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


Records 1 - 20 / 54

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Nutrient yield from starch in pigs : consequences for energy balance and meal patterns [PhD thesis]
Erp, Rik J.J. van \ 2019
A value chain perspective to the control of avian influenza in the Western Java poultry sector [PhD thesis]
Indrawan, Dikky \ 2019
Relations between ovarian & embryonic traits in pigs : effects of genetic selection for litter traits at birth [PhD thesis]
Lima Alvares Da Silva, Carolina \ 2018
A generic method to analyse yield gaps in feed-crop livestock systems [PhD thesis]
Linden, Aart van der \ 2017
animal production - fodder crops - livestock feeding - crop production - crop yield - crop ecology - quantitative analysis - beef production - farming systems
Bringing eggs and bones to light : affecting leg bone development in broiler chickens through perinatal lighting schedules [PhD thesis]
Pol, Carla W. van der \ 2017
broilers - limb bones - biological development - embryonic development - eggs - light regime - incubation - hatching - circadian rhythm - animal pathology - animal health - poultry farming

Leg bone pathologies are a common problem in broiler chickens, and they can lead to decreased welfare and poor production performance. It can be speculated that the aetiology of some leg bone pathologies lies, to some extent, in suboptimal early life bone development. One factor that can be speculated to affect bone development, and consequently leg health, in broiler chickens is application of light. Light has several properties, such as light intensity, color, duration, and schedule. The present thesis focuses on lighting schedules. Aim was to investigate how lighting schedules applied during incubation and in the early post hatch period (the brooding period) affected leg bone development throughout a broiler’s life and leg health at slaughter age.

Feeding Dar es Salaam: a symbiotic food system perspective [PhD thesis]
Wegerif, Marc C.A. \ 2017
agricultural society - rural society - farmers' markets - food products - agricultural products - supermarkets - rice - grain - tanzania - east africa
Nutrition of pigs kept under low and high sanitary conditions : effects on animo acid and energy metabolism and damaging behaviour [PhD thesis]
Meer, Yvonne van der \ 2017
pigs - feeds - pig feeding - animal nutrition - amino acid metabolism - animal health - energy metabolism - abnormal behaviour - behaviour disorders - immune system - nutrition physiology
Transmission of antibiotic resistance from animals to humans : broilers as a reservoir of ESBL-producing bacteria [PhD thesis]
Huijbers, Patrica M.C. \ 2016
broilers - man - disease transmission - antibiotic resistance - bacteria - enterobacteriaceae - poultry farming - epidemiology
Assessing unconsciousness in livestock at slaughter [PhD thesis]
Verhoeven, Merel Theresa Willemijn \ 2016
livestock - slaughter - animal welfare - stunning - electroencephalograms - animal behaviour - consciousness - animal production - animal health - pigs - cattle - sheep
Linking early life conditions to osteochondrosis prevalence in gilts [PhD thesis]
Koning, D.B. de \ 2015
gilts - osteochondritis - pig feeding - floor type - conformation - locomotion - antibodies - carbohydrate-rich foods - arginine - feed supplements - animal health
Replacing lactose from calf milk replacers : effects on digestion and post-absorptive metabolism [PhD thesis]
Gilbert, Myrthe S. \ 2015
veal calves - lactose - filled milk - polysaccharides - glucose - fructose - glycerol - starch digestion - metabolism - fermentation - calf feeding - animal nutrition - nutrition physiology
Keeping goats or going north? : enhancing livelihoods of smallholder goat farmers through brucellosis control in Mexico [PhD thesis]
Oseguera Montiel, D. \ 2014
goats - brucellosis - small farms - livelihood strategies - brucella - animal diseases
Improvement of energy and nitrogen utilisation in pork production : genetics and growth models [PhD thesis]
Shirali, M. \ 2014
animal breeding - pigs - animal production - growth models - genetics - nitrogen - excretion - feed conversion efficiency
Assessing welfare of veal calves on farms : measures of behaviour and respiratory disorders and potential ways for welfare improvement [PhD thesis]
Leruste, H. \ 2014
animal welfare - veal calves - animal behaviour - animal husbandry - respiratory diseases

Vleeskalveren zijn jonge runderen die geslacht worden op een leeftijd van maximaal 8 maanden. Vleeskalveren worden gehouden om mals en lichtroze vlees te produceren. Hiertoe worden ze op gespecialiseerde bedrijven gehouden waar ze gevoerd worden met hoofdzakelijk kunstmelk en vast voer (i.e. krachtvoer, maïssilage, stro). In de Europese Unie (EU), minimumnormen voor welzijn en huisvestingcondities voor vleeskalveren zijn gereguleerd via de EU richtlijnen. Deze minimumnormen garanderen niet noodzakelijkerwijze dat het welzijnsniveau van de kalveren altijd optimaal is, aangezien huisvesting- en managementcondities tussen bedrijven kunnen verschillen. Burgers willen geïnformeerd worden over het werkelijke welzijnsniveau van dieren op boerderijen en daardoor ook een noodzaak voor een wetenschappelijk onderbouwde welzijnsmaatlat. De EU heeft van 2004 to 2009 een onderzoeksproject gefinancierd genaamd Welfare Quality® met als doelstelling “het ontwikkelen van een gestandaardiseerd dierenwelzijnsmonitor” en “het identificeren van praktische oplossingen voor het verbeteren van dierenwelzijn”. Dit proefschrift heeft bijgedragen aan het ontwerpen van een welzijnsmonitor op bedrijfsniveau voor vleeskalveren met als specifieke doelstelling de kwaliteit van de verschillende waarnemingen te toetsen betreffende hun validiteit, betrouwbaarheid en uitvoerbaarheid. Verder is voor elke waarneming gekeken naar specifieke risicofactoren voor een verlaagd dierenwelzijn op in totaal 174 kalverbedrijven in de drie belangrijkste vleeskalverproductielanden in Europa (Frankrijk, Nederland en Italië).

The Isolated Chicken Eye test to replace the Draize test in rabbits : from development to implementation: “The long and winding road” [PhD thesis]
Prinsen, M.K. \ 2014
eyes - rabbits - fowls - laboratory animals - animal testing alternatives - animal experiments - toxicity - toxicology - histopathology - animal welfare

Dit proefschrift beschrijft de ontwikkeling, optimalisatie, validatie (binnen TNO) en toepassing van een alternatieve test met geïsoleerde ogen van kippen (de Isolated Chicken Eye, kortweg de ICE test) en in bredere zin de internationale validatie en acceptatie van de ICE test door overheidsinstanties.

Unveiling causes for growth retardation in piglets [PhD thesis]
Paredes Escobar, S. \ 2014
piglets - growth - fattening performance - birth weight - weaning weight - feeds - growth retardation - insulin resistance - pig feeding - animal nutrition - nutrition physiology
Effects of hatching time and hatching system on broiler chick development [PhD thesis]
Ven, L.J.F. van de \ 2012
broilers - chicks - artificial hatching - brooders - postnatal development - hatching factors - hatcheries - animal physiology - growth - feeding - poultry farming
Bruises in Chilean cattle: their characterization, occurrence and relation with pre-slaughter conditions [PhD thesis]
Strappini, A.C. \ 2012
cattle - bruises - bruising - characterization - risk factors - slaughter - abattoirs - carcasses - handling - transport of animals - stunning - chile
Breeding against osteochondrosis : phenotypic and genetic analyses in horses and pigs [PhD thesis]
Grevenhof, I. van \ 2011
horses - pigs - osteochondritis - pig breeding - horse breeding - genetic parameters - genetic analysis - joints (animal) - skeletal development - animal breeding
Perinatal development and nutrient utilization in chickens : effects of incubation conditions [PhD thesis]
Molenaar, R. \ 2010
broilers - eggs - embryonic development - embryology - incubation - nutrition physiology - broiler performance - animal physiology
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