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 2.35
Milk (kg) -15.00 -0.014 0.21
Fat (kg) -4.70 -0.375 1.76
Prot (kg) -0.86 -0.441 0.38
Fertility Sub Index 2.37
Calving Interval (days) -0.98 -1.459 1.43
Survival (%) 0.84 1.117 0.94
Calving Sub Index -1.51
Gestation Length (days) 1.64 -0.919 -1.51
Beef Sub Index -4.43
Carcass Weight (kg) 7.40 -0.528 -3.90
Age of Slaughter (days) 1.22 -0.432 -0.53
Maintenance Sub Index Maint. Sub Index -1.35
Live WT (kg) 4.40 -0.307 -1.35
Total Carbon Sub Index -2.57

* Based on an €80/tonne carbon price