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 2.90
Milk (kg) -81.00 -0.014 1.13
Fat (kg) -2.18 -0.375 0.82
Prot (kg) -2.15 -0.441 0.95
Fertility Sub Index 6.45
Calving Interval (days) -4.17 -1.459 6.08
Survival (%) 0.33 1.117 0.37
Calving Sub Index 1.30
Gestation Length (days) -1.41 -0.919 1.30
Beef Sub Index 1.25
Carcass Weight (kg) -3.80 -0.528 2.00
Age of Slaughter (days) 1.75 -0.432 -0.76
Maintenance Sub Index Maint. Sub Index 3.16
Live WT (kg) -10.30 -0.307 3.16
Total Carbon Sub Index 15.06

* Based on an €80/tonne carbon price