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 3.35
Milk (kg) -45.00 -0.014 0.63
Fat (kg) -3.17 -0.375 1.19
Prot (kg) -3.48 -0.441 1.54
Fertility Sub Index 1.40
Calving Interval (days) -1.02 -1.459 1.49
Survival (%) -0.08 1.117 -0.09
Calving Sub Index -1.41
Gestation Length (days) 1.53 -0.919 -1.41
Beef Sub Index -2.44
Carcass Weight (kg) 2.70 -0.528 -1.42
Age of Slaughter (days) 2.35 -0.432 -1.01
Maintenance Sub Index Maint. Sub Index 1.81
Live WT (kg) -5.90 -0.307 1.81
Total Carbon Sub Index 2.72

* Based on an €80/tonne carbon price