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 1.56
Milk (kg) -12.00 -0.014 0.17
Fat (kg) -0.71 -0.375 0.27
Prot (kg) -2.56 -0.441 1.13
Fertility Sub Index 4.65
Calving Interval (days) -1.48 -1.459 2.16
Survival (%) 2.23 1.117 2.49
Calving Sub Index -1.05
Gestation Length (days) 1.14 -0.919 -1.05
Beef Sub Index 0.42
Carcass Weight (kg) 0.60 -0.528 -0.32
Age of Slaughter (days) -1.70 -0.432 0.73
Maintenance Sub Index Maint. Sub Index 1.44
Live WT (kg) -4.70 -0.307 1.44
Total Carbon Sub Index 7.03

* Based on an €80/tonne carbon price