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 3.28
Milk (kg) -76.00 -0.014 1.06
Fat (kg) -3.30 -0.375 1.24
Prot (kg) -2.23 -0.441 0.98
Fertility Sub Index 2.00
Calving Interval (days) -1.14 -1.459 1.66
Survival (%) 0.30 1.117 0.34
Calving Sub Index -0.47
Gestation Length (days) 0.51 -0.919 -0.47
Beef Sub Index 0.18
Carcass Weight (kg) -2.30 -0.528 1.21
Age of Slaughter (days) 2.39 -0.432 -1.03
Maintenance Sub Index Maint. Sub Index 1.23
Live WT (kg) -4.00 -0.307 1.23
Total Carbon Sub Index 6.22

* Based on an €80/tonne carbon price