Maine-Anjou (AMAA) has five registration tiers in SteerJock, ranging from full purebred down to percentage crosses. Which one your animal qualifies for depends on its Maine-Anjou paper percentage and its parentage. Here's how it works.
The Five Tiers
Fullblood Maine-Anjou. The top tier — 100% Maine-Anjou. You get this from a Gen 0 founder (100% Maine) or by breeding two Fullblood parents together. This is the pure end of the breed.
Purebred Maine-Anjou. 87.5% (7/8) or higher Maine-Anjou. Carries forward as 100% for breeding purposes. This is the practical "purebred" most breeders work toward.
High % Maine-Anjou. 75% to 87.4% Maine-Anjou, with at least one registered Maine-Anjou parent. The brown-paper percentage tier just below purebred.
Maine-Angus. A specific Angus composite: 3/8 to 5/8 Maine-Anjou AND 3/8 to 5/8 Angus or Red Angus, with both parents registered. If your animal qualifies as a Maine-Angus, it takes this designation over MaineTainer — it's the more specific cross.
MaineTainer. The percentage tier: 25% to 62.5% Maine-Anjou. This is the catch-all for crosses that aren't Maine-Angus. To register, you need either one registered Maine-Anjou parent at 50%+, or both registered Maine-Anjou parents at 25%+ each.
How the Tiers Stack
The game checks them in order, from purest to most crossed:
- Fullblood → Purebred → High % Maine → Maine-Angus → MaineTainer
So an animal is slotted into the highest tier it qualifies for. A 50% Maine + 50% Angus animal becomes a Maine-Angus (the specific composite wins), while a 50% Maine + 50% Hereford animal becomes a MaineTainer (no Angus, so it falls to the generic tier).
Things to Know
- Maine-Angus beats MaineTainer. When an animal could be either, it registers as Maine-Angus. The Angus composite is the more specific — and more valuable — designation.
- Percentages round to 1/8. Maine-Anjou uses the eighths grid (12.5% steps). 62.5% (5/8) and 75% (3/4) are the adjacent grid points, so there's a clean gap between the top of MaineTainer and the bottom of High % Maine.
- It's paper percent, not genetics. Everything keys off the parents' registration papers, not raw genetic makeup. An unregistered Maine-Anjou contributes 0% on paper. Register your stock first.
Summary: Breed up toward 7/8 for Purebred, or 100% for Fullblood. Cross with Angus/Red Angus in the 3/8–5/8 range for a Maine-Angus. Everything else from 25% to 62.5% Maine registers as a MaineTainer.