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 2.79
Milk (kg) -73.00 -0.014 1.02
Fat (kg) -1.87 -0.375 0.70
Prot (kg) -2.43 -0.441 1.07
Fertility Sub Index 1.89
Calving Interval (days) -0.94 -1.459 1.37
Survival (%) 0.46 1.117 0.51
Calving Sub Index -0.21
Gestation Length (days) 0.23 -0.919 -0.21
Beef Sub Index 0.17
Carcass Weight (kg) -2.00 -0.528 1.06
Age of Slaughter (days) 2.05 -0.432 -0.88
Maintenance Sub Index Maint. Sub Index 0.61
Live WT (kg) -2.00 -0.307 0.61
Total Carbon Sub Index 5.25

* Based on an €80/tonne carbon price