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 6.27
Milk (kg) -146.00 -0.014 2.04
Fat (kg) -4.19 -0.375 1.57
Prot (kg) -6.02 -0.441 2.66
Fertility Sub Index 0.10
Calving Interval (days) -0.18 -1.459 0.26
Survival (%) -0.15 1.117 -0.17
Calving Sub Index -0.47
Gestation Length (days) 0.51 -0.919 -0.47
Beef Sub Index -0.95
Carcass Weight (kg) 0.10 -0.528 -0.05
Age of Slaughter (days) 2.08 -0.432 -0.90
Maintenance Sub Index Maint. Sub Index 1.66
Live WT (kg) -5.40 -0.307 1.66
Total Carbon Sub Index 6.60

* Based on an €80/tonne carbon price