Aquaponics Digest - Sun 04/30/00 




Message   1: Re: fish food from cassava
             from Tony Cooper 

Message   2: Re: fish food from cassava
             from "Melvin Landers" 

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| Message 1                                                           |
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Subject: Re: fish food from cassava
From:    Tony Cooper 
Date:    Mon, 01 May 2000 10:42:53 -0700

 Melvin Landers wrote:

> Hi everyone,
>    It has been rather slow. I know it is spring and everyone is buisy. I =
> have a question for you from a missionary in Nothern Thailand by the =
> name of David Crist. I refered him to Dr. Rakocy, but, I thought I would =
> bring it up to the rest of the list for your input as well. He wants to =
> get a recipe for using soybean meal, rice hulls and cassava for use as =
> feed for pond reared fish. I would guess that the casava must be used as =
> a binder. It would provide no protien to the mix. I don't know what =
> species he is dealing with, but, I will try to find out.

Hi Melvin,
Its my understanding that cassava root and leaves are quite low in
protein and therefore not really suitable for fish feed which is
generally around 25%-30% protein.
You can increase the protein content by direct fermentation, see patent
# 4081557 on the IBM patent server.
see also:
http://www.ricestraw.org/abstracts/nutrients0005.html
http://www.unu.edu/unupress/food/UNU06/begin.htm
http://www.ejb.org/content/vol1/issue3/full/9/Index.html

Perhaps  Mr. Crist can get help from the local university on doing some
trials.
If he has access to ponds where Lemmna [duckweed] grows wild he can just
dry this and feed it directly to the fish. My tilapia love it and it is
high in protein.

Hope this helps
Tony Cooper.

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| Message 2                                                           |
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Subject: Re: fish food from cassava
From:    "Melvin Landers" 
Date:    Sun, 30 Apr 2000 22:26:34 -0500

Dear Tony,
   Thanks for the information. I will pass it along to ECHO. You are correct
in your comment about Cassava, The root is almost entirely composed of
carbohydrates. I think that is why the are wanting to use the soybean meal
as well. Thanks forn the sites as well.
melvin landers
-----Original Message-----
From: Tony Cooper 
To: aquaponics@townsqr.com 
Date: Sunday, April 30, 2000 9:12 PM
Subject: Re: fish food from cassava

>
>
> Melvin Landers wrote:
>
>> Hi everyone,
>>    It has been rather slow. I know it is spring and everyone is buisy. I
=
>> have a question for you from a missionary in Nothern Thailand by the =
>> name of David Crist. I refered him to Dr. Rakocy, but, I thought I would
=
>> bring it up to the rest of the list for your input as well. He wants to =
>> get a recipe for using soybean meal, rice hulls and cassava for use as =
>> feed for pond reared fish. I would guess that the casava must be used as
=
>> a binder. It would provide no protien to the mix. I don't know what =
>> species he is dealing with, but, I will try to find out.
>
>
>Hi Melvin,
>Its my understanding that cassava root and leaves are quite low in
>protein and therefore not really suitable for fish feed which is
>generally around 25%-30% protein.
>You can increase the protein content by direct fermentation, see patent
># 4081557 on the IBM patent server.
>see also:
>http://www.ricestraw.org/abstracts/nutrients0005.html
>http://www.unu.edu/unupress/food/UNU06/begin.htm
>http://www.ejb.org/content/vol1/issue3/full/9/Index.html
>
>Perhaps  Mr. Crist can get help from the local university on doing some
>trials.
>If he has access to ponds where Lemmna [duckweed] grows wild he can just
>dry this and feed it directly to the fish. My tilapia love it and it is
>high in protein.
>
>Hope this helps
>Tony Cooper.
>
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