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 4.68
Milk (kg) -113.00 -0.014 1.58
Fat (kg) -1.18 -0.375 0.44
Prot (kg) -6.01 -0.441 2.65
Fertility Sub Index 4.62
Calving Interval (days) -2.62 -1.459 3.82
Survival (%) 0.71 1.117 0.79
Calving Sub Index 0.75
Gestation Length (days) -0.82 -0.919 0.75
Beef Sub Index -0.41
Carcass Weight (kg) 1.60 -0.528 -0.84
Age of Slaughter (days) -1.00 -0.432 0.43
Maintenance Sub Index Maint. Sub Index 0.15
Live WT (kg) -0.50 -0.307 0.15
Total Carbon Sub Index 9.78

* Based on an €80/tonne carbon price