Aquaponics Digest - Sat 08/28/99
Message 1: RE: Polyculture
from "Ronald W. Brooks"
Message 2: Re: Taro, floating row covers
from Adriana Gutierrez & Dennis LaGatta
Message 3: Re: Parsley
from Adriana Gutierrez & Dennis LaGatta
Message 4: Re: STATS...
from "Sam Levy"
Message 5: Re: Polyculture
from "Sam Levy"
Message 6: RE: Polyculture
from "Sam Levy"
Message 7: RE: Polyculture
from "Ronald W. Brooks"
Message 8: Re: Taro, floating row covers
from "William Brown"
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Subject: RE: Polyculture
From: "Ronald W. Brooks"
Date: Sat, 28 Aug 1999 01:12:27 -0400
Oops forgot that.
The Tilapia in question are at the 3/4 pound size 6-8 inches or so
Ron
The One Who Walks Two Paths
ICQ 44271371
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Subject: Re: Taro, floating row covers
From: Adriana Gutierrez & Dennis LaGatta
Date: Sat, 28 Aug 1999 06:21:18 -0400
Aloha William,
Can you tell us a little bit about taro? How it is used, what the
markets might be and how is it grown and harvested. How deep a growing
bed does it require?
On a separate subject, a while back you mentioned that you use row
covers for insect control. Do you use it on all crops? How do you
anchor the covers?
Adriana
> I live in Taro land.
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Subject: Re: Parsley
From: Adriana Gutierrez & Dennis LaGatta
Date: Sat, 28 Aug 1999 12:59:08 -0400
Thanks Paula,
The USDA terminal market prices report (for those of you who aren't
familiar with this go to
http://www.ifas.ufl.edu/~MARKETING/fvprod/tmppmenu.html ) shows prices
in the mid-west and on the east coast mostly in the range of
$10-12/carton of 60 bunches. When I look at these reports I assume that
these are the prices that the wholesalers are paying, am I correct?
Then I assume another 30% markup before it goes to local distributors
and another 25-30% when it is resold to the restaurants. So a
restaurant buying from the typical wholesale distribution channels would
pay somewhere around $.30/bunch. I checked with one of our local stores
and a bunch of parsley weighted in at 3 oz. That turns out to be a
little over $1.50 a pound if you match the distributors prices and sell
direct to a restarant. How many pounds can you harvest per square foot
per month?
Pricing in bunches drives me nuts, since there doesn't seem to be a
standard bunch size. Do you sell your parsley by the bunch or by the
pound? Other products that are typically sold by the bunch are dill,
arugula,
cilantro and tarragon.
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Subject: Re: STATS...
From: "Sam Levy"
Date: Sat, 28 Aug 1999 10:02:36 PDT
mike,
just a few thoughts you want to consider when comparing information on
different systems:
Stocking: how much weight is being stocked into the system?
what is the standing crop (total weight of fish being fed)?
what is the yearly production per unit volume of culture tank?
at what weight are juveniles added to the grow out system?
Feeding: what is being fed--protein, lipid (fat), total energy?
how much NITROGEN is being added/day to the system ?(your fish will
excrete as much as 85% of their N intake & yr biofilter has to handle that
amount)
what FCRs are claimed? how does protein efficiency compare (gram
protein fed/gram of added fish weight)?
Aeration: How much aeration is done by physical movement (using pumps to
spray out return water, mixture of water and air (a flood & Drain gravel
system will also provide some aeration of the water) &c?
how are system solids handled (there can be a high oxygen demand here)?
are there mechanical agitators of any kind included?
how are the plant roots oxygenated (assuming aquaponic)?
what is demanded of the blower(s)? airstones only? how many? airlifts
as well?
hope this helps.
sam
>
>Subject: STATS...
>Date: Fri, 27 Aug 1999 10:42:55 +0100
>
>S & S Aqua Farm, Paula and others...
>Could you kindly send me all your archived docs or spots of info on
>tried and tested stocking levels, ratio/fish to growbed, aeration/fish
>etc...
>
>I have no two persons/ paces saying the same thing...
>
>Thanks all, MIke
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Subject: Re: Polyculture
From: "Sam Levy"
Date: Sat, 28 Aug 1999 10:12:11 PDT
ron--
what size were the tilapia? tilapia can be successfully cultured with carps
& mullets.
sam
>
>I took 2 groups of 25 each 4-6 inch blue channel fingerlings and placed
>them
>with Tilapia
>
>Ron
>The One Who Walks Two Paths
>ICQ 44271371
>
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Subject: RE: Polyculture
From: "Sam Levy"
Date: Sat, 28 Aug 1999 10:17:02 PDT
ron--
you might try mixing them younger(smaller)--somewheres in the 10 - 50 gram
range. and of not wildly differing sizes.
sam
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Subject: RE: Polyculture
From: "Ronald W. Brooks"
Date: Sat, 28 Aug 1999 13:31:18 -0400
Sam
Thanks they were really only an experiment . I had access to the catfish
free and after Tom's question a while back I thought I can try to find out.
I am pretty much going to stick with the Tilapia and Oscars. The Oscars are
ready to harvest after 10 months of grow out. As I have the room and such I
try to set up research experiments , try them out to at least get a feel for
where hey should go , then let the students loose on them to see what they
get. Catfish are just to problematical with nets and sharp spines and really
don't like to be handled by students. On the other hand I am currently
getting major fry production with the Tilapia right now. I have had several
of my students come to me and suggest experiments they want to try. That is
I want , to install the urge to learn and experiment
Ron
The One Who Walks Two Paths
ICQ 44271371
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Subject: Re: Taro, floating row covers
From: "William Brown"
Date: Sat, 28 Aug 1999 08:35:56 -1000
Lately with Taro they have developed the Hawaii Diet (which I know little
of) requiring the consumption of large amounts of taro in order to help lose
weight. For the rest of us Taro is used to make a mashed turnip like food
name Poi. Boiled and mashed with mortar and pestle for best quality, eaten
cold and known as 1 finger or 2 finger poi depending on the amount of water
added. Sours slightly with age. A relished dish by locals but becoming
scarce as Taro is used more and more for Taro chips. A local variety of the
potato chip, salt and all. At home we like to add Taro to stews in place of
or with potatos, becomes like a mild turnip with great flavor and texture.
The leaves of certain Taro are used to wrap meats, usually pork and fish and
steamed, making a delicacy known as Lau-Lau, the leaves make your vegetable.
The leaves are also shredded and cooked with squid and coconut milk to make
a spinach looking dish called Squid Luau. You can see why the Hawaiians
tend to run to large sizes.
For the insect barrier, I was growing cucumbers which needed to be protected
from fruit flies. so I just draped the row cover over the trellis and let
it hang to the ground. The cucumbers where not as green as those grown in
full sun, but the color was still excellent. To harvest I just got under
the cover and worked my way down the rows. Fruit flies are easily confused
so it worked well. I would like to find something more durable as row cover
is easy to tear and snag, otherwise results were very satisfactory. It was
more of an experiment to see if the cukes would set fruit and grow while
being protected. Like Fla we have a heat problem during the summers (though
not as severe) and fungus trouble year round. So air-circulation is one of
my vital concerns.
William Brown mahiwai@cmpmail.com
----- Original Message -----
From: Adriana Gutierrez & Dennis LaGatta
To:
Sent: Saturday, August 28, 1999 12:21 AM
Subject: Re: Taro, floating row covers
> Aloha William,
>
> Can you tell us a little bit about taro? How it is used, what the
> markets might be and how is it grown and harvested. How deep a growing
> bed does it require?
>
> On a separate subject, a while back you mentioned that you use row
> covers for insect control. Do you use it on all crops? How do you
> anchor the covers?
>
> Adriana
>
>
> > I live in Taro land.
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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