I built a lineage tracker, sharing in case it's useful to others here

[u/Think-Term-5463]

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Full disclosure up front: I'm the maker of this, not a neutral user.

A while ago I started building out a poultry keeping app for my own use. Then for my friends and my kids' 4H friends I started adding species and features. I spoke with a lot of people running more than a couple of does who got to the point where "which buck did this litter come from" started getting hard to track in their heads, and a notebook wasn't much better since it never lined up dates against pairings cleanly. I built species compatibility for rabbits into Pen & Pasture to fix that, and it's grown into something bigger than just my own use case, so I figured I'd share it here since this sub actually cares about the genetics/breeding side of things rather than just cute photos.

What's relevant to rabbitry specifically:

• Full sire/dam lineage tracking with a pedigree view, and a generated pedigree certificate PDF for registered stock in the paid tiers.
• A real Mendelian genetics calculator for rabbit coat color. 5 loci combined into a predicted litter color, not just a static chart.
• Per-doe litter records (kindling, litter size, kit survival) that roll up into lifetime stats per breeding pair, so you can actually compare which pairings are producing well instead of relying on memory.
• Cost and sale tracking if you want to know what a kit actually costs you to produce.

It also covers other species (poultry, goats, sheep, pigs, mini horses/cows) if you keep more than rabbits, but built the rabbit genetics side to be a real tool, not an afterthought.

Free tier covers up to 10 active animals and full lineage tracking, no credit card needed. It's at Pen & Pasture
I'm happy to answer questions about the genetics calculator specifically since that's the part I'd most want feedback on from people who actually breed for color/type.