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 5.73
Milk (kg) -156.00 -0.014 2.18
Fat (kg) -6.50 -0.375 2.43
Prot (kg) -2.52 -0.441 1.11
Fertility Sub Index 1.18
Calving Interval (days) -1.04 -1.459 1.52
Survival (%) -0.30 1.117 -0.34
Calving Sub Index -0.31
Gestation Length (days) 0.34 -0.919 -0.31
Beef Sub Index -1.67
Carcass Weight (kg) 1.80 -0.528 -0.95
Age of Slaughter (days) 1.66 -0.432 -0.72
Maintenance Sub Index Maint. Sub Index -1.10
Live WT (kg) 3.60 -0.307 -1.10
Total Carbon Sub Index 3.83

* Based on an €80/tonne carbon price