Carbon Sub Index breakdown

Date of Evaluation Date of Eval. Index Trait PTA *Carbon Cost (€) Contribution Contrib.
PTA * Carbon Cost
Sep 2025 Milk Sub Index 3.98
Milk (kg) -82.00 -0.014 1.15
Fat (kg) -3.38 -0.375 1.27
Prot (kg) -3.54 -0.441 1.56
Fertility Sub Index 0.45
Calving Interval (days) -0.05 -1.459 0.07
Survival (%) 0.34 1.117 0.38
Calving Sub Index 3.70
Gestation Length (days) -4.02 -0.919 3.70
Beef Sub Index 0.02
Carcass Weight (kg) -2.50 -0.528 1.32
Age of Slaughter (days) 3.01 -0.432 -1.30
Maintenance Sub Index Maint. Sub Index 3.95
Live WT (kg) -12.90 -0.307 3.95
Total Carbon Sub Index 12.10

* Based on an €80/tonne carbon price