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 5.05
Milk (kg) -27.00 -0.014 0.38
Fat (kg) -7.17 -0.375 2.69
Prot (kg) -4.51 -0.441 1.99
Fertility Sub Index 2.94
Calving Interval (days) -1.50 -1.459 2.19
Survival (%) 0.67 1.117 0.75
Calving Sub Index -0.40
Gestation Length (days) 0.44 -0.919 -0.40
Beef Sub Index 1.69
Carcass Weight (kg) -3.70 -0.528 1.95
Age of Slaughter (days) 0.61 -0.432 -0.26
Maintenance Sub Index Maint. Sub Index -0.67
Live WT (kg) 2.20 -0.307 -0.67
Total Carbon Sub Index 8.60

* Based on an €80/tonne carbon price