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 9.69
Milk (kg) -160.00 -0.014 2.24
Fat (kg) -11.05 -0.375 4.14
Prot (kg) -7.51 -0.441 3.31
Fertility Sub Index 2.89
Calving Interval (days) -1.61 -1.459 2.35
Survival (%) 0.48 1.117 0.54
Calving Sub Index -1.48
Gestation Length (days) 1.61 -0.919 -1.48
Beef Sub Index -2.35
Carcass Weight (kg) 4.70 -0.528 -2.48
Age of Slaughter (days) -0.31 -0.432 0.13
Maintenance Sub Index Maint. Sub Index -1.04
Live WT (kg) 3.40 -0.307 -1.04
Total Carbon Sub Index 7.71

* Based on an €80/tonne carbon price