Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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    Review of climate control and space allowance during transport of pigs (version 1.0)
    Bracke, M.B.M. ; Herskin, M.S. ; Marahrens, M.A. ; Gerritzen, M.A. ; Spoolder, H.A.M. - \ 2020
    EURCAW-Pigs - 34 p.
    pigs - animal welfare - transport of animals - climate - space - meat animals - finishing - animal production - animal health - transport - animal behaviour - occupation
    Question to EURCAW-Pigs: To what extent can jute sacks as enrichment for pigs be scored as ‘edible’? : EURCAW’s response
    Bracke, M.B.M. - \ 2020
    EURCAW-Pigs - 4 p.
    pigs - animal welfare - animal husbandry - docking - tail biting - meat animals - finishing - piglets - animal production - animal behaviour - animal housing
    Skin lesions: indicator to assess the risks for tail biting in pig
    Patt, A.G. ; Ruis, M.A.W. ; Schubbert, A. - \ 2020
    Wageningen : EURCAW-Pigs - 2 p.
    pigs - animal welfare - animal husbandry - docking - tail biting - piglets - meat animals - finishing - indicators - space
    Suitability of enrichment materials: indicator to assess the risks for tail biting in pigs, indicator factsheet
    Ruis, M.A.W. ; Patt, A.G. - \ 2020
    Wageningen : EURCAW-Pigs - 2 p.
    pigs - animal welfare - animal husbandry - docking - tail biting - piglets - meat animals - finishing - indicators
    Fouling: indicator to assess the risks for tail biting in pigs, indicator factsheet
    Patt, A.G. ; Ruis, M.A.W. ; Schubbert, A. - \ 2020
    Wageningen : EURCAW-Pigs - 2 p.
    pigs - animal welfare - animal husbandry - docking - tail biting - piglets - meat animals - finishing - indicators - climate - space
    Tail injuries: indicator for tail biting in pigs, indicator factsheet
    Ruis, M.A.W. ; Patt, A.G. - \ 2020
    Wageningen : EURCAW-Pigs - 2 p.
    pigs - animal welfare - animal husbandry - docking - tail biting - piglets - meat animals - finishing - indicators
    Tail docking: how to recognize docked tails in pigs?: indicator factsheet
    Ruis, M.A.W. ; Patt, A.G. - \ 2020
    Wageningen : EURCAW-Pigs - 2 p.
    pigs - animal welfare - animal husbandry - docking - tail biting - piglets - meat animals - finishing - indicators
    Lameness: indicator to assess the risks for tail biting in pigs, indicator factsheet
    Patt, A.G. ; Ruis, M.A.W. ; Schubbert, A. - \ 2020
    Wageningen : EURCAW-Pigs - 2 p.
    pigs - animal welfare - animal husbandry - docking - tail biting - piglets - meat animals - finishing - indicators - lameness - health
    Climate in Pig Houses – Air Quality
    Vermeer, H.M. - \ 2019
    pigs - animal welfare - animal husbandry - piglets - meat animals - finishing
    Changes: Risk assessment, presentation Anita Hoofs, EURCAW-Pigs Regional meeting West, 2019
    Hoofs, A.I.J. ; Kluivers-Poodt, M. ; Peet-Schwering, C.M.C. van der; Vermeer, H.M. ; Peet, G.F.V. van der; Tobias, T. - \ 2019
    pigs - animal welfare - animal husbandry - docking - tail biting - piglets - meat animals - finishing
    Work Programme for EURCAW-Pigs : European Reference Centre for Animal Welfare – Pigs: 2019-2020
    Spoolder, H.A.M. - \ 2018
    WUR Livestock Research - 21 p.
    pigs - animal welfare - animal husbandry - transport of animals - slaughter - docking - tail biting - group housing - mixing - farrowing houses - farrowing - killing of animals - climate - space - fitness - handling - stunning - sows - boars - piglets - meat animals - finishing
    Emissiereductie door verneveling van probiotica over leefoppervlak : literatuurstudie en metingen bij vleesvarkens
    Ellen, H.H. ; Groenestein, K. ; Hol, J.M.G. ; Ogink, N.W.M. ; Pas, L. - \ 2015
    Wageningen : Wageningen UR Livestock Research (Livestock Research rapport 809) - 39
    varkens - slachtdieren - afmesten - probiotica - ammoniakemissie - geurstoffen - fijn stof - varkenshouderij - pigs - meat animals - finishing - probiotics - ammonia emission - odours - particulate matter - pig farming
    In twee identieke afdelingen met vleesvarkens is het effect gemeten van het aanbrengen van probiotica (PIP) via het vernevelen er van in de afdeling. Uit de gemeten waarden blijkt er geen significant effect te zijn van het toepassen van probiotica op de emissies van ammoniak (NH3), geur en fijnstof (PM10) en de concentratie van ammoniak.
    Impact of health status on amino acid requirements of growing pigs : towards feeding strategies for farms differing in health status
    Kampman-van de Hoek, E. - \ 2015
    Wageningen University. Promotor(en): Wouter Hendriks, co-promotor(en): Walter Gerrits; Alfons Jansman. - Wageningen : Wageningen University - ISBN 9789462573437 - 184
    varkens - afmesten - diergezondheid - aminozuren - voedingsstoffenbehoeften - voedingseiwit - aminozuurmetabolisme - stikstofretentie - immuniteitsreactie - immuunsysteem - varkensvoeding - diervoeding - pigs - finishing - animal health - amino acids - nutrient requirements - dietary protein - amino acid metabolism - nitrogen retention - immune response - immune system - pig feeding - animal nutrition

    Abstract

    There is large variation in the production performance of commercial growing-finishing pig farms. This variation even exists when pigs have a similar genetic background and fed similar diets. The health status is one of the major factors contributing to this large variation in pig performance, as activation of the immune system can decrease feed intake, body weight gain and increase nutrient utilisation for immune system functioning. As a consequence, amino acids (AA) are repartitioned from skeletal muscle deposition towards utilisation for immune system functioning. Current requirement estimates for growing-finishing pigs are formulated to maximize protein deposition for growth and do not take into account the increased utilization of AA for immune functioning as induced by health challenging conditions. This lack of knowledge hampers the ability of feed manufacturers to optimize diets and improve pig performance. The main objective of the present thesis was to quantify the effect of health status on AA requirements for body protein deposition and for immune system functioning of growing pigs.

    A health status web was developed as a tool to categorize growing-finishing pig farms on the basis of their health status. The health status web can be of use for feed manufacturers to develop targeted strategies to accommodate the nutritional requirements of pigs belonging to particular groups of farms sharing a common health status. A dose-response technique was developed, which is a simple, accu­rate technique to quantitatively estimate changes in AA requirements of individual meal-fed pigs. Nevertheless, a minimum time period of 21 days is required for each individual, which makes the technique inappropriate for studying the effect of immune system activation on AA requirements. The combined measurements of whole body N retention, plasma irreversible loss rate (ILR, i.e. the amount of free AA that disappears per unit of time from the plasma pool for protein synthesis or oxidation), urea entry and appearance of 13C into plasma proteins, provided insight into the consequences of immune system activation on AA metabolism.

    Pigs selected from a farm with a suboptimal health status had greater serum haptoglobin, lower serum albumin concentrations, and greater leukocyte counts in blood at the start of the experiment than pigs selected from a farm with a high health status, indicating a higher level of immune system activation. The occurrence of compensatory gain in pigs from a farm characterized as having a suboptimal health status proves, however, that it is difficult to maintain a contrast in health status, and that pigs can adapt quickly to a change in housing conditions. In the absence of effects on feed intake, health challenging conditions may affect performance due to alterations in post-absorptive AA metabolism, as also indicated by increased urinary N losses, and a tendency for a reduced N retention and a lower utilization of digestible N for N retention in pigs with a systemic inflammation, or by a reduction in faecal nutrient digestibility as indicated for dry matter and N in pigs from a farm with a suboptimal health status. The observed changes in protein and AA metabolism after immune stimulation imply that especially tryptophan may become limiting during immune system activation, whereas lysine becomes excessive. Furthermore, the utilization of methionine, tyrosine, and valine for immune system functioning seems to increase in pigs with a systemic lung inflammation. In addition, the dietary AA or protein supply was able to modulate the acute phase response pre- and post-challenge, stressing the importance of an adequate dietary AA supply for appropriate functioning of the immune system of growing-finishing pigs.

    Before implementing targeted feeding strategies for farms sharing a common health status, future research should be conducted to study the possible beneficial effects of increasing the dietary supply of particularly tryptophan, methionine, tyrosine, and valine relative to lysine for immune system function and for body protein deposition in pigs from farms with a different health status.

    Checklist aanpak staartbijten bij (biologische) varkens
    Bracke, M.B.M. ; Vermeer, H.M. ; Bokma-Bakker, M.H. ; Peet-Schwering, C.M.C. van der; Bolhuis, Liesbeth ; Leeijen, J. - \ 2012
    Lelystad : Wageningen Livestock Research
    varkenshouderij - staartbijten - risicofactoren - dierenwelzijn - diergedrag - varkens - pig farming - tail biting - risk factors - animal welfare - animal behaviour - pigs
    In dit document staat een lijst met risicofactoren die staartbijten in de hand kunnen werken. Tussen haakjes staat bij sommige risicofactoren een advies om problemen te voorkomen. Ook wordt aangegeven wat te doen bij acute problemen.
    Financiële consequenties van staartbijten bij varkens
    Zonderland, J.J. ; Bosma, A.J.J. ; Hoste, R. - \ 2011
    Lelystad : Wageningen UR Livestock Research (Rapport / Livestock Research, Wageningen UR 543)
    varkenshouderij - diergedrag - staartbijten - bedrijfsresultaten in de landbouw - schade - dierenwelzijn - pig farming - animal behaviour - tail biting - farm results - damage - animal welfare
    Report on the financial consequences of tail damage due to tail biting among pigs in conventional pig farms in the Netherlands.
    Incentive mechanisms for food safety control in pork supply chains : a study on the relationship between finishing pig producers and slaughterhouses in the Netherlands
    Wagenberg, C.P.A. van - \ 2010
    Wageningen University. Promotor(en): Bert Urlings; Jack van der Vorst, co-promotor(en): Ge Backus. - [S.l. : S.n. - ISBN 9789085857785 - 148
    voedselveiligheid - controle - voedselketens - overheidsbeleid - varkenshouderij - varkensvlees - varkens - afmesten - slachtdieren - slacht - nederland - ketenmanagement - agro-industriële ketens - food safety - control - food chains - government policy - pig farming - pigmeat - pigs - finishing - meat animals - slaughter - netherlands - supply chain management - agro-industrial chains
    Food borne illness today still results in high societal costs, even though FBOs have implemented food safety control systems. In addition, the susceptibility to food borne diseases of the human population is likely to increase in the coming decades. Thus food safety control needs to be improved. Since 2005, a new EU food safety policy aims to improve food safety through shifting primary responsibility for food safety from government to FBOs and through shifting food safety control from company level to supply chain level. This research aims to contribute to improvement of food safety by analyzing private incentive mechanisms aimed at food safety control on supply chain level. It focuses on the two stage supply chain between pig producers and slaughter company in the Netherlands.
    A framework for designing and developing incentive mechanisms for food safety control is developed. An incentive mechanism aimed at food safety control is defined as the set of the performance and compliance measurement system and the compensation scheme between buyer and supplier, which aims to induce the supplier to apply measures to control food safety hazards as the buyer requests. The framework includes all important characteristics of incentive mechanisms for food safety and their relationships. In this thesis the influence on supplier behaviour of four important characteristics of incentive mechanisms for food safety control are analysed, namely 1) the type of performance compensation, 2) the causes for variability in performance between suppliers, 3) the accuracy of a test to determine supplier performance, and 4) the reliability of information provided by the supplier. It uses different food safety hazards in pork: lesioned livers, Mycobacterium avium, and residues of antibiotics. Results show that a penalty for each lesioned liver was more effective to induce pig producers to use control measures than a collective premium. Variability in liver lesion prevalence between pig producers with a penalty for each lesioned liver occurred because each pig producer used different control measures with different effectiveness. The accuracy of a Mycobacterium avium test showed to have a significant impact on pig producer behaviour to use control measures if an incentive mechanism was in place. Finally, information about the use of antibiotics provided by pig producers without an incentive system for the reliability of the information was insufficiently reliable to guarantee absence of residues in pork. It is concluded in this thesis that private incentive mechanisms can be used to reduce opportunistic behaviour of pig producers, thereby improving food safety control on supply chain level and helping to raise food safety control to the next level. For optimal inducement it is important that the performance and compliance measurement system is attuned to the compensation scheme.
    Stoppen met couperen? Varkenshouders over staartbijten en staartcouperen
    Lauwere, C.C. de; Hoogendam, K. ; Zonderland, J. ; Bracke, M.B.M. - \ 2009
    Den Haag : LEI Wageningen UR (Rapport / LEI Wageningen UR 2009-097) - ISBN 9789086153824 - 60
    dierenwelzijn - couperen van de staart - staartbijten - varkenshouderij - varkens - animal welfare - docking - tail biting - pig farming - pigs
    Het ministerie van Landbouw, Natuur en Voedselkwaliteit heeft in haar Nota Dierenwelzijn en de Toekomstvisie Duurzame Veehouderij als doelstelling opgenomen om alle ingrepen bij dieren binnen 15 jaar tot het verleden te laten behoren. Het couperen van biggenstaarten is ook een ingreep. In dit onderzoek, dat is gefinancierd door het ministerie van LNV, staat de perceptie van gangbare varkenshouders ten aanzien van staartbijten en staartcouperen centraal. De gangbare sector ziet op dit moment couperen als een belangrijke - zo niet de belangrijkste - maatregel om staartbijten te voorkomen, en lange staarten als een risicofactor. In its Animal Welfare Policy Document and Vision for the Future of Sustainable Livestock, the Ministry of Agriculture, Nature and Food Quality (LNV) aims to abolish all interventions on animals within 15 years. Tail docking of piglets is one such intervention. This report, which was funded by the Ministry of LNV, focuses on the attitudes of conventional pig farmers to tail biting and tail docking. The conventional sector currently views docking as an important - if not the most important - measure for preventing tail biting, and long tails as a risk factor.
    Kruidenmengsel bestrijdt spoelworm enigszins
    Krimpen, M.M. van; Binnendijk, G.P. ; Borgsteede, F.H.M. ; Gaasenbeek, C.P.H. - \ 2007
    V-focus 4 (2007)6. - ISSN 1574-1575 - p. 40 - 42.
    varkenshouderij - varkens - afmesten - biologische landbouw - ascariasis - geneeskrachtige kruiden - biologische bestrijding - anthelmintica - pig farming - pigs - finishing - organic farming - herbal drugs - biological control - anthelmintics
    Het voeren van een kruidenmengsel bestaande uit tijm, citroenmelisse en zonnehoed bestrijdt een spoelworminfectie bij vleesvarkens in enige mate. Daarmee is dit middel als aanvulling alleen op laag geïnfecteerde bedrijven een optie. Voor de meeste biologische varkensbedrijven lijkt een chemisch ontwormmiddel de beste manier om een spoelwormbesmetting te beheersen
    Tweede kwartaal vleesvarkens: vlees duur verkocht
    Bolhuis, J. ; Wisman, J.H. - \ 2006
    Agri-monitor 2006 (2006)augustus. - ISSN 1383-6455 - 2
    bedrijfsresultaten in de landbouw - varkenshouderij - varkens - afmesten - veehouderijbedrijven - agrarische economie - farm results - pig farming - pigs - finishing - livestock enterprises - agricultural economics
    Vleesvarkensbedrijven konden het tweede kwartaal van 2006 door sterk aantrekkende prijzen met een bijzonder goed saldo afsluiten. Ook voor de rest van het jaar zijn de prijsverwachtingen positief. Daartegenover staan wel de toegenomen kosten voor mestafzet, die bij de saldoberekeningen niet mee worden genomen.
    Eerste kwartaal vleesvarkens: saldo vrijwel gelijk aan dat van begin 2005
    Bolhuis, J. ; Wisman, J.H. - \ 2006
    Agri-monitor 2006 (2006)mei. - ISSN 1383-6455 - 2
    bedrijfsresultaten in de landbouw - veehouderijbedrijven - varkenshouderij - varkens - afmesten - agrarische economie - farm results - livestock enterprises - pig farming - pigs - finishing - agricultural economics
    Voor de vleesvarkenshouders begon dit jaar matig, met name door hoge biggenprijzen. In de loop van maart herstelden de opbrengstprijzen waardoor het eerste kwartaal van 2006 toch nog een tevredenstellend resultaat opleverde.
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