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 3.53
Milk (kg) -169.00 -0.014 2.37
Fat (kg) -0.41 -0.375 0.15
Prot (kg) -2.28 -0.441 1.01
Fertility Sub Index 3.24
Calving Interval (days) -1.72 -1.459 2.51
Survival (%) 0.65 1.117 0.73
Calving Sub Index 0.38
Gestation Length (days) -0.41 -0.919 0.38
Beef Sub Index 0.75
Carcass Weight (kg) -2.60 -0.528 1.37
Age of Slaughter (days) 1.43 -0.432 -0.62
Maintenance Sub Index Maint. Sub Index 3.53
Live WT (kg) -11.50 -0.307 3.53
Total Carbon Sub Index 11.42

* Based on an €80/tonne carbon price