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 3.60
Milk (kg) -30.00 -0.014 0.42
Fat (kg) -4.60 -0.375 1.72
Prot (kg) -3.30 -0.441 1.46
Fertility Sub Index 0.53
Calving Interval (days) -0.57 -1.459 0.83
Survival (%) -0.27 1.117 -0.30
Calving Sub Index -0.47
Gestation Length (days) 0.51 -0.919 -0.47
Beef Sub Index -0.33
Carcass Weight (kg) -0.50 -0.528 0.26
Age of Slaughter (days) 1.38 -0.432 -0.60
Maintenance Sub Index Maint. Sub Index 0.98
Live WT (kg) -3.20 -0.307 0.98
Total Carbon Sub Index 4.31

* Based on an €80/tonne carbon price