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 3.90
Milk (kg) -53.00 -0.014 0.74
Fat (kg) -4.02 -0.375 1.51
Prot (kg) -3.74 -0.441 1.65
Fertility Sub Index 2.07
Calving Interval (days) -1.09 -1.459 1.59
Survival (%) 0.43 1.117 0.48
Calving Sub Index -2.02
Gestation Length (days) 2.20 -0.919 -2.02
Beef Sub Index -4.43
Carcass Weight (kg) 8.50 -0.528 -4.48
Age of Slaughter (days) -0.13 -0.432 0.06
Maintenance Sub Index Maint. Sub Index -3.89
Live WT (kg) 12.70 -0.307 -3.89
Total Carbon Sub Index -4.38

* Based on an €80/tonne carbon price