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 3.82
Milk (kg) -25.00 -0.014 0.35
Fat (kg) -3.95 -0.375 1.48
Prot (kg) -4.51 -0.441 1.99
Fertility Sub Index 1.06
Calving Interval (days) -0.40 -1.459 0.58
Survival (%) 0.43 1.117 0.48
Calving Sub Index -0.47
Gestation Length (days) 0.51 -0.919 -0.47
Beef Sub Index -1.07
Carcass Weight (kg) -1.00 -0.528 0.53
Age of Slaughter (days) 3.70 -0.432 -1.60
Maintenance Sub Index Maint. Sub Index 0.18
Live WT (kg) -0.60 -0.307 0.18
Total Carbon Sub Index 3.53

* Based on an €80/tonne carbon price