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 3.60
Milk (kg) -90.00 -0.014 1.26
Fat (kg) -2.32 -0.375 0.87
Prot (kg) -3.34 -0.441 1.47
Fertility Sub Index 5.84
Calving Interval (days) -3.52 -1.459 5.14
Survival (%) 0.63 1.117 0.70
Calving Sub Index 0.46
Gestation Length (days) -0.50 -0.919 0.46
Beef Sub Index 1.81
Carcass Weight (kg) -3.80 -0.528 2.00
Age of Slaughter (days) 0.45 -0.432 -0.19
Maintenance Sub Index Maint. Sub Index 3.83
Live WT (kg) -12.50 -0.307 3.83
Total Carbon Sub Index 15.55

* Based on an €80/tonne carbon price