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 6.15
Milk (kg) -132.00 -0.014 1.85
Fat (kg) -3.79 -0.375 1.42
Prot (kg) -6.54 -0.441 2.89
Fertility Sub Index 0.79
Calving Interval (days) -0.21 -1.459 0.31
Survival (%) 0.43 1.117 0.48
Calving Sub Index 0.28
Gestation Length (days) -0.31 -0.919 0.28
Beef Sub Index 0.13
Carcass Weight (kg) -1.90 -0.528 1.00
Age of Slaughter (days) 2.03 -0.432 -0.88
Maintenance Sub Index Maint. Sub Index -3.00
Live WT (kg) 9.80 -0.307 -3.00
Total Carbon Sub Index 4.34

* Based on an €80/tonne carbon price