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 8.32
Milk (kg) -123.00 -0.014 1.72
Fat (kg) -10.22 -0.375 3.83
Prot (kg) -6.27 -0.441 2.77
Fertility Sub Index 4.72
Calving Interval (days) -2.52 -1.459 3.68
Survival (%) 0.93 1.117 1.04
Calving Sub Index -1.45
Gestation Length (days) 1.58 -0.919 -1.45
Beef Sub Index -2.21
Carcass Weight (kg) 0.80 -0.528 -0.42
Age of Slaughter (days) 4.15 -0.432 -1.79
Maintenance Sub Index Maint. Sub Index 2.42
Live WT (kg) -7.90 -0.307 2.42
Total Carbon Sub Index 11.79

* Based on an €80/tonne carbon price