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The grey-on-white breeding warning (and what a DNA test changes)

Why a grey-with-white pairing asks you to acknowledge a warning, and how a negative DNA result clears it.

When you log a mating between a grey animal and a white animal, AlpacaKeep shows a warning and asks you to tick an acknowledgement before you can save. This is a gentle heads-up, not a block. You can still record the mating once you have seen it.

Why the warning appears

Some grey and white coat colors carry genes that, when paired the wrong way, raise the risk of a non-viable cria. Breeders call this the lethal white or cryptic grey risk. The warning makes sure you have considered it before you commit the pairing. It does not mean the mating is wrong, only that you should go in with your eyes open.

Watch out. The warning is about the cria's genetics, not the parents' health. Both parents can be perfectly healthy and still carry a color gene worth flagging.

What a DNA test changes

A coat-genetics DNA test can show that an animal does not carry the gene behind the risk. When you record a negative result for that animal, AlpacaKeep can clear the color caution for it, because the lab has ruled out the worry the warning was flagging.

  • A negative DNA result is the one that clears the caution.
  • A carrier, pending, or inconclusive result does not clear it. The warning stays so you keep the risk in view.

Good to know. Record an animal's coat-genetics result on its profile. A cleared animal then shows a positive note instead of the caution when you plan a pairing.

This article keeps the biology light on purpose. For the full story on coat-color crosses and what each result means for your matings, see the coat-genetics guide.

  • Log a mating
  • Inbreeding (COI): how closely related are two animals?
  • The mating recommender: how matches are ranked

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