval (days) -0.98 -1.459 1.43
Survival (%) 0.36 1.117 0.40
Calving Sub Index -0.47
Gestation Length (days) 0.51 -0.919 -0.47
Beef Sub Index 0.07
Carcass Weight (kg) -2.90 -0.528 1.53
Age of Slaughter (days) 3.37 -0.432 -1.45
Maintenance Sub Index Maint. Sub Index 0.67
Live WT (kg) -2.20 -0.307 0.67
Total Carbon Sub Index 4.93

* Based on an €80/tonne carbon price