Chinchilla Genetics

The easiest way to describe the use of this information is to use an example. Let us suppose that I wanted to cross a Brown Velvet with a Pink White. To find the possible results, turn to contents, then find either combination in the list. Click it, and you will be taken to the table describing the mating that I am interested in.

You will see that the number of genetic combinations possible (for colour only !) is 16. This figure is worked out by breaking down the colours involved in the Brown Velvet (Standard, Beige, Black, Brown) and the Pink White (Standard, Beige, White, Pink White), and multiplying them together. In this instance 4x4 = 16. Once this figure is known a 'Punnet Square' is drawn up and all the combinations are worked out.

In this example there are 12 combinations are worked out that appear. They are listed in order of the least to the most appearances in the 'Punnet Square'. If my aim was to try and produce the Homozygous Beige/Black animal, I can see that I have 1 chance in 16, or 6¼ percent chance. As we are talking about chance, it could be the first baby born on the 9th, or the 16th or the 25th etc....

All that is known for sure is that I have a 1 in 16 chance of producing a Homozygous Beige/Black animal. With that in mind I will reject this mating and try another. Using my imginary Brown Velvet I have returned to 'Breeding with the Brown Velvet' and now look ar each mating in turn for the highest percentage chance of the Homozygous Beige/Black. Using the Brown Velvet you will find that the highest chance is 25 percent.

Lethal factor

If you look at 'Brown Velvet mated to Homozygous Beige/Black', you will notice that amongst the possibilities is '25% fatal'. This will NOT mean I will have 25% of my babies born dead or deformed. It means that I would have expected a colour which is not possible because of a lethal gene.

There are two combinations that are not possible. These are :

The foetus for these colours never develops. However, if the female had produced two eggs for fertilazation, the other may be fertilized instead. If this were the case, then my chances of producing a Homozygous Beige/Black would be increased from 2 in 8, to 2 in 8 minus the fatal combination, in this case 2. This leaves with with 2 in 6 or 33 percent chance of breeding the colour that I require.

I hope you find this info useful.

Daniel Smith


Color definitions

Standard

Dark blue grey

Beige

From light Cream to dark Beige with Pink/Red eyes (sometimes know as Champagne).

Black Velvet

Matte black to beautiful shiny black.

White

Creamy to Blue White with Black eyes. May have patches of grey on head or body, or may even be a mixture of grey and white (also known as Mosaic and Silver).

Pink White

Creamy to Blue White with pink ears and pink/red eyes, may have patches of Beige on head and body (also known as Beige/White Mosaic and Starlight).

Black/White cross

Same as for the White, but coloring may show up as Black, other than this animal should have Black stripes on the forepaws.

Brown/White cross

Same as for Pink White, but colour patches may be Brown and the animal should have Brown stripes on the forepaws.

Homozygous Beige

Very light cream color, verging on having a Pink tinge. The eyes are pale Pink in color and the iris appears white, faintly (also known as BLONDE).

Homozygous Beige/Black cross

Caramel in color, the eye has the same appearance as for the Homozygous Beige.

Homozygous Beige/White cross

Very similar in appeance to the Pink White, the eyes will appear the same as for the above.

Homozygous Beige/Black/White cross

Not yet viewed.


Contents

Standard mated to ...

Standard
Beige
Black Velvet
Brown Velvet
White
Pink White
Black/White cross
Brown/White cross
Homozygous Beige
Homozygous Beige / Black cross
Homozygous Beige / White cross
Homozygous Beige / Black / White cross

Beige mated to ...

Standard
Beige
Black Velvet
Brown Velvet
White
Pink White
Black/White cross
Brown/White cross
Homozygous Beige
Homozygous Beige/Black cross
Homozygous Beige/White cross
Homozygous Beige/Black/White cross

Black Velvet mated to ...

Standard
Beige
Black Velvet
Brown Velvet
White
Pink White
Black/White cross
Brown/White cross
Homozygous Beige
Homozygous Beige/Black cross
Homozygous Beige/White cross
Homozygous Beige/Black/White cross

Brown Velvet mated to ...

Standard
Beige
Black Velvet
Brown Velvet
White
Pink White
Black/White cross
Brown/White cross
Homozygous Beige
Homozygous Beige/Black cross
Homozygous Beige/White cross
Homozygous Beige/Black/White cross

White mated to ...

Standard
Beige
Black Velvet
Brown Velvet
White
Pink White
Black/White cross
Brown/White cross
Homozygous Beige
Homozygous Beige/Black cross
Homozygous Beige/White cross
Homozygous Beige/Black/White cross

Pink White mated to ...

Standard
Beige
Black Velvet
Brown Velvet
White
Pink White
Black/White cross
Brown/White cross
Homzoygous Beige
Homozygous Beige/Black cross
Homozygous Beige/White cross
Homozygous Beige/Black/White cross

Black/White cross mated to ...

Standard
Beige
Black Velvet
Brown Velvet
White
Pink White
Black/White cross
Brown/White cross
Homozygous Beige
Homozygous Beige/Black cross
Homozygous Beige/White cross
Homozygous Beige/Black/White cross

Brown/White cross mated to ...

Standard
Beige
Black Velvet
Brown Velvet
White
Pink White
Black/White cross
Brown/White cross
Homozygous Beige
Homozygous Beige/Black cross
Homozygous Beige/White cross
Homozygous Beige/Black/White cross

Homozygous Beige mated to ...

Standard
Beige
Black Velvet
Brown Velvet
White
Pink White
Black/White cross
Brown/White cross
Homozygous Beige
Homozygous Beige/White cross
Homozygous Beige/Black/White cross

Homozygous Beige/Black cross mated to ...

Standard
Beige
Black Velvet
Brown Velvet
White
Pink White
Black/White cross
Brown/White cross
Homozygous Beige
Homozygous Beige/Black cross
Homozygous Beige/White cross
Homozygous Beige/Black/White cross

Homozygous Beige/White cross mated to ...

Standard
Beige
Black Velvet
Brown Velvet
White
Pink White
Black/White cross
Brown/White cross
Homozygous Beige
Homozygous Beige/Black cross
Homozygous Beige/White cross
Homozygous Beige/Black/White cross

Homozygous Beige/Black/White cross

Standard
Beige
Black Velvet
Brown Velvet
White
Pink White
Black/White cross
Brown/White cross
Homozygous Beige
Homozygous Beige/White cross
Homozygous Beige/Black/White cross


Standard mated to :

Standard
Color %
Standard 100
Beige
Color %
Standard 50
Beige 50
Black Velvet
Color %
Standard 50
Black Velvet 50
Brown Velvet
Color %
Standard 50
Brown Velvet 50
White
Color %
Standard 50
White 50
Pink White
Color %
Standard 25
Beige 25
White 25
Pink White 25
Black/White cross
Color %
Standard 25
White 25
Black Velvet 25
Black/White cross 25
Brown/White cross
Color %
Standard 12½
Beige 12½
Black Velvet 12½
White 12½
Brown Velvet 12½
Brown/White cross 12½
Pink White 12½
Black/White cross 12½

Beige mated to ...

Beige
Color %
Standard 25
Homozygous Beige 25
Beige 50
Black Velvet
Color %
Standard 25
Beige 25
Black Velvet 25  
Brown Velvet 25  
Brown Velvet
Color %
Homozygous Beige/Black cross 12½
Homozygous Beige 12½
Black Velvet 12½
Standard 12½
Beige 25
Brown Velvet 25
White
Color %
Standard 25
Beige 25
White 25
Pink White 25
Pink White
Color %
Standard 12½
Homozygous Beige 12½
Homozygous Beige/White cross 12½
White 12½
Beige 25
Pink White 25
Black/White cross
Color %
Brown/White cross 12½
Black/White cross 12½
Brown Velvet 12½
Black Velvet 12½
Pink White 12½
White 12½
Beige 12½
Standard 12½
Brown/White cross
Color %
Homozygous Beige/Black/White cross
Homozygous Beige/Black cross
Black/White cross
Black Velvet
White
Standard
Homozygous Beige 12½
Brown/White cross 12½
Brown Velvet 12½
Pink White 12½
Beige 12½

Black Velvet mated to ...

Black Velvet
Color %
Fatal 25
Standard 25
Black Velvet 50
Brown Velvet
Color %
Beige 12½
Standard 12½
Fatal 25
Brown Velvet 25
Black Velvet 25
White
Color %
Black/White cross 25
White 25
Black Velvet 25
Standard 25
Black/White cross
Color %
White 12½
Standard 12½
Fatal 25
Black/White cross 25
Black Velvet 25
Pink White
Color %
Brown/White cross 12½
Pink White 12½
Brown Velvet 12½
Beige 12½
Black/White cross 12½
White 12½
Black Velvet 12½
Standard 12½
Brown/White cross
Color %
Pink White
White
Beige
Standard
Brown Velvet 12½
Black Velvet 12½
Black/White cross 12½
Brown/White cross 12½
Fatal 25

Brown Velvet mated to ...

Brown Velvet
Color %
Homozygous Beige
Standard
Beige 12½
Black Velvet 12½
Homozygous Beige/Black cross 12½
Brown Velvet 25
Fatal 25
White
Color %
Brown/White cross 12½
Pink White 12½
Black/White cross 12½
White 12½
Brown Velvet 12½
Beige 12½
Black Velvet 12½
Standard 12½
Pink White
Color %
Homozygous Beige Black White cross
Homozygous Beige Black cross
Homozygous Beige White cross
Homozygous Beige
Black Velvet
Black/White cross
White
Standard
Brown Velvet 12½
Brown/White cross 12½
Beige 12½
Pink White 12½
Black/White cross
Color %
Pink White
White
Beige
Standard
Black Velvet 12½
Brown Velvet 12½
Black/White cross 12½
Brown/White cross 12½
Fatal 25
Brown/White cross
Color %
Homozygous Beige/White cross 3 1/8
Standard 3 1/8
White 3 1/8
Homozygous Beige 3 1/8
Beige
Black Velvet
Black/White cross
Pink White
Homozygous Beige/Black cross
Homozygous Beige/Black/White cross
Brown Velvet 12½
Brown/White cross 12½
Fatal 25

White mated to ...

White
Color %
Fatal 25
Standard 25
White 50
Pink White
Color %
Beige 12½
Standard 12½
Fatal 25
Pink White 25
White 25
Black/White cross
Color %
Black Velvet 12½
Standard 12½
Fatal 25
Black/White cross 25
White 25
Brown/White cross
Color %
Brown Velvet
Black Velvet
Beige
Standard
White 12½
Black/White cross 12½
Pink White 12½
Brown/White cross 12½
Fatal 25

Pink White mated to ...

Pink White
Color %
Homozygous Beige
Standard
White 12½
Beige 12½
Homozygous Beige/White cross 12½
Pink White 25
Fatal 25
Black/White cross
Color %
Brown Velvet
Black Velvet
Beige
Standard
White 12½
Pink White 12½
Black/White cross 12½
Brown/White cross 12½
Fatal 25
Brown/White cross
Color %
Homozygous Beige/Black cross 3 1/8
Homozygous Beige 3 1/8
Black Velvet 3 1/8
Standard 3 1/8
Homozygous Beige/Black/White cross
Brown Velvet
Homozygous Beige/White cross
Black/White cross
Beige
White
Pink White 12½
Brown/White cross 12½
Fatal 25

Black/White cross mated to ...

Black/White cross
Color %
Standard
Black Velvet 12½
White 12½
Black/White cross 25
Fatal 43¾
Brown/White cross
Color %
Standard 3 1/8
Beige 3 1/8
Pink White
Brown Velvet
Black Velvet
White
Black/White cross 12½
Brown/White cross 12½
Fatal 43¾

Brown/White cross mated to ...

Brown/White cross
Color %
Standard 1 9/16
Homozygous Beige 1 9/16
Homozygous Beige/Black cross 3 1/8
Homozygous Beige/White cross 3 1/8
Black Velvet 3 1/8
White 3 1/8
Beige 3 1/8
Brown Velvet
Pink White
Black/White cross
Homozygous Beige/Black/White cross
Brown/White cross 12½
Fatal 43¾

Homozygous Beige mated to ...

Standard
Color %
Beige 100
Beige
Color %
Beige 50
Standard 50
Black Velvet
Color %
Beige 50
Brown Velvet 50
Brown Velvet
Color %
Homozygous Beige/Black cross 25
Homozoygous Beige 25
Brown Velvet 25
Beige 25
White
Color %
Pink White 50
Beige 50
Pink White
Color %
Homozygous Beige/White cross 25
Homozygous Beige 25
Pink White 25
Beige 25
Black/White cross
Color %
Brown/White cross 25
Brown Velvet 25
Pink White 25
Beige 25
Brown/White cross
Color %
Homozygous Beige/Black/White cross 12½
Homozygous Beige/Black cross 12½
Homozygous Beige/White cross 12½
Brown/White cross 12½
Homozygous Beige 12½
Brown Velvet 12½
Pink White 12½
Beige 12½
Homozygous Beige
Color %
Homozygous Beige 100
Homozygous Beige/Black cross
Color %
Homozygous Beige 50
Homozygous Beige/Black cross 50
Homozygous Beige/White cross
Color %
Homozygous Beige 50
Homozygous Beige/White cross 50
Homozygous Beige/Black/White cross
Color %
Homozygous Beige 25
Homozygous Beige/Black cross 25
Homozygous Beige/Black/White cross 25
Homozygous Beige/White cross 25

Homozygous Beige/Black cross mated to ...

Standard
Color %
Beige 50
Brown Velvet 50
Beige
Color %
Beige 25
Brown Velvet 25
Homozygous Beige 25
Homozygous Beige/Black cross 25
Black Velvet
Color %
Fatal 25
Beige 25
Brown Velvet 50
Brown Velvet
Color %
Beige 12½
Homozygous Beige 12½
Fatal 25
Brown Velvet 25
Homozygous Beige/Black cross 25
White
Color %
Beige 25
Brown Velvet 25
Pink White 25
Brown/White cross 25
Pink White
Color %
Beige 12½
Brown Velvet 12½
Pink White 12½
Brown/White cross 12½
Homozygous Beige 12½
Homozygous Beige/Black cross 12½
Homozygous Beige/White cross 12½
Homozygous Beige/Black/White 12½
Black/White cross
Color %
Beige 12½
Pink White 12½
Brown Velvet 25
Brown/White cross 25
Fatal 25
Brown/White cross
Color %
Beige
Pink White
Homozygous Beige
Homozygous Beige/White cross
Homozygous Beige/Black cross 12½
Homozygous Beige/Black/White cross 12½
Brown/White cross 12½
Brown Velvet 12½
Fatal 25
Homozygous Beige/Black cross
Color %
Homozygous Beige 25
Fatal 25
Homozygous Beige/Black cross 50
Homozygous Beige/White cross
Color %
Homozygous Beige 25
Homozygous Beige/Black cross 25
Homozygous Beige/White cross 25
Homozygous Beige/Black/White cross 25
Homozygous Beige/Black/White cross
Color %
Homozygous Beige 12½
Homozygous Beige/White cross 12½
Homozygous Beige/Black cross 25
Homozygous Beige/Black/White cross 25
Fatal 25

Homozygous Beige/White cross mated to ...

Standard
Color %
Beige 50
Pink White 50
Beige
Color %
Beige 25
Pink White 25
Homozygous Beige 25
Homozygous Beige/White cross 25
Black Velvet
Color %
Beige 25
Pink White 25
Brown Velvet 25
Brown/White cross 25
Brown Velvet
Color %
Beige 12½
Pink White 12½
Brown Velvet 12½
Brown/White cross 12½
Homozygous Beige 12½
Homozygous Beige/White cross 12½
Homozygous Beige/Black cross 12½
Homozygous Beige/Black/White 12½
White
Color %
Beige 25
Fatal 25
Pink White 50
Pink White
Color %
Beige 12½
Homozygous Beige 12½
Fatal 25
Pink White 25
Homozygous Beige/White cross 25
Black/White cross
Color %
Beige 12½
Brown Velvet 12½
Pink White 25
Brown/White cross 25
Fatal 25
Brown/White cross
Color %
Beige
Brown Velvet
Homozygous Beige/Black cross
Homozygous Beige
Pink White 12½
Brown/White cross 12½
Homozygous Beige/White cross 12½
Homozygous Beige/Black/White cross 12½
Fatal 25
Homozygous Beige/White cross
Color %
Fatal 25
Homozygous Beige 25
Homozygous Beige/White cross 50
Homozygous Beige/Black/White cross
Color %
Homozygous Beige 12½
Homozygous Beige/Black cross 12½
Homozygous Beige/White cross 25
Homozygous Beige/Black/White cross 25
Fatal 25

Homozygous Beige/Black/White cross mated to ...

Standard
Color %
Beige 25
Brown Velvet 25
Pink White 25
Brown/White cross 25
Beige
Color %
Beige 12½
Brown Velvet 12½
Pink White 12½
Brown/White cross 12½
Homozygous Beige 12½
Homozygous Beige/Black cross 12½
Homozygous Beige/White cross 12½
Homozygous Beige/Black/White cross 12½
Black Velvet
Color %
Beige 12½
Pink White 12½
Brown Velvet 25
Brown/White cross 25
Fatal 25
Brown Velvet
Color %
Beige
Pink White
Homozygous Beige
Homozygous Beige/White cross
Brown Velvet 12½
Brown/White cross 12½
Homozygous Beige/Black cross 12½
Homozygous Beige/Black/White cross 12½
Fatal 25
White
Color %
Beige 12½
Brown Velvet 12½
Pink White 25
Brown/White cross 25
Fatal 25
Brown/White cross
Color %
Beige 3 1/8
Homozygous Beige 3 1/8
Pink White
Brown Velvet
Homozygous Beige/White cross
Homozygous Beige/Black cross
Brown/White cross 12½
Homozygous Beige/Black/White cross 12½
Fatal 43¾
Homozygous Beige/Black/White cross
Color %
Homozygous Beige
Homozygous Beige/White cross 12½
Homozygous Beige/Black cross 12½
Homozygous Beige/Black/White cross 25
Fatal 43¾

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