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 4.08
Milk (kg) -4.00 -0.014 0.06
Fat (kg) -9.47 -0.375 3.55
Prot (kg) -1.08 -0.441 0.48
Fertility Sub Index 3.14
Calving Interval (days) -1.57 -1.459 2.29
Survival (%) 0.76 1.117 0.85
Calving Sub Index -0.13
Gestation Length (days) 0.14 -0.919 -0.13
Beef Sub Index 2.58
Carcass Weight (kg) -7.10 -0.528 3.75
Age of Slaughter (days) 2.71 -0.432 -1.17
Maintenance Sub Index Maint. Sub Index 7.63
Live WT (kg) -24.90 -0.307 7.63
Total Carbon Sub Index 17.30

* Based on an €80/tonne carbon price