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 4.91
Milk (kg) -159.00 -0.014 2.23
Fat (kg) -3.03 -0.375 1.13
Prot (kg) -3.51 -0.441 1.55
Fertility Sub Index 5.89
Calving Interval (days) -2.46 -1.459 3.59
Survival (%) 2.06 1.117 2.30
Calving Sub Index 3.81
Gestation Length (days) -4.14 -0.919 3.81
Beef Sub Index 1.10
Carcass Weight (kg) -2.20 -0.528 1.16
Age of Slaughter (days) 0.13 -0.432 -0.06
Maintenance Sub Index Maint. Sub Index 5.00
Live WT (kg) -16.30 -0.307 5.00
Total Carbon Sub Index 20.71

* Based on an €80/tonne carbon price