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 4.05
Milk (kg) -144.00 -0.014 2.02
Fat (kg) -4.80 -0.375 1.80
Prot (kg) -0.54 -0.441 0.24
Fertility Sub Index 4.34
Calving Interval (days) -2.57 -1.459 3.75
Survival (%) 0.53 1.117 0.59
Calving Sub Index 2.90
Gestation Length (days) -3.16 -0.919 2.90
Beef Sub Index -1.95
Carcass Weight (kg) 2.70 -0.528 -1.42
Age of Slaughter (days) 1.22 -0.432 -0.53
Maintenance Sub Index Maint. Sub Index -2.08
Live WT (kg) 6.80 -0.307 -2.08
Total Carbon Sub Index 7.26

* Based on an €80/tonne carbon price