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 1.76
Milk (kg) 22.00 -0.014 -0.31
Fat (kg) -2.53 -0.375 0.95
Prot (kg) -2.53 -0.441 1.12
Fertility Sub Index 2.72
Calving Interval (days) -0.47 -1.459 0.69
Survival (%) 1.82 1.117 2.03
Calving Sub Index -0.84
Gestation Length (days) 0.91 -0.919 -0.84
Beef Sub Index -0.53
Carcass Weight (kg) 0.20 -0.528 -0.11
Age of Slaughter (days) 0.98 -0.432 -0.42
Maintenance Sub Index Maint. Sub Index 1.35
Live WT (kg) -4.40 -0.307 1.35
Total Carbon Sub Index 4.46

* Based on an €80/tonne carbon price