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 1.65
Milk (kg) -109.00 -0.014 1.53
Fat (kg) 1.19 -0.375 -0.45
Prot (kg) -1.30 -0.441 0.57
Fertility Sub Index 4.27
Calving Interval (days) -1.52 -1.459 2.22
Survival (%) 1.84 1.117 2.06
Calving Sub Index 3.73
Gestation Length (days) -4.06 -0.919 3.73
Beef Sub Index -3.85
Carcass Weight (kg) 5.40 -0.528 -2.85
Age of Slaughter (days) 2.31 -0.432 -1.00
Maintenance Sub Index Maint. Sub Index -1.29
Live WT (kg) 4.20 -0.307 -1.29
Total Carbon Sub Index 4.52

* Based on an €80/tonne carbon price