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Crossing AUS strains
Dear Harry,
IMHO I would NOT cross aquarium strain with wild fish for the following
reasons:
#1. Possibility of adding a lethal genetic flaw by adding recessive
genes to a very established gene pool.
#2. As stated the aquarium strain is very robust and lives long. I have
not heard of bent spines or other serious problems with our present
stock. Their vigor and long life span are a very positive asset and I
don't feel confortable tampering with it.
#3. It has been said here many times: Killies live and die in pools of
water with generally no outbreeding for untold generations thus the
question of if inbreeding is dangerous is moot.
#4. To quote Lee Harper:"Unfortunately my strain
of Cap Esterias australe died out because they are so rapid growing and
fast
maturing and grow old so fast that I missed the opportunity to breed the
second generation. Just the opposite of my two aquarium strains of
australe
that take forever to become sexually mature and live for years."
Like the old saying " Don't mess with a good thing" I think that the
possible danger outweights the
gains if any by introducing new genes into a established and proven gene
pool.
#5. Granted that sometimes we see dangerous recessive genes emerge and
cause serious problems. Then I would favor a introduction program to
help maintain the line.
Al Baldwin
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