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 2.31
Milk (kg) -91.00 -0.014 1.27
Fat (kg) 1.20 -0.375 -0.45
Prot (kg) -3.37 -0.441 1.49
Fertility Sub Index 2.53
Calving Interval (days) -1.36 -1.459 1.98
Survival (%) 0.49 1.117 0.55
Calving Sub Index 0.64
Gestation Length (days) -0.70 -0.919 0.64
Beef Sub Index 0.53
Carcass Weight (kg) -1.80 -0.528 0.95
Age of Slaughter (days) 0.97 -0.432 -0.42
Maintenance Sub Index Maint. Sub Index 4.90
Live WT (kg) -16.00 -0.307 4.90
Total Carbon Sub Index 10.93

* Based on an €80/tonne carbon price