Selective breeding trait preferences for farmed tilapia among low-income women and men consumers in Egypt: Implications for pro-poor and gender-responsive fish breeding programmes

Murphy, Seamus; Charo‐Karisa, Harrison; Rajaratnam, S.; Cole, Steven M.; McDougall, Cynthia; Nasr-Allah, A.M.; Kenawy, D.; Zead, M. Y. A.; Brakel, Martin L. van; Banks, Lauren K.; Ibrahim, Nabil A.

doi:10.1016/j.aquaculture.2020.735042

Cited by 22 publications

(13 citation statements)

References 41 publications

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“…Demand for fish is increasing in Egypt due to a growing population and increased per capita consumption in the last two decades, likely due to economically incentivised changes in consumer preferences and increased accessibility (i.e., low-cost domestic fish production, improvements in distribution networks, etc.) ( Murphy et al, 2020 ). Indirect price controls on tilapia have been imposed by the government through the introduction of an export tax for tilapia, and this policy has created tension between a government aiming to ensure a reliable, low cost and secure supply of animal protein for the population in the country and tilapia producers keen to maximise profits.…”

Section: Discussionmentioning

confidence: 99%

Systems-thinking approach to identify and assess feasibility of potential interventions to reduce antibiotic use in tilapia farming in Egypt

et al. 2021

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Antibiotics are used in aquaculture to maintain the health and welfare of stocks; however, the emergence and selection of antibiotic resistance in bacteria poses threats to humans, animals and the environment. Mitigation of antibiotic resistance relies on understanding the flow of antibiotics, residues, resistant bacteria and resistance genes through interconnecting systems, so that potential solutions can be identified and issues around their implementation evaluated. Participatory systems-thinking can capture the deep complexity of a system while integrating stakeholder perspectives. In this present study, such an approach was applied to Nile tilapia ( Oreochromis niloticus ) production in the Nile Delta of Egypt, where disease events caused by antibiotic-resistant pathogens have been reported. A system map was co-produced with aquaculture stakeholders at a workshop in May 2018 and used to identify hotspots of antibiotic use, exposure and fate and to describe approaches that would promote fish health and thus reduce antibiotic use. Antibiotics are introduced into the aquaculture system via direct application for example in medicated feed, but residues may also be introduced into the system through agricultural drainage water, which is the primary source of water for most fish farms in Egypt. A follow-up survey of stakeholders assessed the perceived feasibility, advantages and disadvantages of potential interventions. Interventions that respondents felt could be implemented in the short-term to reduce antibiotic usage effectively included: more frequent water exchanges , regular monitoring of culture water quality parameters , improved storage conditions for feed , use of probiotics and greater access to farmer and service providers training programmes . Other potential interventions included greater access to suitable and rapid diagnostics , high quality feeds , improved biosecurity measures and genetically-improved fish , but these solutions were expected to be achieved as long-term goals, with cost being of one of the noted barriers to implementation. Identifying feasible and sustainable interventions that can be taken to reduce antibiotic use, and understanding implementation barriers, are important for addressing antibiotic resistance and ensuring the continued efficacy of antibiotics. This is vital to ensuring the productivity of the tilapia sector in Egypt. The approach taken in the present study provides a means to identify points in the system where the effectiveness of interventions can be evaluated and thus it may be applied to other food production systems to combat the problem of antibiotic resistance.

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Section: Discussionmentioning

confidence: 99%

Systems-thinking approach to identify and assess feasibility of potential interventions to reduce antibiotic use in tilapia farming in Egypt

et al. 2021

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“…Most of the coastal lagoons are located in the lower Delta, so utmost of tilapia fish farms development are concentrated in main four north governors Kafr El Sheikh, Port Said, Sharkia, and Beheira [4]. There are few studies that investigate the relation between fish farm development and lowincome consumers demand to fish [35][36][37]. Furthermore, Murphy et al [35] recorded the relation between Egypt's farmed tilapia markets, diversity and the different grades of product sold from where the prices according to size, quality, location, and market.…”

Section: Tilapia Industry In Egyptmentioning

confidence: 99%

Relationship Between the Productivity Losses of Tilapia and Aeromonas veronii Infection

Reda

El-Murr

Elhakim

et al. 2021

Zagazig Veterinary Journal

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Nile tilapia (Oreochormis niloticus) is considered one of the top cultured fish in Egypt and the second globally. The high demand for animal protein was associated with intensive fish culturing, which resulted in the emergence of disease outbreaks causing significant losses in tilapia aquaculture among the recent years. With special reference to bacterial outbreaks, Aeromonas veronii (A. veronii) is a recently reported bacterial pathogen affecting farmed tilapia and other fish species worldwide. A. veronii has been notified as a significant threat on Nile tilapia populations resulting in heavy mortality and was recorded to have a wide range of antibiotic resistance. Subsequently, recent publications focused on immunostimulant alternatives. The previous science data on summer tilapia mortality phenomena were outlined in this review article with special reference to A. veronii as an important pathogen. Clinical and postmortem symptoms, histopathological lesions, genetic diversity, and associations with others submitted to GenBank, diagnosis, control steps, and significance to public health were highlighted.

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“…Interest in commercial production of tilapia has been associated with development of several breeding programs with the aim of improving its productivity (Rutten et al, 2005;Ponzoni et al, 2005;Maluwa and Gjerde, 2006). Murphy et al (2020) reviewed the trend of national aquaculture production from the year 2000 through 2016 and found that it has been increased from 3.4 × 10 5 mt to 13.71 × 10 5 mt. Tilapia in particular increased from nearly 1.7 × 10 5 mt in 2000 to more than 9 × 10 5 mt in 2016.…”

Section: Farming Of Nile Tilapiamentioning

confidence: 99%

A Review of some prebiotics and probiotics supplementation effects on farmed fishes: with special reference to Mannan oligosaccharides (MOS)

Gayed¹,

Elabd

Shehabeldin

et al. 2021

Benha Veterinary Medical Journal

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Aquaculture has been increasingly contributing to animal protein production during the last few decades. Tilapia is known as one of the highly valuable fish cultured in wide geographical areas in several countries as a source of animal protein including Egypt. Tilapia has the merit of tolerance to a wide range of environmental conditions and ability to utilize food from the lowest trophic levels. The intensification of aquaculture production is usually challenged by infections including bacterial and parasitic burdens, which obligates the use of chemicals and antibiotics to control disease outbreaks. The injudicious use of antibiotics inevitably led to expansion of resistance, mutant pathogenic strains and detrimental effects to fish and consumer health.Therefore, it is imperative to find alternative ecofriendly sources as prebiotics and probiotics which can improve fish health, performance, and immunity without any side effects to the fish themselves or the consumer health. Prebiotics are known as a group of non-digestible food ingredients which encourage the growth of advantageous microorganisms in the gastro-intestinal tract. Like probiotics and synbiotics, inclusion of prebiotics as feed supplements into diets of farmed fishes is usually accompanied by immunomodulation and increased resistance of fish against serious bacterial agents as Aeromonas hydrophila infection. The current review article focuses on the potential effects of probiotics and MOS-containing prebiotics on health status, immune response and survivability of farmed fishes specially referring to Nile tilapia.Fish.

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Selective breeding trait preferences for farmed tilapia among low-income women and men consumers in Egypt: Implications for pro-poor and gender-responsive fish breeding programmes

Cited by 22 publications

References 41 publications

Systems-thinking approach to identify and assess feasibility of potential interventions to reduce antibiotic use in tilapia farming in Egypt

Systems-thinking approach to identify and assess feasibility of potential interventions to reduce antibiotic use in tilapia farming in Egypt

Relationship Between the Productivity Losses of Tilapia and Aeromonas veronii Infection

A Review of some prebiotics and probiotics supplementation effects on farmed fishes: with special reference to Mannan oligosaccharides (MOS)

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