Dear Melshior;
It is highly advisable that you seek help from a veterinary diagnostic lab to identifying the cause of these lesions, and/or any increased mortality. The pictures you shared could be caused by a number of bacteria, viruses, fungi, or other pathogens. Without this information, it’s impossible to plan prevention, control or eradication programs, and your losses will only increase with time.
I would recommend you contact the Ghanaian Veterinary Services (see http://www.e-agriculture.gov.gh/index.php/about-mofa/technical-services/veterinary-services#). While they primarily deal with livestock diseases, many of the diagnostic assays they will be able to perform (e.g. bacterial culture, histopathology, etc.) will help narrow down, or identify the cause. They may also be able to recommend another vet DX lab in the region that could provide additional diagnostics, if needed.
Regards,
Dave
A. David Scarfe PhD, DVM, MRSSAf, CertAqV
Aquatic Veterinary Associates International, LLC
365 Monarch Birch Ct., Bartlett, IL 60103, USA
+1 (847) 650-4628
From: Sarnissa-african-aquaculture [mailto:sarnissa-african-aquaculture-bounces@lists.stir.ac.uk] On Behalf Of chnmurali--- via Sarnissa-african-aquaculture
Sent: Wednesday, August 9, 2017 1:41 PM
To: William Leschen <william.leschen@stir.ac.uk>
Cc: sarnissa-african-aquaculture Mailing List <sarnissa-african-aquaculture@lists.stir.ac.uk>; sarnissa-french-aquaculture Mailing List <sarnissa-french-aquaculture@lists.stir.ac.uk>
Subject: Re: [{WARNING: Msg Size >4 Meg; *NOT* spamchecked}
Dear Avor
We have he'll lot of diseases in Ghana and the mortality is everywhere except some farms who went on for vaccination for Strep. Even after vaccination they still face mortality but not much like others.
We have columnaris, aeromonas, Streptococcus, klebsiscella etc etc bacteria, saprolegnia, fish lice etc.
Looking at the pictures I fear more now, aeromonas also looks little bit near to those symptoms but fin rot is dominant when aeromonas is there.
These symptoms are matching with the latest pics released for TILV.
Let's not conclude, I will forward this mail to a expert who came to Ghana two days back and he has PCR with him. He will confirm the disease if it is TILV.
Please give your contact details
With Regards
Naga Murali
Sent from my iPhone
On 9 ఆగ, 2017, at 5:45 [PM], William Leschen via Sarnissa-african-aquaculture <sarnissa-african-aquaculture@lists.stir.ac.uk> wrote:
From: melavor farmconsult [mailto:melavorfarmconsult@gmail.com]
Sent: 04 August 2017 15:59
To: William Leschen <william.leschen@stir.ac.uk>
Subject: Could this be a sign of tilapia lake virus?
Clinical signs on moribund farmed tilapia from Volta Lake Ghana… what do they tell one ?
Hi William
Every month during sampling I see this sign on at least two fishes, I record mortality of 50pieces on average daily.
There is no single day, were we don't record mortality on lake Volta around Akosombo.Kindly find attached photos
Could it be Tilapia Lake Virus?Regards
Melshior Avor
From SARNISSA email forum
Ed Please for all Following feel welcome to respond - send your thoughts opinions and if relevant your own experiences
Salut Guillaume
Chaque mois lors de l'échantillonnage, je vois ce signe sur au moins deux poissons, je note la mortalité de 50 pièces par jour.
Il n'y a pas un seul jour, si nous ne enregistrons pas la mortalité sur le lac Volta autour d'Akosombo.
Veuillez trouver ci-joint les photos
Peut-il être Tilapia Lake Virus?
Cordialement
Melshior Avor
Du forum email SARNISSA
Ed S'il vous plaît pour tous les commentaires, répondez - envoyez vos opinions et, le cas échéant, vos propres expériences<IMG_20170731_101624.jpg>
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