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 1.41
Milk (kg) -117.00 -0.014 1.64
Fat (kg) 2.13 -0.375 -0.80
Prot (kg) -1.28 -0.441 0.56
Fertility Sub Index 4.19
Calving Interval (days) -1.30 -1.459 1.90
Survival (%) 2.05 1.117 2.29
Calving Sub Index 3.48
Gestation Length (days) -3.79 -0.919 3.48
Beef Sub Index -2.57
Carcass Weight (kg) 1.60 -0.528 -0.84
Age of Slaughter (days) 3.99 -0.432 -1.72
Maintenance Sub Index Maint. Sub Index 0.12
Live WT (kg) -0.40 -0.307 0.12
Total Carbon Sub Index 6.63

* Based on an €80/tonne carbon price