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Re: [Killietalk] hybrid vigour
That's why I take fishbody oil tabs every morning. I wonder if I can feed them
to my Daphnia.
"Robert Goldstein"
<rgoldstein at rjgacarolina_com> To: "killifish discussion list" <killietalk at aka_org>
Sent by: cc:
killietalk-bounces+jim.clark.b=bayer. Subject: Re: [Killietalk] hybrid vigour
com at aka_org
06/10/2004 11:54 AM
Please respond to killifish
discussion list
Yes. HUFAs are Highly Unsaturated Fatty Acids. Certain types (called omega-3
and omega-6) of these fatty acids are needed in the diet (just like
vitamins), because fish cannot synthesize HUFAs from normal diet intake, and
they are important for nerve development and function, and for other
purposes.
----- Original Message -----
From: "Jim Clark" <jim_clark.b at bayer.com>
To: "killifish discussion list" <killietalk at aka_org>
Sent: Thursday, June 10, 2004 2:49 PM
Subject: Re: [Killietalk] hybrid vigour
>
>
>
>
> What are HUFA's? Some kind of Fatty Acid
>
>
>
> "Robert Goldstein"
> <rgoldstein at rjgacarolina_com> To:
"killifish discussion list" <killietalk at aka_org>
> Sent by: cc:
> killietalk-bounces+jim.clark.b=bayer.
Subject: Re: [Killietalk] hybrid vigour
> com at aka_org
>
>
> 06/10/2004 10:58 AM
> Please respond to killifish
> discussion list
>
>
>
>
>
>
> Tony reminded me of another recent publication relevant to fish health.
Many
> of you are familiar with light shock, the sudden exposure to bright light
of
> fish that have been in boxes for a few days. These fish (usually discus
or
> angels, but I've seen this in young banggai cardinals and in clownfish fry
> too) go into tetanus, getting rigid, trembling, their gill plates
extended.
> They fall to the bottom and rarely recover. I've never thought of this in
> terms of anything but an effect of light causing stress-induced mortality.
> However, a recent publication showed that fishes fed a diet rich in HUFAs
> were resistant to light shock. So we see that diet can play an important
> role in how a fish responds to a physical stressor.
>
> ----- Original Message -----
> From: "Tony Terceira" <terceira at ride_ri.net>
> To: "killifish discussion list" <killietalk at aka_org>
> Sent: Thursday, June 10, 2004 1:42 PM
> Subject: RE: [Killietalk] hybrid vigour
>
>
> > At 11:17 AM 6/10/2004 -0600, you wrote:
> > >Gary Elson wrote:
> > >
> > > >
> > > > can anyone point me to online resources or personal observations
> > > > on hybrid
> > > > vigour in population crosses in killies? I'm specifically curious
> > > > about the
> > > > effect such crosses have had on fry growth rates.
> > > >
> > Hi . I think the LAST thing we need to do is play with
> > hybrids. We have worked for over 40 years, keeping populations isolated
> > and not inter breeding them. We have an entire publication devoted to
> > specific collection codes and sites where specific killies were
> > collected....................... I can find no reason other than
> scientific
> > to play with hybridization.
> >
> > Killies are generally very vigors on their own.............
some
> > of the annuals have been in the hobby for over 80 years and they are
doing
> > fine as far as color and growth are concerned.
> >
> >
> > We do not know enough about the concept of species to play with
population
> > hybridization........ I can tell you from early hybridization I did with
> > the bivittatum species group. that results are totally
> > unpredictable.......... Sterile at F1, fertile at F1 then sterile at F2
> > etc........ ..
> >
> > Feed you killies a varied diet with as much live food as
> possible,
> > change water frequently and they will continue to be quite vigors for
many
> > years to come................
> >
> > Tony
> > Tony Terceira
> > Scituate, Rhode Island
> >
> > Visit our Web Site
> > www.thefishwizards.com
> >
> >
> > To join the AKA see http://www.aka.org/pages/join.html
> > Archives are at http://fins.actwin.com/killietalk/
> >
> >
>
>
>
> To join the AKA see http://www.aka.org/pages/join.html
> Archives are at http://fins.actwin.com/killietalk/
>
>
>
>
> To join the AKA see http://www.aka.org/pages/join.html
> Archives are at http://fins.actwin.com/killietalk/
>
To join the AKA see http://www.aka.org/pages/join.html
Archives are at http://fins.actwin.com/killietalk/
To join the AKA see http://www.aka.org/pages/join.html
Archives are at http://fins.actwin.com/killietalk/