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 3.20
Milk (kg) -67.00 -0.014 0.94
Fat (kg) -2.53 -0.375 0.95
Prot (kg) -2.97 -0.441 1.31
Fertility Sub Index 5.94
Calving Interval (days) -3.58 -1.459 5.22
Survival (%) 0.64 1.117 0.72
Calving Sub Index 0.90
Gestation Length (days) -0.98 -0.919 0.90
Beef Sub Index 0.59
Carcass Weight (kg) -2.30 -0.528 1.21
Age of Slaughter (days) 1.44 -0.432 -0.62
Maintenance Sub Index Maint. Sub Index 3.10
Live WT (kg) -10.10 -0.307 3.10
Total Carbon Sub Index 13.72

* Based on an €80/tonne carbon price