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 5.09
Milk (kg) -72.00 -0.014 1.01
Fat (kg) -7.37 -0.375 2.76
Prot (kg) -3.00 -0.441 1.32
Fertility Sub Index 2.18
Calving Interval (days) -1.86 -1.459 2.71
Survival (%) -0.48 1.117 -0.54
Calving Sub Index -1.85
Gestation Length (days) 2.01 -0.919 -1.85
Beef Sub Index -1.92
Carcass Weight (kg) 1.10 -0.528 -0.58
Age of Slaughter (days) 3.10 -0.432 -1.34
Maintenance Sub Index Maint. Sub Index 0.83
Live WT (kg) -2.70 -0.307 0.83
Total Carbon Sub Index 4.34

* Based on an €80/tonne carbon price