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 4.20
Milk (kg) -139.00 -0.014 1.95
Fat (kg) -1.42 -0.375 0.53
Prot (kg) -3.90 -0.441 1.72
Fertility Sub Index 1.39
Calving Interval (days) -1.08 -1.459 1.58
Survival (%) -0.17 1.117 -0.19
Calving Sub Index 1.26
Gestation Length (days) -1.37 -0.919 1.26
Beef Sub Index -0.75
Carcass Weight (kg) 0.20 -0.528 -0.11
Age of Slaughter (days) 1.50 -0.432 -0.65
Maintenance Sub Index Maint. Sub Index 1.20
Live WT (kg) -3.90 -0.307 1.20
Total Carbon Sub Index 7.29

* Based on an €80/tonne carbon price