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 1.12
Milk (kg) -61.00 -0.014 0.85
Fat (kg) -0.07 -0.375 0.03
Prot (kg) -0.54 -0.441 0.24
Fertility Sub Index 7.56
Calving Interval (days) -3.43 -1.459 5.00
Survival (%) 2.29 1.117 2.56
Calving Sub Index 3.81
Gestation Length (days) -4.14 -0.919 3.81
Beef Sub Index 2.79
Carcass Weight (kg) -3.50 -0.528 1.85
Age of Slaughter (days) -2.18 -0.432 0.94
Maintenance Sub Index Maint. Sub Index 6.13
Live WT (kg) -20.00 -0.307 6.13
Total Carbon Sub Index 21.40

* Based on an €80/tonne carbon price