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Chumcreek/Jr Brown Sugar

Chumcreek/Jr Brown Sugar

Breeder
not recorded
Sire
Malung Jim Beam
Dam
Chumcreek Possum
Gender
Female
Date of birth
not recorded
Country of birth
Australia

Genetic indicators
The three figures are recalculated for the generations chosen.

COI — inbreeding

25%

High. Common ancestor: Malung Jim Beam.

AVK — distinct ancestors

27.4%

17 distinct ancestors out of 62 possible. Among known ancestors only: 53.1%.

Pedigree completeness

51.6%

30 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 1

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

AncestorSire's sideDam's sideShare of the COI
Malung Jim Beam ♂ gen. 1 gen. 2 25%
COI over 5 generations25%

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.

Chumcreek/Jr Brown SugarMalung Jim BeamMalung Jim BeamChumcreek PossumChumcreek Possum

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 + FA), 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.

Read more: how the COI is calculated

Pedigree

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

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

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Offspring and relatives

Grouped by litter, with both parents at the top of each block. Click to see the puppies of a dog.

Direct offspring 2 litters · 2 dogs

Litter of 20 November 1994Coleann Brown Lagar×Chumcreek/Jr Brown Sugar1 ♂
Litter date not recordedColeann Brown Lagar×Chumcreek/Jr Brown Sugar1 ♀

Full siblings 1 litter · 1 dog

Litter date not recordedMalung Jim Beam×Chumcreek Possum1 ♂

Half-siblings, sire's side 5 litters · 9 dogs

Litter date not recordedMalung Jim Beam×Tiroan/Jr Oakley1 ♂
Litter date not recordedMalung Jim Beam×Beacon Hills Muffin3 ♀
Litter date not recordedMalung Jim Beam×Pinjarra Bonnie1 ♂ · 1 ♀
Litter date not recordedMalung Jim Beam×Koonda Kever1 ♂ · 1 ♀
Litter date not recordedMalung Jim Beam×dam not recorded1 ♂