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 2.14
Milk (kg) -2.00 -0.014 0.03
Fat (kg) -1.39 -0.375 0.52
Prot (kg) -3.61 -0.441 1.59
Fertility Sub Index 2.06
Calving Interval (days) -0.95 -1.459 1.39
Survival (%) 0.60 1.117 0.67
Calving Sub Index -0.30
Gestation Length (days) 0.33 -0.919 -0.30
Beef Sub Index 0.76
Carcass Weight (kg) 2.80 -0.528 -1.48
Age of Slaughter (days) -5.18 -0.432 2.24
Maintenance Sub Index Maint. Sub Index -5.36
Live WT (kg) 17.50 -0.307 -5.36
Total Carbon Sub Index -0.71

* Based on an €80/tonne carbon price