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1 - Mutation Chinchilla Breeders Association

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1 - Mutation Chinchilla Breeders Association Powered By Docstoc
					1. White – The first dominant mutation that occurred in the chinchilla. It cannot be obtained
   in the homozygous state because two of the dominant genes are lethal when they occur
   in the same animal. Depending on the color that these animals are bred with, different
   manifestations will show themselves in the offspring. In the silvering pattern, there is a
   very short, dark tip on the end of many of the fur fibers and there is blue underfur instead
   of white underfur. These are all manifestations of the same white gene and depend
   basically upon the type of standard veiling and fur characteristics to which the white is
   bred.
        a. In a show, white chinchillas are broken up into the following categories:
                        1. Predominantly white
                        2. White with dark guard hairs
                        3. White with pink/beige markings
                        4. White mosaic/ broken pattern
                        5. Silver (has color in underfur and a bar)
2. Sapphire - A recessive mutation which has a crystal clear blue veiling, a white bar and a
   soft light blue under fur. The animal is a little bit small and lacks some in cushion as an
   animal but seems to make a well-cushioned pelt. It has pink ears and a light colored tail.
        a. In a show, sapphire chinchillas are usually broken up into the following
           categories:
                        1. Light
                        2. Medium
                        3. Dark
                        4. Extra Dark
                        5. Wrap
3. Violet - A beautiful lavender or lavender/violet color with nice even veiling, good clear
   white belly, nice texture and good overall appearance. This animal is quite docile and
   quite fertile and it is possible to mix it with other color genes without any genetic
   problems. Besides being very well-veiled and having a nice texture, it has beautiful
   lavender type underfur and a pale lavender bar.
        a. In a show, sapphire chinchillas are usually broken up into the following
           categories:
                        1. Light
                        2. Medium
                        3. Dark
                        4. Extra Dark
                        5. Wrap
4. Beige – The second dominant mutation to occur. This mutation is a complete dominant
   with no lethal factor and a homozygous animal can occur. The homozygous animal has a
   much lighter and finer type of fur than the heterozygous beige. The beige have a very
   pleasant appearance, are good breeders and have good leather. Its eyes can vary from a
   very pale pink to a ruby color. Generally, the darker heterozygous beige has the darker
   eyes and the homozygous animal has the lighter eyes.
        a. In a show, sapphire chinchillas are usually broken up into the following
           categories:
                            1. Light
                            2. Medium
                            3. Dark
                            4. Extra Dark
                            5. Extra Dark Beige (Beige/Black cross)
                            6. Tans/Chocolates/Wraps
    5. Naturalle - In chinchillas, the standard color is a pearl-blue-gray in 7 different color
       variations ranging from extra light to extra dark. This animal is sometimes known as a
       Standard. The standard has an agouti-fur pattern meaning that it has a tip, bar and
       underfur. All agouti- patterned animals are lighter colored on their under parts.
            a. In a show, sapphire chinchillas are usually broken up into the following
               categories:
                            1. Light Medium
                            2. Medium
                            3. Dark Medium
                            4. Medium Dark
                            5. Dark
                            6. Extra Dark
    6. Charcoal/Ebony – I find no real definition of ebony on that page
            a. In a show, sapphire chinchillas are usually broken up into the following
               categories:
                            1. Light
                            2. Medium
                            3. Dark
                            4. Extra Dark

Black - This third dominant mutation in an incomplete or spot dominant. This peculiar type of
dominant was named for the spot on the original animal's head. By breeding with well, deep-
veiled animals, the dominant black spot increased to extend over the back of the animal to what
we now know today. The animal has a very bright appearance and a clear white belly.

The Black is not as prolific a breeder on an average as the beige or standard animals. Black bred
to Standard produces only 50% black and well-veiled standards must be used in breeding to
produce the proper extent of mutation coverage in the offspring. A lethal factor is present which
will result in 1/4 dead although breeding of Black to Black can be done. A homozygous black can
never be expected to occur but, due to breakage of chromosomes, occasionally a true dominant
Black may occur.
            b. In a show, sapphire chinchillas are usually broken up into the following
               categories:
                            1. Light
                            2. Medium
                            3. Dark
                            4. Extra Dark

				
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posted:9/20/2011
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