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 3.68
Milk (kg) -99.00 -0.014 1.39
Fat (kg) -3.12 -0.375 1.17
Prot (kg) -2.54 -0.441 1.12
Fertility Sub Index 1.30
Calving Interval (days) -0.69 -1.459 1.01
Survival (%) 0.26 1.117 0.29
Calving Sub Index -0.47
Gestation Length (days) 0.51 -0.919 -0.47
Beef Sub Index 0.10
Carcass Weight (kg) -1.60 -0.528 0.84
Age of Slaughter (days) 1.73 -0.432 -0.75
Maintenance Sub Index Maint. Sub Index 2.02
Live WT (kg) -6.60 -0.307 2.02
Total Carbon Sub Index 6.62

* Based on an €80/tonne carbon price