simple question - simple answer:
a csw with 32 % who is mated with a csw having 28 % do have pups 32 % + 28 % = 60 % : 2 = 30 %.
If this "child" of 30 % will be mated with another csw of 34 % = 64 % : 2 = 32 %.
So again you will never reach zero.
cheers
Angelika
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