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 3.54
Milk (kg) -106.00 -0.014 1.48
Fat (kg) -1.88 -0.375 0.70
Prot (kg) -3.06 -0.441 1.35
Fertility Sub Index 2.12
Calving Interval (days) -1.13 -1.459 1.65
Survival (%) 0.42 1.117 0.47
Calving Sub Index 3.83
Gestation Length (days) -4.17 -0.919 3.83
Beef Sub Index 0.89
Carcass Weight (kg) -1.90 -0.528 1.00
Age of Slaughter (days) 0.25 -0.432 -0.11
Maintenance Sub Index Maint. Sub Index 5.15
Live WT (kg) -16.80 -0.307 5.15
Total Carbon Sub Index 15.53

* Based on an €80/tonne carbon price