. If I remember
> correctly, F1, F2, F3, etc is used when you are
> working entirely within one lineage.
F1, F2 and so on are used to determine the depth-in-which the animal has
been captive produced. When breeding African cichlids many people prefer F0
to get genetics un-diluted by inbreeding. What this means: If you have 2
pairs of wild caught fish. They would each produce F1 offspring. If you took
an F1 form brood A and an F1 from brood B and breed them together you would
get F2 offspring.
I am not sure how to answer the original question though. Wild caught is the
only F0 that I am aware of, so you could never captive produce F0's.
When you
> introduce new genetic lines, you start again with F1.
>
> Also, if I remember, using the terms F1, F2, etc. is
> really most useful when you are trying to determine
> the genetic makeup of a particular line, to see if it
> has recessive genes in it, etc. But, then again,
> maybe it's just that that's all we used the terms for
> in school.
>
> -Laura
>
> >
> > Date: Sat, 02 Apr 2005 09:46:44 -0800
> > From: Mysteryman <bestfish-in-alaweb.com>
> > Subject: NANFA-L-- Stupid question
> >
> > I hate to have to ask this, but when F-1's are
> > crossed with new F-O's,
> > are the resulting progeny F-1's or F-1.5's or F-2's
> > ?
> > I'm supposed to know this one, but I can't seem to
> > remember much of
> > anything these days.
> >
> > My F-1 Flagfin Shiners, all females, are now all fat
> > with roe. I caught
> > some new F-0's for a guy who wants some, ( I can
> > send them, now ) and
> > now I have some males. I was just wondering what I
> > would call any
> > resulting fry if I were to cross a new male to my
> > own females.
> > /
>
>
>
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