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 4.81
Milk (kg) -68.00 -0.014 0.95
Fat (kg) -6.62 -0.375 2.48
Prot (kg) -3.13 -0.441 1.38
Fertility Sub Index 1.04
Calving Interval (days) -0.55 -1.459 0.80
Survival (%) 0.21 1.117 0.23
Calving Sub Index -1.50
Gestation Length (days) 1.63 -0.919 -1.50
Beef Sub Index -2.54
Carcass Weight (kg) 3.50 -0.528 -1.85
Age of Slaughter (days) 1.61 -0.432 -0.70
Maintenance Sub Index Maint. Sub Index -0.18
Live WT (kg) 0.60 -0.307 -0.18
Total Carbon Sub Index 1.63

* Based on an €80/tonne carbon price