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 6.42
Milk (kg) -157.00 -0.014 2.20
Fat (kg) -5.36 -0.375 2.01
Prot (kg) -5.02 -0.441 2.22
Fertility Sub Index 2.38
Calving Interval (days) -1.23 -1.459 1.79
Survival (%) 0.52 1.117 0.58
Calving Sub Index -0.92
Gestation Length (days) 1.00 -0.919 -0.92
Beef Sub Index 0.21
Carcass Weight (kg) -1.70 -0.528 0.90
Age of Slaughter (days) 1.60 -0.432 -0.69
Maintenance Sub Index Maint. Sub Index 1.90
Live WT (kg) -6.20 -0.307 1.90
Total Carbon Sub Index 9.99

* Based on an €80/tonne carbon price