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Hi Vicky! Like i explained, inbreeding is good - Sarah's post is exactly what i said to you.

After long periods of inbreeding, often years, fertility is sometimes lowered. When that happens you try to find another breeder who you have supplied with stock in the past, or the breeder you got your original stock from, as the best outcross is one that is related to your mice - there's enough difference in there to revitalise your stock, but it's still related so the lines mix in well.

Mice from unknown, unrelated stock can ruin everything, result in awful looking mice and end your stud completely. Inbreeding is good, outcrossing is bad, very bad. Anyone that is successful in the Fancy will tell you the same thing.

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