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 3.62
Milk (kg) -76.00 -0.014 1.06
Fat (kg) -5.54 -0.375 2.08
Prot (kg) -1.09 -0.441 0.48
Fertility Sub Index 6.19
Calving Interval (days) -2.72 -1.459 3.97
Survival (%) 1.99 1.117 2.22
Calving Sub Index 3.81
Gestation Length (days) -4.14 -0.919 3.81
Beef Sub Index 1.25
Carcass Weight (kg) -3.60 -0.528 1.90
Age of Slaughter (days) 1.50 -0.432 -0.65
Maintenance Sub Index Maint. Sub Index 5.40
Live WT (kg) -17.60 -0.307 5.40
Total Carbon Sub Index 20.27

* Based on an €80/tonne carbon price