Aquaponics Digest - Sun 05/30/99
Message 1: Desalination
from "Alejandro Gallardo"
Message 2: RE: Sources & prices wanted
from Paul V
Message 3: Norse strawberries
from Paul V
Message 4: Re: Organic Aquaculture
from "Sam Levy"
Message 5: Re: Organic Aquaculture
from "Wendy Nagurny"
Message 6: integrated bio systems
from Jose Pelleya
Message 7: Re: Organic Aquaculture
from "Uwe Bruenjes"
Message 8: Re: integrated bio systems
from "Uwe Bruenjes"
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Subject: Desalination
From: "Alejandro Gallardo"
Date: Sun, 30 May 1999 00:29:59 -0600
Hello, guys.
I was wondering if any of you knows about any alternative technology for =
desalination of brackish water (industrial use for obtaining potable =
water), besides stills, reverse osmosis and membranes. I would really =
appreciate it.
Best regards.
Alejandro
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Subject: RE: Sources & prices wanted
From: Paul V
Date: Sun, 30 May 1999 08:22:46 -0400
> How bout price/20 lbs of lettuce?
For hydroponic bibb, green leaf and
red/green leaf lettuce I'm getting $1.00 US
per pound here in South Carolina. I sell to
sandwich shops, caterers, and places that
want to sell a quality salad.
> ... if the price is right.
This guy only wants cheap lettuce. This
isn't part of your market unless you can
convince him that your product is worth the
price difference. Don't come down to his
price, find someone that will pay what you
need to make a profit.
My selling points...
Iceberg turns brown by the end of next day.
More waste with iceberg.
Hydro lettuce is a richer green color.
Better appearance if used for garnish on a
tray.
Salads look better with hydro lettuce.
My hydro lettuce stays fresh longer. My
customers use it up before it wilts or
turns brown. My customers haven't thrown
away my lettuce.
Hydroponic lettuce is cleaner. My
customers rinse it, but there is no grit
from the field that has to be cleaned off.
Lesser chance of E-coli contamination.
It's greenhouse hydroponic. So its better
than organic.
By the way I'm only hydroponic, not
aquaponic.
Paul
Profit is not a four-letter word.
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Subject: Norse strawberries
From: Paul V
Date: Sun, 30 May 1999 08:23:43 -0400
I was talking to a wholesale greenhouse
grower of shrubs who went to an
international conference held in Norway. He
toured a greenhouse that was growing
hydroponic strawberries for Christmas.
He was under the impression that it is a
tradition there to have very sweet
strawberries for Christmas.
Anyone on the list from Norway or know
anything about the variety, growing
techniques, and the profit margins of
Christmas strawberries?
TIA,
Paul
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Subject: Re: Organic Aquaculture
From: "Sam Levy"
Date: Sun, 30 May 1999 08:08:04 PDT
jim--
i believe that both lysine & metionine are available both from specially
bred corn or as crystalline amino acids (although the latter may not meet
organic standards). The problem comes with the oils. Trout, for example,
is quite good at using vegetable oils (and extruded carbohydrate) for
energy. Many other predator species (especially euryhalines--in my
experience) have a dietary requirement for DHA & EPA among their essential
fatty acids--these are not available from any vegetable source (to my
knowledge) and must be supplied by fish meal/fish oil in the diet.
sam
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Subject: Re: Organic Aquaculture
From: "Wendy Nagurny"
Date: Sun, 30 May 1999 11:28:10 -0400
Can chicken and chicken fat be substituted in the carnivorous mix? While
not vegetable matter, it can be easily raised organically.
Wendy
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Subject: integrated bio systems
From: Jose Pelleya
Date: Sat, 29 May 1999 17:38:12 -0600
Hi Uwe:
Can you post the website for that discussion group to join?/
Jose
At 03:33 PM 5/29/99 PDT, you wrote:
>Hi Wendy and others,
>
>some time ago there was a discussion about raising grubs and maggots on
the IBS (integrated bio-systems) list, to which you and probably others
belong. Maybe producing these critters for their inclusion in fish feed
could be a very sensible application. Somebody from that list could tell us
a little more about this culture? And as earthworms could even be raised on
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| Message 7 |
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Subject: Re: Organic Aquaculture
From: "Uwe Bruenjes"
Date: Sun, 30 May 99 17:51:19 PDT
Hi Ted,
thanks for this thorough reply. I have the feeling that diluting the wate=
r would help a lot to control the algal and zooplancton population, thoug=
h that would add other problems, like more space required. But anyway, =
the most interesting part for me was to know which fish could filter the =
feed in the green water directly for their benefit, and that is clear now=
. Let's see what Jim has to add.
Uwe
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| Message 8 |
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Subject: Re: integrated bio systems
From: "Uwe Bruenjes"
Date: Sun, 30 May 99 17:54:47 PDT
Hi Jos=E9,
due to my latest computer crash I lost the subscription info, but remembe=
r that you could contact Jacky Foo at foo@swipnet.se. Maybe other people =
on this list have the correct subscription info handy...
Uwe
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> Hi Uwe:
>
> Can you post the website for that discussion group to join?/
>
> Jose
S&S Aqua Farm, 8386 County Road 8820, West Plains, MO 65775 417-256-5124
Web page http://www.townsqr.com/snsaqua/
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