From: Karen L. Veverica [mailto:veverkl@gmail.com] Sent: 27 October 2015 14:33 To: William Leschen Subject: Re: Tilapia Fingerling Lesions Uganda - Tilapia Fingerling lésions Ouganda these look like encysted trematodes. They could also be in the gills. Please poke the cysts and see if a small worm comes out. You should also look at the gills and check the kidney for similar cysts. If it is trematodes, I will let you know more about my experience with these; mostly in Rwanda which is not too far from you. We had similar problems in Kenya but were able to manage around it. Karen L. Veverica Director, E.W. Shell Fisheries Research Center School of Fisheries, Aquaculture and Aquatic Sciences Auburn University, AL USA office: 1-334-844-4667 cell: +1 334-332-1560 En francais au dessous De: Karen L. Veverica [mailto: veverkl(a)gmail.com] Envoyé le 27 Octobre ici à 2015 14h33 Pour: William Leschen Sujet: Re: Tilapia Fingerling lésions Ouganda - Ouganda de Tilapia Fingerling ceux-ci ressemblent trématodes enkystées. Ils peuvent également se présenter sous les branchies. S'il vous plaît fouiller les kystes et de voir si un petit ver sort. Vous devriez aussi regarder les branchies et vérifier le rein pour les kystes semblables. Si elle est trématodes, je vous le ferai savoir plus sur mon expérience avec ces; la plupart du temps au Rwanda qui est pas trop loin de vous. Nous avons eu des problèmes similaires au Kenya mais nous avons pu gérer autour d'elle. Karen L. Veverica From: Lulijwa Ronnie Ronald [mailto:rlulijwa@yahoo.com<mailto:rlulijwa@yahoo.com>] Sent: 24 October 2015 17:29 To: sarnissa-african-aquaculture Mailing List Subject: Re: Tilapia Fingerling Lesions Dear Members, Could anyone have experienced these lesions in Tilapia fingerlings If any, what could be the possible cause (fungal or bacterial?) Nice evening See below for more details LULIJWA Ronald Aquaculture Scientist National Agricultural Research Organisation (NARO) Rwebitaba Zonal Agricultural Research and Development Institute. P. O. Box, 96, Fort Portal, Uganda. ________________________________ Dear Will, These fingerlings are coming from earthen ponds, that gets water from an underground spring connected to a farm reservior The area of operation is at high altitude and average temperatures are around 26°C, water quality is acceptable but with high levels of suspended solids and green water. These fish receive a supplementary diet made of formulated floating feed, and there has been no cases of mortality but that is the first case sofar reported. The stocking density is low and fingerlings size is about 5g, originating from the same farm. Thank you Lulijwa Ronald Msc Aquaculture Bsc Fisheries and Aquaculture Chers membres, Pouvait-on connu ces lésions en alevins de tilapia Le cas échéant, ce qui pourrait être la cause possible (fongique ou bactérienne?) Bonne soirée Voir ci-dessous pour plus de détails LULIJWA Ronald Aquaculture Scientiste National Agricultural Research Organisation (NARO) Rwebitaba Zonal Agricultural Research and Development Institute. P. O. Box, 96, Fort Portal, Ouganda. ________________________________________ Cher Will, Ces alevins sont en provenance des étangs de terre, qui obtient de l'eau d'une source souterraine reliée à un reservior agricole La zone d'opération est à haute altitude et les températures moyennes sont autour de 26 ° C, qualité de l'eau est acceptable, mais avec des niveaux élevés de solides en suspension et l'eau verte. Ces poissons reçoivent une alimentation complémentaire en aliments flottants formulé, et il n'y a eu aucun cas de mortalité, mais qui est le premier cas rapporté so far. La densité de peuplement est faible et alevins taille est environ 5 g, provenant de la même exploitation. Merci On Sat, Oct 24, 2015 at 9:07 PM, William Leschen <william.leschen@stir.ac.uk<mailto:william.leschen@stir.ac.uk>> wrote: Dear Ronald Thank you – Ive compressed down the size of your photos – also made them lighter and hopefully clearer - please can you resend again to the forum but this time include some background information about the fingerlings themselves ie From earthpond? Tank? Raceway? Hapa? Area/volume of pond? Tank etc Water source Spring? River? Borehole? Other? Water temp? Water quality ? good ? cloudy ? high suspended solids? Fed regularly? Which feed? Mortalities? Nos per day ? Size in g of fingerlings Nos in pond ?Stocking density in pond? Tank? Etc Other species in holding unit ? Polyculture or just tilapia Origin of the tilapia fingerlings ? stocked from ? If you can give these further details it will help people on the forum to give you a better informed reply Best wishes Will From: Lulijwa Ronnie Ronald [mailto:rlulijwa@yahoo.com<mailto:rlulijwa@yahoo.com>] Sent: 24 October 2015 17:29 To: sarnissa-african-aquaculture Mailing List Subject: Re: Tilapia Fingerling Lesions Dear Members, Could any one have experienced these lesions in Tilapia fingerlings If any, what could be the possible cause (fungal or bacterial) Nice evening LULIJWA Ronald Aquaculture Scientist National Agricultural Research Organisation (NARO) Rwebitaba Zonal Agricultural Research and Development Institute. P. O. Box, 96, Fort Portal, Uganda. ________________________________ The University is ranked in the QS World Rankings of the top 5% of universities in the world (QS World University Rankings, 2014) The University of Stirling is a charity registered in Scotland, number SC 011159.