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dc.contributor.authorEmam, Wasseemen_UK
dc.contributor.authorBakr, Mohamed Een_UK
dc.contributor.authorAbdel-Kader, Marwa Fen_UK
dc.contributor.authorAbdel-Rahim, Mohamed Men_UK
dc.contributor.authorElhetawy, Ashraf I Gen_UK
dc.contributor.authorMohamed, Radi Aen_UK
dc.description.abstractInfected fish have been known to recover from mild illness when they are able to locate to warmer water. This study aimed to replicate this 'behavioural fever' effect in an aquaculture setting by artificially heating a section of a fish pond (thereby introducing a thermal gradient) and effectively modifying pond design. This was achieved through the construction of a 'greenhouse' type structure above a section of the pond. Over the length of the production cycle at three typical Nile tilapia (Oreochromis niloticus) farms, the study collected data on water quality and fish growth and at the end of the cycle, blood samples were taken and total production was recorded. At each farm, fish were divided into two identical ponds, one with a greenhouse covering 3% of the pond surface area and one without. Results showed that greenhouse was effective in warming the surface of the water immediately below it. Oxygen levels were also higher under the greenhouse than outside of it and higher than in the control pond. Fish reared in the greenhouse ponds tended to be larger than the control ponds and had improved physiological and immune status (i.e., better liver and kidney function, higher antioxidant activity and lysozyme count; p < 0.05). The results of this study suggest that low-cost interventions that introduce thermal gradients in aquaculture systems may hold promise for improving health and welfare status of farmed fish in developing countries.en_UK
dc.publisherSmith and Franklin Academic Publishingen_UK
dc.relationEmam W, Bakr ME, Abdel-Kader MF, Abdel-Rahim MM, Elhetawy AIG & Mohamed RA (2023) Modifying the design of pond production systems can improve the health and welfare of farmed Nile tilapia, Oreochromis niloticus. <i>Pakistan Journal of Zoology</i>.
dc.rightsThis article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (
dc.subjectPond modificationen_UK
dc.subjectBehavioural feveren_UK
dc.subjectGrowth performanceen_UK
dc.subjectImmune responseen_UK
dc.titleModifying the design of pond production systems can improve the health and welfare of farmed Nile tilapia, Oreochromis niloticusen_UK
dc.typeJournal Articleen_UK
dc.citation.jtitlePakistan Journal of Zoologyen_UK
dc.type.statusVoR - Version of Recorden_UK
dc.contributor.funderThe British Councilen_UK
dc.description.notesArticle Information Received 26 September 2022 Revised 05 November 2022 Accepted 28 November 2022; O n l i n e F i r s t A r t i c l een_UK
dc.contributor.affiliationInstitute of Aquacultureen_UK
dc.contributor.affiliationKafrelsheik Universityen_UK
dc.contributor.affiliationCentral Laboratory for Aquaculture Researchen_UK
dc.contributor.affiliationNational Institute of Oceanography and Fisheries (NIOF)en_UK
dc.contributor.affiliationNational Institute of Oceanography and Fisheries (NIOF)en_UK
rioxxterms.apcnot requireden_UK
rioxxterms.typeJournal Article/Reviewen_UK
local.rioxx.authorEmam, Wasseem|0000-0002-4574-0921en_UK
local.rioxx.authorBakr, Mohamed E|en_UK
local.rioxx.authorAbdel-Kader, Marwa F|en_UK
local.rioxx.authorAbdel-Rahim, Mohamed M|en_UK
local.rioxx.authorElhetawy, Ashraf I G|en_UK
local.rioxx.authorMohamed, Radi A|en_UK
local.rioxx.projectProject ID unknown|The British Council|en_UK
local.rioxx.filenameEmam et al 2023 PJZ.pdfen_UK
Appears in Collections:Aquaculture Journal Articles

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