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Breeding Tailless Rats
I have been breeding rats and mice for many years. I became very interested in the Tailless, but before I got my first one I looked all over for information about the cute little guys. I couldn’t find anything on Tailless rats in books, or any other publications, so I started asking breeders questions. I still didn’t get a lot of answers. Now, after quite a bit of time I have my own answers, information, and different theories about Tailless rats, and I would like to share a little about them with you.
About Tailless Rats
Tailless rats can be any color. The most common are
Black, Blue, Siamese, Champagne, and Agouti, but you can
breed them in any color if you try. Tailless rats are
distinctive in their total absence of a tail and their
rounder, cobbier body.
When Breeding Tailless rats, it is important to take into
Genetic Mutation
Tailless rats are a genetic mutation. Take into
consideration that the reason they are Tailless is due to a
defect. Because you are breeding for this defect, you have a
much greater chance of having babies with more damaging
defects than you would if you were breeding rats with tails.
Some of these defects include limp tails, many kinds of leg
and spine problems, crooked legs and feet, missing limbs,
paralysis, and many others. If you breed animals with any of
these problems, you will get more of the same.I am not saying that you will always have problems when breeding Tailless rats. In fact, problems are fairly rare. It’s just something to watch out for and to breed against.
Breeding Stock
There are two kinds of breeding stock. The first
type is a tailed rat which has Tailless genes behind it. It
might have a Tailless mother, father, grandparents, etc. The
second type is a rat which is, itself, Tailless.
Breeding Method
My best luck so far has been breeding Tailless males
to females with tails who have Tailless in their background.
I breed this way because Tailless females stay smaller and
most cannot carry their young full-term. Tailless females
also have other skeletal abnormalities which do not help out. Tailless females are more prone to having a very hard time in delivering their kittens. I think this is mostly because of the birthing position. Most normal tailed does sit on their haunches to give birth. Tailless rats do not have a tail to counterbalance themselves, so they cannot sit in this position for long periods of time. There also appears to be a higher frequency of kitten paralysis and abnormalities when their mother is Tailless. You also risk a greater chance of losing your Tailless female in late pregnancy or during birthing.
For the people out there that think you have a greater
chance of having Tailless kittens by breeding Tailless to
Tailless, to my knowledge you don’t. You only have a
greater chance of defects. You also run the risk of losing
your female and her litter if she does get pregnant.
Finally, often female Tailless have a hard time conceiving,
and many are sterile.
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