Baylock Rob Roy

Breeder: not recorded
Sire: Coleann Brown Lagar
Dam: Chumcreek/Jr Brown Sugar
Gender: Male
Date of birth: 20 November 1994
Country of birth: Australia

Genetic indicators

COI — inbreeding

21.88%

High. Common ancestors: Malung Jim Beam, Beacon Hills Muffin.

AVK — distinct ancestors

38.7%

24 distinct ancestors out of 62 possible. Among known ancestors only: 52.2%.

Pedigree completeness

74.2%

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

Value for the breed's diversity

Rare pedigree — rarer than 99% of the Jack Russells born in the last 15 years (since 2012)

How often its ancestors (over 6 generations) appear in the pedigrees of the 297 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 2

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 Jim Beam ♂	gen. 3 ×2	gen. 2gen. 3	18.75%
Beacon Hills Muffin ♀	gen. 3	gen. 3	3.13%
COI over 5 generations			21.88%

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

The whole tree fits on screen. Pinch to zoom in on a dog.

Parents

Grandparents

Great-grandparents

Coleann Brown Lagar ♂

Australia

Australian UCH, AUSTRALIAN CHAMPIONGayregal Fire Water ♂White & Tan

Australia

AU CHMalung Jim Beam ♂White & Tan

Australia Pinjarra Bonnie ♀

Australia Chumcreek/Jr Shandy ♀White & Tan

Australia

AU CHMalung Jim Beam ♂White & Tan

Australia Beacon Hills Muffin ♀

Australia

Chumcreek/Jr Brown Sugar ♀

Australia

AU CHMalung Jim Beam ♂White & Tan

Australia

Dubbsville Bud ♂White & Tan

Australia

Malung Morag ♀White & Tan

Australia Chumcreek Possum ♀

Australia

AU CHMalung Jim Beam ♂White & Tan

Australia Beacon Hills Muffin ♀

Australia

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

Malung Jim Beam ×4
Beacon Hills Muffin ×2

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Generations Photos

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