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 4.58
Milk (kg) -84.00 -0.014 1.18
Fat (kg) -2.57 -0.375 0.96
Prot (kg) -5.54 -0.441 2.45
Fertility Sub Index 1.22
Calving Interval (days) -0.52 -1.459 0.76
Survival (%) 0.41 1.117 0.46
Calving Sub Index -0.17
Gestation Length (days) 0.19 -0.919 -0.17
Beef Sub Index -0.17
Carcass Weight (kg) -1.40 -0.528 0.74
Age of Slaughter (days) 2.10 -0.432 -0.91
Maintenance Sub Index Maint. Sub Index -1.50
Live WT (kg) 4.90 -0.307 -1.50
Total Carbon Sub Index 3.96

* Based on an €80/tonne carbon price