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 2.77
Milk (kg) -17.00 -0.014 0.24
Fat (kg) -3.94 -0.375 1.48
Prot (kg) -2.39 -0.441 1.05
Fertility Sub Index 1.40
Calving Interval (days) -0.65 -1.459 0.95
Survival (%) 0.40 1.117 0.45
Calving Sub Index -0.47
Gestation Length (days) 0.51 -0.919 -0.47
Beef Sub Index 0.47
Carcass Weight (kg) -2.30 -0.528 1.21
Age of Slaughter (days) 1.73 -0.432 -0.75
Maintenance Sub Index Maint. Sub Index 2.39
Live WT (kg) -7.80 -0.307 2.39
Total Carbon Sub Index 6.55

* Based on an €80/tonne carbon price