|
Hi I hope this
mail gets you in good health. I wish to enquire
about the requirements for one to get
certificate for supplying and producing
fingerlings.
What does one needs
to have.
I'm a Kenyan from
siaya county bondo sub County from nyangoma
division
That as I a wait
for your response.
Kind regards
Daniel Abura
0726749114
Sent from Yahoo Mail on
Android
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Today's Topics:
1. Re: Bumps/bubbles inside catfish
fingerlings (Ipade Adeyeye)
2. Invitation to Attend Confirmed
Short Courses June/July 2015
- in South Africa |Namibia
(William Leschen)
----------------------------------------------------------------------
Message: 1
Date: Fri, 15 May 2015 07:14:48 +0100
From: Ipade Adeyeye <ipade@fingerlakes-ng.com>
To: "sarnissa-african-aquaculture@lists.stir.ac.uk"
<sarnissa-african-aquaculture@lists.stir.ac.uk>
Subject: Re: Bumps/bubbles inside
catfish fingerlings
Message-ID: <22F3F99C-018F-4AA0-B29E-F4CE3799DDB7@fingerlakes-ng.com>
Content-Type: text/plain;
charset="utf-8"
Thanks all for all the valuable and
useful information. We will apply the
remedies as suggested. Is there an easy
way to determine when water is super
saturated with gases?
Regard
Ipade
> On 14 May 2015, at 01:42, veverkl@gmail.com
wrote:
>
> Wow, those are some bubbles!
> I agree with James that the causes
he lists can be an explanation. As well,
you can add supersaturation of carbon
dioxide if you are using borehole water.
We can visually see the gas bubbles when
dissolved CO2 is the problem. Remedy is
to greatly aerated or agitate the water
to drive it off. The supersaturation of
gases in general can occur from a leaky
intake from a pump so that there is some
suction of air followed by pressurizing.
Remedy for this is to fix the faulty
intake.
> James also suggests supersaturation
due to high primary production, so that
means supersaturated oxygen. This is
rarely a problem but I have indeed seen
problems from levels of oxygen that
approach 250-300% saturation. Remedy
for this is same as the supersaturated
CO2. Agitate to drive off the excess.
> One mistake people make is when
they think that aeration from a blower
can supersaturate the water with gases.
It cannot if the water is not in a
sealed container. So, in a tank that
doesn’t have a closed cover, the
aeration can only de-supersaturate the
water.
> As James mentioned, if you transfer
fish from cold water that is saturated
with oxygen to warm water, the gasses in
the blood come out of solution and form
bubbles in gill filaments and elsewhere.
That is one reason why it is advised to
acclimate the fish when changing
temperatures. Clarias are very sensitive
to abrupt temperature changes.
>
> Sent from my cheap tablet which
means I am not on office.
> Karen L. Veverica
>
> From: james mugo via
Sarnissa-african-aquaculture <mailto:sarnissa-african-aquaculture@lists.stir.ac.uk>
> Sent: Wednesday, May 13,
2015 4:20 PM
> To: Ipade Adeyeye <mailto:ipade@fingerlakes-ng.com>,
sarnissa-african-aquaculture@lists.stir.ac.uk
<mailto:sarnissa-african-aquaculture@lists.stir.ac.uk>
>
> Have too come across such a problem
not only with catfish fry but also with
ornamental fish both small one and even
bigger ones. From my small experience,
the most probable reason is the super
saturation of air in the water and
especially if the water source is from a
pipe with high pressure within the pipe
or high level of algae in the water and
increased water temperature. I have lost
both catfish fry and also blackmoores,
koicarps, shubunkins and even comets.
>
> James,
> Ornamental Fish AquaFarm,
> Kenya
>
>
>
> On Wednesday, May 13, 2015 11:10
PM, Ipade Adeyeye via
Sarnissa-african-aquaculture <sarnissa-african-aquaculture@lists.stir.ac.uk>
wrote:
>
>
>
> Dear All,
>
> Our 38 day old african catfish
fingerlings have been dying in one
(other tanks are not affected) of our
inside tanks over the last few days. We
have checked our water parameters and
all seem within acceptable ranges. We
do not see anything obvious with the
naked eye on the dead fingerlings.
However we viewed some of the live fish
under the microscope and we noticed the
bumps/bubbles that can be seen on the
attached pictures. We are not sure
whether this is the cause of our
mortality, however we are going through
the process of elimination.
>
> Any ideas what this might be and is
it something we should be worried about?
>
> Thanks for your anticipated
assistance
>
> Ipade
>
>
>
>
>
<IMG-20150513-WA0015.jpeg><IMG-20150513-WA0014.jpeg><IMG-20150513-WA0013.jpeg>
>
>
>
>
<IMG-20150513-WA0014.jpeg><IMG-20150513-WA0013.jpeg><IMG-20150513-WA0015.jpeg>
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Message: 2
Date: Sat, 16 May 2015 14:12:57 +0100
From: William Leschen <william.leschen@stir.ac.uk>
To: sarnissa-african-aquaculture Mailing
List
<sarnissa-african-aquaculture@lists.stir.ac.uk>
Subject: Invitation to Attend Confirmed
Short Courses June/July 2015
- in South Africa |Namibia
Message-ID:
<8ED3F2CA5B78E142B8193376C57330F801183F15498C@EXCH2007.ad.stir.ac.uk>
Content-Type: text/plain;
charset="utf-8"
From: Institute for Capacity Development
[mailto:admin@icdconsult.com]
Sent: 15 May 2015 17:06
To: William Leschen
Subject: [{SPAM?} score 11.9] Invitation
to Attend Confirmed Short Courses
June/July 2015 - in South Africa
|Namibia
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Institute for Capacity Development(ICD)
Invitation to Attend ICD Short Courses
Confirmed Forthcoming Short Courses at
ICD Centres[South Africa| Namibia]: June
- July 2015
Dear Partners,
The Institute for Capacity Development
(ICD) is pleased to announce and invite
you to the following forthcoming
Training workshops/Courses to be held in
months of June - July 2015 in South
Africa and Namibia.
This is a formal invitation from the
Institute for Capacity Development
(ICD) Coordination Unit for you and
your organisation to attend and
participate in our confirmed forthcoming
training short courses for the months of
June- July 2015. The workshops/courses
are held at ICD centres in Windhoek -
Namibia, Pretoria - South Africa and
Harare-Zimbabwe. The aim of the ICD
short courses and workshops is to
support individuals, Government
Departments; International
organisations; SMEs; NGOs and local
communities enhance and develop their
skills needed to realise institutional
growth and development goals.
ICD is now one of the leading capacity
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is looking forward to hosting you at its
organised short courses. ICD is a
registered training vendor with almost
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provided training and consultancy
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and is also registered as a training
vendor by many departments.
Check our confirmed list of courses and
send us your Applications and expression
of interest today. Register now and
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regional and international delegates. If
interested please click here for online
registration or download application
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Applications and related requests can be
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Confirmed Forthcoming Short Courses June
- July 2015: Windhoek - Namibia |
Pretoria - South Africa
#
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WHERE:
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