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 9.66
Milk (kg) -169.00 -0.014 2.37
Fat (kg) -3.45 -0.375 1.29
Prot (kg) -13.59 -0.441 6.00
Fertility Sub Index 2.01
Calving Interval (days) -0.95 -1.459 1.39
Survival (%) 0.56 1.117 0.63
Calving Sub Index 0.11
Gestation Length (days) -0.12 -0.919 0.11
Beef Sub Index 0.26
Carcass Weight (kg) -2.50 -0.528 1.32
Age of Slaughter (days) 2.46 -0.432 -1.06
Maintenance Sub Index Maint. Sub Index 0.25
Live WT (kg) -0.80 -0.307 0.25
Total Carbon Sub Index 12.29

* Based on an €80/tonne carbon price