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 5.16
Milk (kg) -92.00 -0.014 1.29
Fat (kg) -8.62 -0.375 3.23
Prot (kg) -1.45 -0.441 0.64
Fertility Sub Index 1.55
Calving Interval (days) -0.59 -1.459 0.86
Survival (%) 0.62 1.117 0.69
Calving Sub Index 0.30
Gestation Length (days) -0.33 -0.919 0.30
Beef Sub Index -2.37
Carcass Weight (kg) 2.80 -0.528 -1.48
Age of Slaughter (days) 2.08 -0.432 -0.90
Maintenance Sub Index Maint. Sub Index -0.06
Live WT (kg) 0.20 -0.307 -0.06
Total Carbon Sub Index 4.58

* Based on an €80/tonne carbon price