PhD theses

All Wageningen University PhD theses

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    Wageningen PhD theses


    This database contains bibliographic descriptions of all Wageningen University PhD theses from 1920 onwards. It is updated on a daily basis by WUR Library.

    Author abstracts and/or summaries are added to all descriptions. A link to the full text dissertation is added to the bibliographic description. In a few cases, no electronic version is available, mostly because of copyright issues.

    Hard copies of all theses are available for loan at WUR Library. To request them, click the link Request this publication in the full record presentation. This is a fee based service.

    mail icon WUR Library, 9 july 2012

     

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Understanding entrepreneurship at the base of the pyramid in developing countries : insights from small-scale vegetable farmers in Benin [PhD thesis]
Full text publicly available; under embargo until:2019-12-22
Yessoufou, Ahoudou Waliou \ 2017
entrepreneurship - farmers - vegetables - small businesses - farm management - management science - benin - west africa
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New tuna regimes: governing sustainability and equity in the Western and Central Pacific Ocean [PhD thesis]
Yeeting, Agnes David \ 2017
fisheries - marine fisheries - tuna - sustainability - environmental policy - governance - economic policy - pacific ocean - environmental economics
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Trends and prospects for the productivity and sustainability of home garden systems in southern Ethiopia [PhD thesis]
Mellisse, Beyene Teklu \ 2017
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Exploiting whole genome sequence variants in cattle breeding : unraveling the distribution of genetic variants and role of rare variants in genomic evaluation [PhD thesis]
Zhang, Qianqian \ 2017
cattle - genomes - genetic variation - inbreeding - homozygosity - longevity - quantitative traits - animal breeding - animal genetics
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The genetic background of bovine alpha s1- and alpha s2-casein phosphorylation [PhD thesis]
Fang, Zih-Hua \ 2017
dairy cattle - alpha-s1-casein - alpha-s2-casein - phosphorylation - milk composition - milk proteins - genetic variation - genetic factors - animal genetics
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Water allocation under future climate change and socio-economic development : the case of Pearl River Basin [PhD thesis]
Yan, Dan \ 2017
water allocation - climatic change - socioeconomics - china
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Water use in a heavily urbanized delta : scenarios and adaptation options for sectorial water use in the Pearl River Basin, China [PhD thesis]
Yao, Mingtian \ 2017
water use - water management - water resources - socioeconomics - salt water intrusion - water deficit - china
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Feeling full and being full : how gastric content relates to appetite, food properties and neural activation [PhD thesis]
Camps, Guido \ 2017
appetite - appetite control - magnetic resonance imaging - neurophysiology - brain
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Non-digestible polysaccharides to support the intestinal immune barrier: in vitro models to unravel molecular mechanisms [PhD thesis]
Tang, Yongfu \ 2017
polysaccharides - health - immunomodulatory properties - homeostasis - intestinal diseases - human nutrition research
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Botryococcus braunii for the production of hydrocarbons and exopolysaccharides and the role of associated bacteria [PhD thesis]
Gouveia, João Diogo Guimarães \ 2017
biomass production - algae - algae culture - hydrocarbons - bacteria
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Multi-objective decision-making for dietary assessment and advice [PhD thesis]
Lemmen-Gerdessen, J.C. van \ 2017
questionnaires - food - fractionation - modeling - diet - food intake - decision making - diet counseling
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Reproductive adaptations to reduce locomotor costs in viviparous fish (Poeciliidae) [PhD thesis]
Full text publicly available; under embargo until:2019-12-19
Fleuren, Mike \ 2017
fishes - poeciliidae - reproduction - adaptation - vivipary - locomotion - biomechanics - zoology
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Rabies in Ethiopia: modelling the burden and the effectiveness of control [PhD thesis]
Full text publicly available; under embargo until:2019-12-18
Beyene, Tariku Jibat \ 2017
cattle - dogs - rabies - farmers - cattle farming - vaccination - business economics - cost effectiveness analysis - ethiopia - east africa
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Molecular assessment of muscle health and function : the effect of age, nutrition and physical activity on the human muscle transcriptome and metabolome [PhD thesis]
Hangelbroek, Roland W.J. \ 2017
muscles - age - nutrition - physical activity - transcriptomes - metabolomes - elderly - creatine - phosphocreatine - vitamin d - atrophy
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Valorisation of waste streams from by-product to worm biomass [PhD thesis]
Laarhoven, Bob \ 2017
biomass - residual streams - animal nutrition - fisheries - organic wastes - helminths

Abstract:
With an 8 % annual growth rate, aquaculture is the fastest growing food production sector in the world (FAO, 2008). It can only be sustainable if it is supported by a similar increase in feed production. This had led to several developments to reduce and replace the amount of fishmeal/ oil in fish diets by plant based ingredients originating from by-products or from crops specifically cultured for this purpose. Although plant oils and proteins are available in bulk amounts, their application in fish feed is questionable as it induces more pressure on land-use due to increased agricultural production and competes with present use as food or feed. This drives several alternative feed source developments which are based on the use of residual streams. Novel feed ingredients based on residual stream conversion can in general be subdivided into two major classes: Single cell protein, mainly from yeast, microalgae and bacteria. These novel feed ingredients have the potential to be more sustainable than fish and plant based proteins/oils if they can be effectively produced from residual nutrients, waste streams or low value by-products from e.g. food or agro industries.

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Using yield gap analysis to give sustainable intensification local meaning [PhD thesis]
Silva, João Vasco \ 2017
crops - yields - crop yield - modeling - simulation models - cereals - farming systems - yield losses
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Predicting methane emission of dairy cows using milk composition [PhD thesis]
Gastelen, Sanne van \ 2017
dairy cows - dairy cattle - methane production - emission - milk composition - fatty acids - cattle feeding - fermentation - nutrition physiology - animal nutrition - pollution
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Metabolic status, lactation persistency, and udder health of dairy cows after different dry period lengths [PhD thesis]
Hoeij, Renny van \ 2017
dairy cattle - animal health - animal behaviour - dry period - metabolism - energy balance - lactation - milk production - udders - cattle feeding
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Physiological responses of rice to increased day and night temperatures [PhD thesis]
Shi, Wanju \ 2017
crops - rice - oryza sativa - plant physiology - temperature - crop yield - grain - agronomy
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Foreign investment, organizational innovation and transformation in food supply chains : evidence from the Ethiopian barley sector [PhD thesis]
Tefera, Delelegne Abera \ 2017
foreign investment - organizations - innovations - management science - food supply - supply chain management - farmers - barley - economic sectors - ethiopia - east africa
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