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 3.30
Milk (kg) -121.00 -0.014 1.69
Fat (kg) -1.05 -0.375 0.39
Prot (kg) -2.75 -0.441 1.21
Fertility Sub Index 1.74
Calving Interval (days) -0.85 -1.459 1.24
Survival (%) 0.45 1.117 0.50
Calving Sub Index -0.47
Gestation Length (days) 0.51 -0.919 -0.47
Beef Sub Index -0.04
Carcass Weight (kg) -1.10 -0.528 0.58
Age of Slaughter (days) 1.44 -0.432 -0.62
Maintenance Sub Index Maint. Sub Index 1.04
Live WT (kg) -3.40 -0.307 1.04
Total Carbon Sub Index 5.58

* Based on an €80/tonne carbon price