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 2.50
Milk (kg) -13.00 -0.014 0.18
Fat (kg) -3.04 -0.375 1.14
Prot (kg) -2.68 -0.441 1.18
Fertility Sub Index 0.25
Calving Interval (days) -0.26 -1.459 0.38
Survival (%) -0.12 1.117 -0.13
Calving Sub Index -0.47
Gestation Length (days) 0.51 -0.919 -0.47
Beef Sub Index -0.06
Carcass Weight (kg) -2.00 -0.528 1.06
Age of Slaughter (days) 2.59 -0.432 -1.12
Maintenance Sub Index Maint. Sub Index 2.15
Live WT (kg) -7.00 -0.307 2.15
Total Carbon Sub Index 4.36

* Based on an €80/tonne carbon price