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 4.84
Milk (kg) -171.00 -0.014 2.39
Fat (kg) -0.91 -0.375 0.34
Prot (kg) -4.76 -0.441 2.10
Fertility Sub Index 2.30
Calving Interval (days) -1.21 -1.459 1.77
Survival (%) 0.48 1.117 0.54
Calving Sub Index -0.29
Gestation Length (days) 0.32 -0.919 -0.29
Beef Sub Index 0.26
Carcass Weight (kg) -2.10 -0.528 1.11
Age of Slaughter (days) 1.96 -0.432 -0.85
Maintenance Sub Index Maint. Sub Index 2.45
Live WT (kg) -8.00 -0.307 2.45
Total Carbon Sub Index 9.55

* Based on an €80/tonne carbon price