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 -2.46
Milk (kg) 10.00 -0.014 -0.14
Fat (kg) 6.46 -0.375 -2.42
Prot (kg) -0.23 -0.441 0.10
Fertility Sub Index -0.08
Calving Interval (days) 0.23 -1.459 -0.34
Survival (%) 0.23 1.117 0.26
Calving Sub Index 0.30
Gestation Length (days) -0.33 -0.919 0.30
Beef Sub Index 0.32
Carcass Weight (kg) -0.80 -0.528 0.42
Age of Slaughter (days) 0.24 -0.432 -0.10
Maintenance Sub Index Maint. Sub Index 0.06
Live WT (kg) -0.20 -0.307 0.06
Total Carbon Sub Index -1.85

* Based on an €80/tonne carbon price