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 3.51
Milk (kg) -101.00 -0.014 1.41
Fat (kg) -2.64 -0.375 0.99
Prot (kg) -2.51 -0.441 1.11
Fertility Sub Index 1.59
Calving Interval (days) -0.90 -1.459 1.31
Survival (%) 0.25 1.117 0.28
Calving Sub Index -0.47
Gestation Length (days) 0.51 -0.919 -0.47
Beef Sub Index -0.24
Carcass Weight (kg) -1.60 -0.528 0.84
Age of Slaughter (days) 2.50 -0.432 -1.08
Maintenance Sub Index Maint. Sub Index 1.81
Live WT (kg) -5.90 -0.307 1.81
Total Carbon Sub Index 6.20

* Based on an €80/tonne carbon price