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 3.18
Milk (kg) -102.00 -0.014 1.43
Fat (kg) -2.05 -0.375 0.77
Prot (kg) -2.22 -0.441 0.98
Fertility Sub Index 2.05
Calving Interval (days) -1.24 -1.459 1.81
Survival (%) 0.22 1.117 0.25
Calving Sub Index 0.35
Gestation Length (days) -0.38 -0.919 0.35
Beef Sub Index 0.99
Carcass Weight (kg) -4.70 -0.528 2.48
Age of Slaughter (days) 3.45 -0.432 -1.49
Maintenance Sub Index Maint. Sub Index 3.65
Live WT (kg) -11.90 -0.307 3.65
Total Carbon Sub Index 10.22

* Based on an €80/tonne carbon price