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
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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/