Carisbrooke Oh Jay

Breeder: not recorded
Sire: Malung Orinoco
Dam: Michaelmas Marguerite
Gender: Male
Date of birth: not recorded
Country of birth: Australia

Colour: Tricolour

Genetic indicators

COI — inbreeding

18.75%

High. Common ancestors: Malung Orinoco, Dubbsville Bud, Malung Morag.

AVK — distinct ancestors

46.8%

29 distinct ancestors out of 62 possible. Among known ancestors only: 69%.

Pedigree completeness

67.7%

20 empty slots. The AVK takes them into account, so read both figures together.

Value for the breed's diversity

Rare pedigree — rarer than 87% of the Jack Russells born in the last 15 years (since 2012)

How often its ancestors (over 8 generations) appear in the pedigrees of the 285 recent dogs: using dogs with a rare pedigree helps keep diversity in the breed. Over: 6 generations 8 generations 10 generations

Common ancestors and how they connect 3

Over 5 generations: each ancestor found on both the sire's and the dam's side, and what it adds to the COI.

Ancestor	Sire's side	Dam's side	Share of the COI
Malung Orinoco ♂	gen. 1	gen. 3	12.5%
Dubbsville Bud ♂	gen. 2	gen. 4 ×2	3.13%
Malung Morag ♀	gen. 2	gen. 4 ×2	3.13%
COI over 5 generations			18.75%

How the lines connect

Only the dogs that lead to a common ancestor are drawn. Each coloured line goes from a common ancestor down to its descendants. Click a dog to open its page.

Sire's side Dam's side Coloured circles: common ancestors, same colours as in the pedigree

How these figures are calculated

COI — Wright's formula: F = Σ (½)^n₁+n₂+1 × (1 + F_A), summed over every path through a common ancestor A. The number of generations must be fixed for two dogs to be comparable: a more complete pedigree mechanically raises the figure.

AVK — distinct ancestors divided by the theoretical number of ancestors. Over 5 generations there are 62 possible slots. 100% means no ancestor appears twice.

Completeness — the share of slots actually filled in. The AVK is misleading without it: a half-empty pedigree shows a low AVK even with no inbreeding at all, simply because data is missing.

Pedigree

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Parents

Grandparents

Great-grandparents

AU CHMalung Orinoco ♂White & Tan

Australia

Dubbsville Bud ♂White & Tan

Australia Fernhill Henry ♂

Australia Dubbsville Meg ♀

Australia

Malung Morag ♀White & Tan

Australia

Koonda Beau ♂

Australia Malung Mimi ♀

Australia

Michaelmas Marguerite ♀

Australia

Pickwick Major Tom ♂

Australia

Malung Laird of Joyreve ♂Dysons Molly ♀

Australia

Vanderbilt Miss Daisy ♀

Australia

AU CHMalung Orinoco ♂White & Tan

Australia Darlo Consuelo ♀

Same colour, same dog: these ancestors appear several times in this pedigree.

Malung Orinoco ×2

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Generations Photos

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