AlpacaKeepInbreeding is just a measure of how closely related two animals are. AlpacaKeep shows it as a percentage called the COI, which stands for coefficient of inbreeding. 0% means the pair share no recent ancestors. The higher the number, the more ancestors they share, like cousins sharing grandparents.
How to read the number
The COI looks at both animals' family trees and counts how much they overlap. A pairing of two unrelated animals scores near 0%. A pairing where the parents share close family scores higher. AlpacaKeep sorts the result into three buckets with their own colors:
For example, mating two animals who share one great-grandparent lands around 3%, which is Safe. Mating half-siblings lands around 12.5%, which is Close mating.
Good to know. AlpacaKeep walks the pedigree as deep as your farm's pedigree-depth setting allows (in Settings → Farm profile), so a deeper tree gives a more complete number.
Where you see it
- On the mating recommender cards, when you plan a pairing on the Breeding hub's Plan tab.
- As a badge on an animal's public sale page, when both of its parents are linked animals on your farm.
📷 Screenshot: a recommender card with the COI badge colored for Linebreeding.
A higher COI is not automatically bad. Some breeders use light linebreeding on purpose. It just means you should know the relationship before you breed. For the husbandry side of why it matters and how to manage it, see the breeding guide.
Related
- The mating recommender: how matches are ranked
- Breeding from mating to cria: the whole cycle