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 8.59
Milk (kg) -140.00 -0.014 1.96
Fat (kg) -9.70 -0.375 3.63
Prot (kg) -6.79 -0.441 3.00
Fertility Sub Index 2.69
Calving Interval (days) -1.33 -1.459 1.94
Survival (%) 0.67 1.117 0.75
Calving Sub Index -2.64
Gestation Length (days) 2.87 -0.919 -2.64
Beef Sub Index -4.30
Carcass Weight (kg) 6.80 -0.528 -3.59
Age of Slaughter (days) 1.66 -0.432 -0.72
Maintenance Sub Index Maint. Sub Index -0.80
Live WT (kg) 2.60 -0.307 -0.80
Total Carbon Sub Index 3.54

* Based on an €80/tonne carbon price