Gene
The dwarf gene (Dw) is a deletion at the rabbit HMGA2 gene. One copy makes a true dwarf, about two thirds normal size with an altered head shape; rabbits with no copy are called false dwarfs. Two copies are lethal: the kit, called a peanut, is born about a third normal size and typically dies within days. Size is inherited as an incompletely dominant trait.
One copy shows Dwarf (Dw).
Hobby notation writes the dwarf allele as Dw; research papers write it as dw and the normal allele as Dw.
Two copies cause a lethal dwarf (peanut): the kit is born tiny with a cone-shaped head and small ears and usually dies within a few days; rare longer survival has been reported. Pairing a true dwarf with a verified false dwarf avoids it.
Not every small rabbit carries this gene: other size genes exist, and some rabbits scored as dwarfs in studies had no copy.
Illustrations of typical animals, checked against the sources below. Not photos of DNA-tested animals.
Plan a pairing with Dwarf (Dw)
Example: about 1 in 4 Black, peanut (lethal dwarf) per kit at conception (1/4). These kits are not expected to survive.
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Guides and articles for Dwarf (Dw) rabbit owners.
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Calculators, generators, and guides preset for Dwarf (Dw) rabbit.
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