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 4.55
Milk (kg) -143.00 -0.014 2.00
Fat (kg) -3.66 -0.375 1.37
Prot (kg) -2.66 -0.441 1.17
Fertility Sub Index 2.19
Calving Interval (days) -1.04 -1.459 1.52
Survival (%) 0.60 1.117 0.67
Calving Sub Index -0.47
Gestation Length (days) 0.51 -0.919 -0.47
Beef Sub Index 0.21
Carcass Weight (kg) -1.70 -0.528 0.90
Age of Slaughter (days) 1.59 -0.432 -0.69
Maintenance Sub Index Maint. Sub Index 1.87
Live WT (kg) -6.10 -0.307 1.87
Total Carbon Sub Index 8.35

* Based on an €80/tonne carbon price