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Dissertations / Theses on the topic 'Tilapia Aquaculture'

Author: Grafiati

Published: 4 June 2021

Last updated: 26 July 2025

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1

Martínez-Mejía, Pablo Rolando Molnar Joseph J. "Understanding small and medium scale tilapia culture in Nicaragua." Auburn, Ala., 2006. http://repo.lib.auburn.edu/2006%20Fall/Dissertations/MARTINEZ-MEJIA_PABLO_53.pdf.

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2

Hartley, Adrian G. "Tilapia as a global commodity : a potential role for Mexico?" Thesis, University of Stirling, 2007. http://hdl.handle.net/1893/261.

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The potential for commercial tilapia aquaculture to be developed taking an economic-focused approach was investigated in Mexico. The research examined various issues related to production, marketing and the business environment of the industry. Findings revealed that farmed tilapia products in Mexico can be produced competitively and profitably in large quantities, not only due to its suitability for culture in most of the country; but also due to the availability of more profitable markets (i.e. supermarkets), increasing demand for high quality tilapia products (e.g. fresh, large sizes and mo

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3

Ampofo-Yeboah, Akwasi. "Effect of phytogenic feed additives on gonadal development in Mozambique tilapia." Thesis, Stellenbosch : Stellenbosch University, 2013. http://hdl.handle.net/10019.1/79976.

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Thesis (PhD)--Stellenbosch University, 2013.<br>ENGLISH ABSTRACT: This study investigated the “Effect of Phytogenic Feed Additives on Gonadal Development in Mozambique tilapia (Oreochromis mossambicus). Aquaculture remains the fastest growing animal food-producing sector and it is set to overtake capture fisheries as a source of food fish, and also to outpace population growth. This rapid growth can be attributed to the increasing demand for aquaculture products, and an urgent need for a sustainable food resource and the safe production of food. Globally, fish provides over 3.5 billion peo

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4

Stoneham, Tyler Robert Jeffery. "Development of Omega-3-Fatty Acid Enriched Finishing Feed and Value Added Tilapia Product." Thesis, Virginia Tech, 2016. http://hdl.handle.net/10919/81383.

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Despite being a low fat fish and consequently a low omega-3 fish, tilapia have widespread consumer acceptability due to its mild taste, cheap price and low mercury content. However some sources claim that farmed tilapia can be detrimental to human health due to high omega-6:3 ratios and low omega-3 content specifically eicosapentaenoic acid, docosapentaenoic acid, and docosahexaenoic acid. The objective of this study was to create an omega-3 enriching feed that would increase omega-3 content in tilapia and subsequently decrease the omega-6:3 ratio. An 8 week feeding trial was conducted. Tilap

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5

Farzad, Razieh. "Novel Aquafeed Towards A Sustainable Aquaculture." Diss., Virginia Tech, 2018. http://hdl.handle.net/10919/103810.

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With World Health Organization estimation of population increase to over 9 billion by 2050, malnutrition and food insecurity are predicated to be two of the main challenges facing the world in the future. Fish is a source of protein that can have a significant contribution for solving the global food crisis. Fish for human consumption is provided by both the aquaculture industry and the capture fisheries, however, the flat-lined production of seafood from capture fisheries means aquaculture production should double in number to provide enough protein by 2050. Culturing fish at higher densities

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6

Chaddick, Justin Garrett. "Sustainable tilapia feed derived from urban food waste." Thesis, Georgia Institute of Technology, 2015. http://hdl.handle.net/1853/54468.

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Finding an alternative to fishmeal and fish oil in animal feeds has been a topic of increasing interest due to the pressures being put on the ocean’s fisheries and the increasing world demand for animal protein. An often-overlooked source of nutrients is in the form of food waste. One third of all food produced globally ends up in landfills, wasting a huge amount of nutrients and embodied energy that could otherwise be redirected towards productive use. This study investigated the feasibility of feeding Hermetia illucens, the black soldier fly larvae (BSFL), grown on urban food waste, and Lemn

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7

Bell, Thomas Allen. "Copper uptake and toxicity in tilapia Oreochromis niloticus exposed to copper sulphate." Thesis, University of Stirling, 1996. http://hdl.handle.net/1893/1835.

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The copper uptake and toxicity of young and market-size tilapia, Oreochromis niloticus, exposed to copper sulP'hate were investigated. A series of preliminary experiments were conducted to provide requisite information for the final experiment. Preliminary experiments established uptake by the culture systems, feed and/or faeces, and. the impact of fish nutritional state on uptake. Other experiments established the median lethal concentration of copper to this species, an extrapolated minimal lethal concentration, and the optimum exposure duration and concentration for copper uptake. The remai

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8

Thorpe, Peter Stuart. "An investigation into the dietary requirements of Oreochromis Mossambicus fry and the formulation and preparation of a dry food for use in aquaculture." Thesis, Rhodes University, 1989. http://hdl.handle.net/10962/d1001960.

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The need for developing a dry feed which satisfied the nutrient requirements of Oreochromis mossambicus fry was identified. The spawning and grading techniques which resulted in a higher fecundity and ensured uniformity within and between samples of fry are discussed. Preparation techniques were developed which met the physical requirements of fry feeds. An analysis of the flesh and yolk sac fry for amino acid composition was undertaken. The initial test diet was based on these results, as well as on the natural feeding ecology of the species. Feeding trials were undertaken and growth response

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9

Bohman, Marcus, and Per Magnusson. "Smakprofil av Tilapia (Niltilapia) : en jämförelse av vakuumförpackad Tilapia över tid." Thesis, Högskolan Kristianstad, Sektionen för lärande och miljö, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:hkr:diva-15556.

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Fler svenskar vill konsumera mer inhemskt producerad fisk. Scandinavian Aquasystems odlar och försöker introducera fisken tilapia på svenska marknaden. Tilapia är en fisk som precis börjat göra intåg i Europa men är stor runtomkring resten av världen. En smakprofil som berättar hur länge produkten är sensoriskt tjänlig kan vara av hjälp. Denna undersökning syftade till att skapa en sensorisk smakprofil för fisken tilapia och till att se hur smakprofilen förändrades vid lagring i vakuumförpackning. För att skapa smakprofilen användes metoden QDA. Resultatet gav många egenskapsord var av vissa k

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10

Kodra, Bledar. "Risk Analysis of Tilapia Recirculating Aquaculture Systems: A Monte Carlo Simulation Approach." Thesis, Virginia Tech, 2007. http://hdl.handle.net/10919/31845.

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The purpose of this study is to modify an existing static analytical model developed for a Re-circulating Aquaculture Systems through incorporation of risk considerations to evaluate the economic viability of the system. In addition the objective of this analysis is to provide a well documented risk based analytical system so that individuals (investors/lenders) can use it to tailor the analysis to their own investment decisions—that is to collect the input data, run the model, and interpret the results. The Aquaculture Economic Cost Model (AECM) was developed by Dr. Charles Coale, Jr. and oth

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11

Natarajan, M. "Effects of amylase inhibitor albumin from wheat on the alpha-amylase activity in carp and tilapia." Thesis, University of Stirling, 1988. http://hdl.handle.net/1893/1919.

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The amylolytic activities of alpha-amylase extracted from Mirror carp (Cyprinus carpio) and Nile tilapia (Oreochromis niloticus) were significantly reduced by purified amylase inhibitor albumin of wheat when tested under in vitro conditions. The action of this inhibitor was rapid and maximum levels of inhibition were attained within 20 minutes. For both carp and tilapia, the enzyme residual activities after inhibition were found to be related inversely to inhibitor concentration and positively to the initial enzyme activity levels. The curvilinear relationships between these parameters were ex

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12

Asgodom, Mihretu T. "An investigation of the survival level of Oreochromis mossambicus fry variably kept in a closed system : laboratory experiment." Thesis, Link to the online version, 2005. http://hdl.handle.net/10019/958.

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13

Ramotar-John, Badule Pamila. "Supplementing soybean meal with Camelina (Camelina sativa) in tilapia diets and optimizing commercial tilapia diets for use in intensive systems in the Western region of the United States." Thesis, The University of Arizona, 2014. http://pqdtopen.proquest.com/#viewpdf?dispub=3634261.

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<p> The feed production cost in tilapia diets is driven by the prices of its ingredients such as fishmeal (FM) and soybean meal (SBM). Fishmeal and soymeal combined with other ingredients provides fish with the nutrients required for growth and sustaining life. Soybean meal is used as an alternative to fishmeal, but prices for this traditional ingredient have increased significantly in recent years as a result of high market demand from other industries. Consequently, there has been an increase interest by tilapia nutritionists and feed manufacturers to find less expensive, alternative feedstu

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14

Asiain-Hoyos, Alberto. "Technology transfer for commercial aquaculture development in Veracruz, Mexico." Thesis, University of Stirling, 2009. http://hdl.handle.net/1893/1723.

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This work presents results of the research project "Technology Transfer for Commercial Aquaculture Development in Veracruz, Mexico", conducted during 2001-2006 and whose overall aim was to achieve a better understanding of the different processes involved in technology transfer and extension in Veracruz, and their role in tilapia culture development in terms of characteristics, intensity and direction. Data and information were collected by personal interviews and through participant-observation techniques. The most relevant regional initiatives that have promoted tilapia farming wer

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15

Storey, Nathaniel R. "An aquaponic system component comparisons and applications /." Laramie, Wyo. : University of Wyoming, 2009. http://proquest.umi.com/pqdweb?did=1939351881&sid=1&Fmt=2&clientId=18949&RQT=309&VName=PQD.

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16

Licamele, Jason David. "Biomass Production and Nutrient Dynamics in an Aquaponics System." Diss., The University of Arizona, 2009. http://hdl.handle.net/10150/193835.

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The goal of this study was to prove that aquaponic systems can produce lettuce of equal growth and quality compared to hydroponic lettuce production and to determine the stocking density of fish required for plant growth. Aquaponics is the integration of recirculating aquaculture and hydroponic plant production. The project had four objectives. The first objective was to determine the biomass of fish required for plant growth to develop a fish to plant density ratio. The second objective was to compare lettuce grown with aquaponic water and a hydroponic solution under the same environmental co

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17

Little, David C. "An evaluation of strategies for production of Nile tilapia (Oreochromis Niloticus L.) fry suitable for hormonal treatment." Thesis, University of Stirling, 1989. http://hdl.handle.net/1893/2112.

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Intensive methods for the mass production of Oreochromis niloticus (Chitralada strain) seed using concrete tanks, hapas within earthen ponds and earthen ponds were investigated. On the basis of these trials, the productivity and economic performance of various production strategies for hormonally sex-reversed Oreochromis fry (MT fry) were then compared and modelled for adoption in Central and Northeast Thailand. Regular disturbance and harvesting of seed after a short period of spawning opportunity (5-10 days) was found to increase seed production in concrete spawning tanks. Exchange of female

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18

Branfield, G. R. "Thermal charcteristics of a greenhouse for aquaculture." Thesis, Stellenbosch : University of Stellenbosch, 2006. http://hdl.handle.net/10019.1/1794.

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Thesis (MScEng (Mechanical and Mechatronic Engineering))--University of Stellenbosch, 2006.<br>Successful housing and breeding of exotic animals or plants often requires an environment that is quite different to the ambient conditions present. The current study approached the problem of sub-optimal water temperatures experienced by Central African Bream (Tilapia) housed within a South African greenhouse during winter months. A theoretical and experimental study of fundamental heat and mass transfer processes relevant to an aquacultural greenhouse was conducted. Experimental results were genera

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19

Titus, Phillip Heinrich. "Gastrointestinal bacterial communites of Tilapia (Oreochromis mossambicus) and Trout (Oncorhynchus mykiss)." Thesis, Stellenbosch : Stellenbosch University, 2012. http://hdl.handle.net/10019.1/20364.

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Thesis (MSc)--Stellenbosch University, 2012.<br>ENGLISH ABSTRACT: A 2010 Food and Agriculture Organization (FAO) report indicated that 85% of the world´s fish stocks overexploited. This highlights the importance of commercial aquaculture as a sustainable alternative to capture fisheries. Growth rates for international aquaculture production are slowing, although an average annual increase of 12.6% occurred in Africa between 1970 and 2008. Sub-Saharan Africa accounted for 0.50% of the total world aquaculture production in 2008. The South African aquafeed industry recognized the need for a

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20

Porto, Cassiano Cauê Pôssas. "Desempenho de um sistema de tratamento de efluentes de aquacultura : a recirculação como um alternativa sustentável." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2010. http://hdl.handle.net/10183/26915.

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O intenso desenvolvimento da aquacultura tem sido acompanhado de um aumento nos impactos ambientais causados por esta atividade. As descargas de efluentes da aquacultura em ecossistemas aquáticos são uma fonte de deterioração da qualidade ambiental e podem causar eutrofização. O presente trabalho investigou e avaliou o desempenho de um sistema de tratamento e recirculação de efluentes de aquacultura em relação à sua eficiência em manter e restaurar os parâmetros de qualidade da água em níveis adequados ao ciclo produtivo, considerando as implicações desta técnica na conservação dos recursos hí

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21

Caldini, Nayara Nunes. "Use of bioflocs biomass wet and dry for feeding of Nile tilapia." Universidade Federal do CearÃ, 2015. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=14408.

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Conselho Nacional de Desenvolvimento CientÃfico e TecnolÃgico<br>This study consisted of two experiments. The first objective was to demonstrate the technical feasibility of separate BFT tank technology in juvenile cultivation of Nile tilapia, for monitoring quality variables of water and productive performance. The fish were fed different combinations of artificial food (balanced diet) and natural food (bioflocs biomass). As the supply of food decreased the tanks increased the biomass supply bioflocs. Bioflocs biomass was produced in an external tank 500 L, separately from the cultivation sys

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22

Adeoye, Ayodeji. "The effects of selected bio-active feed additives on Nile tilapia (Oreochromis niloticus) production and health." Thesis, University of Plymouth, 2016. http://hdl.handle.net/10026.1/6561.

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Three investigations were conducted to assess the effects of selected bio-active feed additives on tilapia (Oreochromis niloticus) growth performance, feed utilisation, haemato-immunological status, intestinal morphology and microbiology. The first experiment was conducted to evaluate the effects of feeding tilapia semi-practical diets supplemented with exogenous enzymes (phytase, protease or carbohydrase). After six weeks of the dietary supplementation, tilapia fed diets supplemented with exogenous enzymes (phytase and carbohydrase) showed enhanced growth performance and higher microvilli den

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23

Flemming, Leonard (Leonard Arnold). "Molecular characterisation of Flavobacterium spp. and investigation of their biofilm-forming capacity in the tilapia aquaculture system." Thesis, Stellenbosch : University of Stellenbosch, 2006. http://hdl.handle.net/10019.1/17351.

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Thesis (MSc)--University of Stellenbosch, 2006.<br>ENGLISH ABSTRACT: Fish infections caused by pathogenic Flavobacterium spp. are a major problem in the aquaculture industry worldwide, often leading to large economic losses. Thirty-two Flavobacterium spp. isolates, obtained from various diseased fish species and biofilm growth, were characterised genetically using 16S rRNA gene sequencing, 16S rRNA gene PCR restriction fragment length polymorphism (RFLP), randomly amplified polymorphic DNA (RAPD) PCR, repetitive extragenic palindromic (REP) element PCR, plasmid profiling, whole cell pro

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Djurstedt, Mattias. "Rearing of Nile tilapia in Bio-RAS approach compared to traditionally biofloc technique. The future of Aquaculture!" Thesis, Örebro universitet, Institutionen för naturvetenskap och teknik, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:oru:diva-86269.

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Aquaculture is important towards the accomplishment of the Sustainable Development Goals, especially goal 14 and rural economic development in developing countries, but today aquaculture still has many unsustainable factors both in water use and organic waste. Biofloc (aggregation of microorganisms) technology is a potential aquaculture system which could make the industry more economic viable and more sustainable. In biofloc technology the reared species is together with microbes in the same water body and the toxic nitrogen species (NH4+) is converted into microbial protein. This gives both

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Madalla, Nazael. "Novel feed ingredients for Nile tilapia (Oreochromis niloticus L.)." Thesis, University of Stirling, 2008. http://hdl.handle.net/1893/795.

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Lack of affordable feeds is one of the major constraints facing small-scale fish farmers in Tanzania. This study evaluated the suitability of moringa leaf meal (MLM), cassava leaf meal (CLM) and cassava root meal (CRM) as novel ingredients in Nile tilapia, Oreochromis niloticus diets. Each of the ingredients was processed in an attempt to remove the most significant antinutritional factor. A series of five experiments was conducted in a recirculation system using juvenile O. niloticus. The fish were fed isonitrogenous (30g 100g-1), isolipidic (10g 100g-1) and isoenergetic (18 kJ g-1) diets con

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26

Pilco, Quesada Silvia 1986. "Desenvolvimento e validação de método analítico empregando LC-MS/MS QToF para a determinação de fluoroquinolonas em peixes." [s.n.], 2012. http://repositorio.unicamp.br/jspui/handle/REPOSIP/256315.

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Orientadores: Felix Guillermo Reyes Reyes, Jonas Augusto Rizzato Paschoal<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia de Alimentos<br>Made available in DSpace on 2018-08-20T20:20:58Z (GMT). No. of bitstreams: 1 PilcoQuesada_Silvia_M.pdf: 1450390 bytes, checksum: a021e048252c2afe9ae8f4892c08fc56 (MD5) Previous issue date: 2012<br>Resumo: A aquicultura é um setor de produção de alimentos que apresenta grande crescimento em todo o mundo. O Brasil possui um alto potencial de expansão da atividade aquícola, com produção promissora de espécies exóticas co

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Devic, Emilie D. P. "Assessing insect-based products as feed ingredients for aquaculture." Thesis, University of Stirling, 2016. http://hdl.handle.net/1893/24370.

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Research has been actively looking for alternative feed ingredients to reduce the reliance of the aquafeed industry on marine ingredients, namely fish meal (FM) and fish oil (FO). In this context, insects, in particular housefly (Musca domestica) and black soldier fly (BSF, Hermetia illucens) larvae, have been identified as promising candidates. Although a global insect farming industry is emerging, it is for now constrained by regulatory and technical bottlenecks that raise the question ‘where and how insect-based products could be integrated into aquaculture’. The literature indicated a high

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Fridman, Sophie. "The ontogeny of osmoregulation in the Nile tilapia (Oreochromis niloticus L.)." Thesis, University of Stirling, 2011. http://hdl.handle.net/1893/3080.

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In recent times, diminishing freshwater resources, due to the rapidly increasing drain of urban, industrial and agricultural activities in combination with the impact of climate change, has led to an urgent need to manage marine and brackish water environments more efficiently. Therefore the diversification of aquacultural practices, either by the introduction of new candidate species or by the adaptation of culture methods for existing species, is vital at a time when innovation and adaptability of the aquaculture industry is fundamental in order to maintain its sustainability. The Nile tilap

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Paiva, Kelli Cristina [UNESP]. "Utilização de ração a base de sorgo na alimentação de Tilápia do Nilo (Oreochromis niloticus) sobre as caracteristicas zootécnicas do peixe e caracteristicas físicas, químicas, bioquímicas, histomorfológicas viscerais e sensoriais do filé." Universidade Estadual Paulista (UNESP), 2010. http://hdl.handle.net/11449/100980.

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Made available in DSpace on 2014-06-11T19:31:05Z (GMT). No. of bitstreams: 0 Previous issue date: 2010-10-10Bitstream added on 2014-06-13T20:41:17Z : No. of bitstreams: 1 paiva_kc_dr_arafcf.pdf: 853846 bytes, checksum: 260b6535d470ef7f6e656a8ba1f4e0f3 (MD5)<br>Universidade Estadual Paulista (UNESP)<br>O presente trabalho teve como objetivo estudar se os diferentes níveis de substituição do milho pelo sorgo com baixo teor de tanino em rações para Tilápias do Nilo afetam a composição corporal, qualidade dos filés, parâmetros bioquímicos do sangue e a histomorfometria do fígado e intestino. A a

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Paiva, Kelli Cristina. "Utilização de ração a base de sorgo na alimentação de Tilápia do Nilo (Oreochromis niloticus) sobre as caracteristicas zootécnicas do peixe e caracteristicas físicas, químicas, bioquímicas, histomorfológicas viscerais e sensoriais do filé /." Araraquara : [s.n.], 2010. http://hdl.handle.net/11449/100980.

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Resumo: O presente trabalho teve como objetivo estudar se os diferentes níveis de substituição do milho pelo sorgo com baixo teor de tanino em rações para Tilápias do Nilo afetam a composição corporal, qualidade dos filés, parâmetros bioquímicos do sangue e a histomorfometria do fígado e intestino. A amostra foi constituída por 250 Tilápias do Nilo (Oreochromis niloticcus) machos com peso médio de 20g as quais receberam alimentação durante o período experimental com rações isocalóricas e isoprotéicas constituindo-se o grupo controle com ração a base de milho (T1) e os grupos experimentais com

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Moreau, Yann. "Couverture des besoins énergétiques des poissons tropicaux en aquaculture. Purification et comparaison des amylases de deux tilapias, Oreochromis niloticus et Sarotherodon melanotheron." Aix-Marseille 3, 2001. http://www.theses.fr/2001AIX30015.

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Dietary energy supply was studied in tropical fish used in aquaculture and known for their better utilization of non-protein energy fuel. Needs were evaluated and the use of starch as a potential source of dietary energy was investigated, as well. Whereas the needs were estimated by providing increasing rationsof a single high protein diet, without any limiting effect, the use of starch was studied by indirect calorimetry and growth experiments. Development of a purification strategy for amylases from the two tilapias species allowed us to study their characteristics and to compare them in the

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Rodde, Charles. "Individual feed efficiency in fishes : direct measurement methods and indirect predictors to develop selective breeding programs in two major aquaculture species : European sea bass Dicentrarchus labrax and Nile tilapia Oreochromis niloticus." Thesis, Montpellier, 2020. http://www.theses.fr/2020MONTG044.

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L’aliment utilisé en pisciculture est onéreux et impacte l’environnement. Améliorer l’efficacité alimentaire (EA) pour produire la même quantité de poisson en utilisant moins d’aliment est un objectif majeur pour rendre l’aquaculture plus durable. Cet objectif pourrait être atteint grâce à la sélection génétique, mais cela nécessite des méthodes de phénotypage individuel, et mesurer la prise alimentaire individuelle est complexe chez le poisson. Les deux meilleures méthodes, à l’heure actuelle, consistent soit à élever les poissons individuellement, soit à les marquer avec un tag externe pour

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Pollock, Lindsay Jane. "Integration of aquaculture within irrigation systems : a poverty-focused approach." Thesis, University of Stirling, 2005. http://hdl.handle.net/1893/76.

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The potential for aquaculture to be integrated within a large-scale irrigation system taking a poverty-focused approach was investigated in the Mahaweli System H irrigation system of North Western Province, Sri Lanka. Using a livelihoods approach an initial situation appraisal identified the potential for aquaculture to be integrated within existing livelihoods activities. The appraisal revealed that decreasing returns from farming and fishing seasonality were major sources of household vulnerability. Using fish caught from the tank fishery, small-scale cage-based fattening of tilapia was deve

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Zhang, Wenbo. "Sustaining export-oriented value chains of farmed seafood in China." Thesis, University of Stirling, 2014. http://hdl.handle.net/1893/20347.

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This thesis is intended to improve the understanding of China’s evolving export-oriented farmed seafood systems, and in particularly, shrimp and tilapia farming value chains in Southern China. An integrated, systems thinking and interdisciplinary approach in which both top–down and bottom–up approaches were combined. The research moved from system reviews, to field surveys and workshops, and then to improving sustainability by Action Research (AR), in order to form a holistic understanding of sustainability at both national and local scales. In the new millennium, the aquaculture sector has ma

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Anane-Taabeah, Gifty. "Characterization of the molecular genetic variation in wild and farmed Nile tilapia Oreochromis niloticus in Ghana for conservation and aquaculture development." Diss., Virginia Tech, 2019. http://hdl.handle.net/10919/87410.

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The Nile tilapia Oreochromis niloticus is native to Africa and middle East, and is an important source of nutrition for many in sub-Saharan Africa. Understanding the genetic diversity within and differentiation among wild populations can help identify O. niloticus populations that are imperiled and require directed management, especially because of increasing threats to the species� long-term persistence in the wild, including habitat destruction, overfishing, climate change, and hybridization with farmed populations. Knowledge of the genetic variation among wild populations also can contribut

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Jaser, Suhaila Karim Khalil. "Avaliação de polimorfismos no gene do Hormônio de Crescimento (GH1) de duas variedades de Oreochromis niloticus e sua associação com caracteristicas de desempenho." Universidade de São Paulo, 2015. http://www.teses.usp.br/teses/disponiveis/87/87131/tde-04122015-134007/.

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O objetivo deste estudo foi identificar SNPs na região promotora e no intron I do gene GH (região alvo) e verificar sua possível associação com o crescimento de O. niloticus, o que foi executado em duas etapas: (1) prospecção de SNPs; (2) associação de SNPs com crescimento das variedades Red-Stirling e Chitralada. As análises de associação foram realizadas por meio de metodologia estatística baseada em análise univariada de modelo linear misto considerando-se efeitos fixos e aleatórios. Nove SNPs foram identificados no promotor (GHP1 a GHP9) e um na região 5 UTR (GHP10), os quais formaram 10 b

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Standen, Benedict. "The effect of dietary probiotics on Nile tilapia, Oreochromis niloticus, health and growth performance." Thesis, University of Plymouth, 2015. http://hdl.handle.net/10026.1/3926.

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Three investigations were conducted in order to investigate the effect of dietary probiotics on tilapia (Oreochromis niloticus) growth performance, intestinal morphology, intestinal microbiology and immunity. The first experiment demonstrated that Bacillus subtilis, Lactobacillus reuteri and Pediococcus acidilactici supplemented individually and as a mixed probiotic (in addition to Enterococcus faecium; AquaStar® Growout) were capable of modulating intestinal microbial populations as determined by culture dependent methods and DGGE. Furthermore, high-throughput sequencing reported that >99% of

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Silva, Mariana Silveira Guerra Moura e. "Desenvolvimento de um sistema de recirculação com uso de wetlands construídas para efluentes da piscicultura." [s.n.], 2012. http://repositorio.unicamp.br/jspui/handle/REPOSIP/256832.

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Orientador: Denis Miguel Roston<br>Tese (doutorado) - Universidade Estadual de Campinas, Faculdade de Engenharia Agrícola<br>Made available in DSpace on 2018-08-20T21:53:47Z (GMT). No. of bitstreams: 1 Silva_MarianaSilveiraGuerraMourae_D.pdf: 7030237 bytes, checksum: 410d6630399975dfb015ea26177e8d7f (MD5) Previous issue date: 2012<br>Resumo: A aquicultura mundial vem crescendo em ritmo acelerado nas últimas décadas, em função de vários fatores, entre eles: o aumento demográfico, a procura por alimento de baixa caloria e principalmente a redução dos estoques pesqueiros naturais. O Brasil tem

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Pouyaud, Laurent. "Génétique des populations de tilapias d'intérêt aquacole en Afrique de l'ouest. Relations phylogénétiques et structurations populationnelles." Montpellier 2, 1994. http://www.theses.fr/1994MON20082.

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L'étude de la variabilité génétique de plusieurs espèces de tilapias apporte un certain nombre de résultats à différents niveaux d'étude: A. Systématique: nous confirmons la classification des tilapias en trois genres: Tilapia, Sarotherodon et Oreochromis proposée par Trewavas (1983). Cependant, nous proposons de reconsidérer le statut taxinomique de certaines espèces du genre Sarotherodon qui semblent être soit plus proches du genre Oreochromis (s. Galilaeus), soit appartenir à un taxon distinct (s. Melanotheron). B. Phylogénétique: les espèces du genre tilapia qui pratiquent la ponte et l'in

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Ansah, Yaw Boamah. "Enhancing Profitability of Pond Aquaculture in Ghana through Resource Management and Environmental Best Management Practices." Diss., Virginia Tech, 2014. http://hdl.handle.net/10919/51122.

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The accelerating pace of growth of aquaculture in sub-Saharan Africa has received much positive appraisal because of the potential of the industry to contribute to economic development and food security by providing jobs and animal protein. Adoption of best management practices (BMPs) holds the potential to ameliorate the related environmental impacts of aquaculture, such as in the amounts of nutrients and sediment that will enter natural water bodies from earthen pond effluents. The goals of this study were to characterize adoption of aquaculture BMPs on small-scale, pond-based farms in Ghana

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Lima, Francisco Roberto dos Santos. "Effects of aeration afternoon and its interaction with storage density on water quality and growth of juveniles of Nile tilapia (Oreochromis niloticus)." Universidade Federal do CearÃ, 2015. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=14331.

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Conselho Nacional de Desenvolvimento CientÃfico e TecnolÃgico<br>The work consisted of two complete and following experiments. In the first study the objective was to verify the efficiency of the afternoon aeration in removing ammonia from Nile tilapia juveniles culture tanks. For this, four treatments with five repetitions each were adopted (8 fish per tank of 250 L; 1.03 Â 0.02 g). The negative control tanks have not received any aeration over the entire study. The schedules of daily aeration for the night aeration, afternoon aeration and afternoon plus night aeration treatments were the fol

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Velásquez, Yorcelis Carmelina Cruz. "Study on the locally available aquatic macrophytes as fish feed for rural aquaculture purposes in South America." Doctoral thesis, Humboldt-Universität zu Berlin, Landwirtschaftlich-Gärtnerische Fakultät, 2016. http://dx.doi.org/10.18452/17510.

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Zur Sicherung der Fischbestände muss die Aquakultur ihren Beitrag zur Weltfischversorgung weiter steigern. Solange jedoch die Fischfutter Produktion stark von der Gewinnung von Fischmehl abhängig ist, bestehen für die Aquakultur natürliche Begrenzungen und die Gefahr der Überfischung der Fischbestände bleibt erhalten. Wenn das Wachstumspotenzial der Aquakultur ausgeschöpft werden soll, müssen beträchtliche Mengen von Nährstoffeinträgen in Form von vollständigen Aquakultur-Mischfuttermitteln auf einer nachhaltigen Basis verfügbar sein. Aufgrund des gestiegenen Preises von kommerziellem Fischf

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Galagarza, Oscar Andres. "Establishment and Utilization of Tools for Enhancing Foodfish Health." Diss., Virginia Tech, 2018. http://hdl.handle.net/10919/91933.

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Aquacultured products assist the human demands for seafood so that foodfish supplies can remain sustainable and consistent. Although the fish-farming industry has seen dramatic growth and intensification in recent years, the latter has led to an increase in bacterial diseases and fish health management problems, resulting in major economic losses around the world. In addition to the lack of understanding of fish physiology, these complications are exacerbated by the inappropriate and controversial use of antibiotics. This work addressed these issues in striped catfish (Pangasius hypophthalmus

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Agbo, Nelson W. "Oilseed meals as dietary protein sources for juvenile Nile tilapia (Oreochromis niloticus L.)." Thesis, University of Stirling, 2008. http://hdl.handle.net/1893/984.

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One of the major problems facing aquaculture in Ghana is the non-availability of quality and affordable fish feeds. The present study investigated the nutritional suitability and cost-effectiveness of some Ghanaian oilseed by-products, soybean meal (Glycine spp), cottonseed meal (Gossypium spp), groundnut cake (Arachis hypogaea L.) and groundnut husk, as alternative protein sources to fishmeal (FM) in the diet of Nile tilapia (Oreochromis niloticus L.). The oilseed meals were used individually, as mixtures, as mixtures enriched with methionine and mixtures detoxified by heat processing (autocl

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Medina, Miles D. "Effect of Aquafeed on Productivity of Red Amaranth and on Water Quality under Aquaponic Cultivation." FIU Digital Commons, 2014. http://digitalcommons.fiu.edu/etd/1206.

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Aquaponics, the integrated production of fish and hydroponic crops in a recirculating system, is an intensive cultivation method in which metabolic fish wastes fertilize plants. This study compares the effects of two aquafeeds on Red amaranth (Amaranthus tricolor) productivity and on water quality under cultivation of Blue tilapia (Oreochromis aureus), with three aquaponic units (n=3) per treatment over a 60-day trial. The fishmeal-based control feed contains higher crude protein (40%) and phosphorus (1.12%) than the plant-based alternative feed (32% and 0.40%). The alternative feed resulted i

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Bowyer, Peter Hervé A. "Assessment of a solid-state fermentation product in contemporary and lupin-containing diets for commercial finfish." Thesis, University of Plymouth, 2016. http://hdl.handle.net/10026.1/6555.

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This body of research explores the dietary application of a bioactive, solid-state fermentation (SSF) product in contemporary and lupin-containing diets of Nile tilapia (Oreochromis niltoticus) and rainbow trout (Oncorhynchus mykiss). Consequently, the work provides holistic assessment of the influences of SSF products on animal health and performance; depending upon rearing temperature, nutritional physiologies, feed formulations and extrusion conditions; alongside information on the performance of lupins in aquafeeds. The SSF product (at 0.1 % inclusion) improved growth performance of Nile t

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Maigual, Enriquez Yemall Alexander. "Utilização de reator aeróbio de leito fluidizado com circulação em tubos concêntricos no tratamento de águas residuarias da produção intensiva de tilapia com recirculação da água tratada /." Ilha Solteira : [s.n.], 2011. http://hdl.handle.net/11449/99881.

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Orientador: Tsunao Matsumoto<br>Banca: Alexandre Ninhaus Silveira<br>Banca: Katt Reginal Lapa<br>Resumo: Sistemas de Recirculação para Aquicultura (SRA) possibilitam um meio alternativo de produção de peixes para áreas com limitada disponibilidade de água. Estes sistemas de cultivo intensivo de peixes oferecem potencial de produção em pequena escala assim como em grande escala, devido a recuperação de efluentes e a reutilização da água, produzindo volumes relativamente pequenos de resíduos líquidos e sólidos. O objetivo deste estudo foi determinar a eficácia do tratamento de águas residuárias

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Oral, Münevver. "Insights into isogenic clonal fish line development using high-throughput sequencing technologies." Thesis, University of Stirling, 2016. http://hdl.handle.net/1893/24909.

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Isogenic clonal fish lines are a powerful resource for aquaculture-related research. Fully inbred individuals, clone founders, can be produced either through mitotic gynogenesis or androgenesis and a further generation from those propagates fully inbred clonal lines. Despite rapid generation, as opposed to successive generation of sibling mating as in mice, the production of such lines may be hampered due to (i) potential residual contribution from irradiated gametes associated with poorly optimised protocols, (ii) reduced survival of clone founders and (iii) spontaneous arisal of meiotic gyno

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Petersen, Marcelo Guilhermino [UNESP]. "Análise de desempenho financeiro na piscicultura em tanque-rede." Universidade Estadual Paulista (UNESP), 2017. http://hdl.handle.net/11449/151668.

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Nietes-Satapornvanit, Arlene. "Sustainable development of export-orientated farmed seafood in Thailand." Thesis, University of Stirling, 2014. http://hdl.handle.net/1893/20283.

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Sustainable development of export-orientated farmed seafood in Thailand is a major issue which can impact local stakeholders as well as global food security. The major species taken into consideration in this research were initially the Pacific white shrimp (Litopenaeus vannamei), Nile tilapia (Oreochromis niloticus), giant freshwater prawn (Macrobrachium rosenbergii), and striped catfish (Pangasianodon hypophthalmus). After which more focus was placed on Pacific white shrimp, which is Thailand’s major cultured seafood being traded for export, and tilapia, which has potential for export but al

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