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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    Format bedrijfsspecifiek hitteprotocol varkenshouderij
    Hoofs, A.I.J. ; Aarnink, A.J.A. - \ 2020
    Wageningen : Wageningen Livestock Research - 11 p.
    animal welfare - animal production - pigs - animal housing - climate - animal health
    Met behulp van dit format kun je als varkenshouder een bedrijfseigenhitteprotocol maken. Advies is om dit samen met je voorlichter(s), dierenarts en personeel(mits van toepassing) op te stellen. Advies is om dit samen met eventueel medewerkers, voorlichter(s) en dierenarts te doen.
    Tips om hittestress te beperken bij hoge buitentemperaturen
    Hoofs, A.I.J. ; Aarnink, A.J.A. - \ 2020
    Wageningen : Wageningen Livestock Research - 10 p.
    animal welfare - animal production - pigs - climate - animal housing - heat - animal health
    Bedrijfsspecifiek hitteprotocol levert varkensboer veel op
    Hoofs, Anita - \ 2020
    Development and internal validation of prediction models for colorectal cancer survivors to estimate the 1-year risk of low health-related quality of life in multiple domains
    Révész, Dóra ; Kuijk, Sander M.J. van; Mols, Floortje ; Duijnhoven, Fränzel J.B. van; Winkels, Renate M. ; Hoofs, Huub ; Kant, IJ. ; Smits, Luc J. ; Breukink, Stéphanie O. ; Poll-Franse, Lonneke V. van de; Kampman, Ellen ; Beijer, Sandra ; Weijenberg, Matty P. ; Bours, Martijn J.L. - \ 2020
    BMC Medical Informatics and Decision Making 20 (2020). - ISSN 1472-6947
    Cancer survivors - Colorectal cancer - Internal validation - Model development - Prediction models - Quality of life

    Background: Many colorectal cancer (CRC) survivors experience persisting health problems post-treatment that compromise their health-related quality of life (HRQoL). Prediction models are useful tools for identifying survivors at risk of low HRQoL in the future and for taking preventive action. Therefore, we developed prediction models for CRC survivors to estimate the 1-year risk of low HRQoL in multiple domains. Methods: In 1458 CRC survivors, seven HRQoL domains (EORTC QLQ-C30: Global QoL; cognitive, emotional, physical, role, social functioning; fatigue) were measured prospectively at study baseline and 1 year later. For each HRQoL domain, scores at 1-year follow-up were dichotomized into low versus normal/high. Separate multivariable logistic prediction models including biopsychosocial predictors measured at baseline were developed for the seven HRQoL domains, and internally validated using bootstrapping. Results: Average time since diagnosis was 5 years at study baseline. Prediction models included both non-modifiable predictors (age, sex, socio-economic status, time since diagnosis, tumor stage, chemotherapy, radiotherapy, stoma, micturition, chemotherapy-related, stoma-related and gastrointestinal complaints, comorbidities, social inhibition/negative affectivity, and working status) and modifiable predictors (body mass index, physical activity, smoking, meat consumption, anxiety/depression, pain, and baseline fatigue and HRQoL scores). Internally validated models showed good calibration and discrimination (AUCs: 0.83-0.93). Conclusions: The prediction models performed well for estimating 1-year risk of low HRQoL in seven domains. External validation is needed before models can be applied in practice.

    Review on farrowing housing and management
    Pedersen, L.J. ; Patt, A. ; Ruis, M.A.W. ; Hoofs, A.I.J. ; Vermeer, H.M. ; Kongsted, A. - \ 2020
    EURCAW-Pigs - 19 p.
    pigs - animal welfare - animal husbandry - farrowing houses - farrowing - sows - piglets - animal production - animal health - animal behaviour - animal housing
    Betere groei en gezondheid én minder bijters
    Hoofs, A.I.J. - \ 2019
    ‘Flexibel inspelen op kraamhok lastig’
    Hoofs, A.I.J. - \ 2019
    'Drinkt opfokzeug niet genoeg dan eet ze ook niet genoeg'
    Hoofs, Anita - \ 2019
    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
    Hokverrijking
    Kluivers-Poodt, M. ; Vermeer, H.M. ; Hoofs, A.I.J. ; Peet, G.F.V. van der; Nijhof, Gieneke - \ 2018
    Wageningen : Wageningen University & Research - 27
    Effects of loose housing and the provision of alternative nesting material on peri-partum sow behaviour and piglet survival
    Bolhuis, J.E. ; Raats-van den Boogaard, A.M.E. ; Hoofs, A.I.J. ; Soede, N.M. - \ 2018
    Applied Animal Behaviour Science 202 (2018). - ISSN 0168-1591 - p. 28 - 33.
    Behaviour - Enrichment - Loose housing - Nest-building - Parturition - Sow
    Sows are strongly motivated to perform nestbuilding behaviour before parturition. This behaviour is often restricted in commercial systems due to confinement of the sow and lack of suitable nesting material to be used on slatted floors. This study aimed to investigate effects of loose vs. crated housing and the provision of alternative nesting material on periparturient sow behaviour and piglet survival. In a 2 × 2 arrangement, sixty-eight sows were assigned to either loose housing or crates and were either or not provided with nesting material consisting of jute sacks and straw balls. All sows had a rope. Postures and manipulation of materials and pen were observed using 5 min scan sampling for the 12 h before and the 24 h after parturition. Behaviour during parturition was scored continuously and included nose-nose contact between sow and piglets and crushing incidences. No interactions between treatments were found. In the 12 h prepartum, loose housed sows showed less sitting (5 vs. 9%) and ventral lying (29 vs. 38%) and more lateral lying (33 vs. 23%) and floor manipulation (10 vs. 5%) than crated sows. During parturition, loose housed sows spent less time sitting (2 vs. 6%), had fewer postural changes (34 vs. 50), showed less fence manipulation (0.1 vs. 2%) and had more nose contact with piglets (56 vs. 19 times). Provision of nesting material increased pre-partum lying (63 vs. 57%), increased manipulation of materials (14 vs. 8%) and reduced manipulation of floor (5 vs. 10%) and fence (5 vs. 9%). During parturition, sows with nesting material showed less standing (6 vs. 10%) and more lying (90 vs. 84%). No effects were found on behaviour in the 24 h after parturition or on parturition duration (3.3 ± 0.1 h). During parturition, the times lying down and the number of piglets that died by crushing tended to be lower with provision of nesting material (0.1 vs. 0.3). In the 48 h after parturition, loose housed sows crushed more piglets. In conclusion, both loose housing and the provision of alternative nesting materials affected prepartum sow behaviour and resulted in less activity during parturition, with some tendencies for beneficial effects on (near-) crushing of piglets during this period. Thus, both loose housing and the provision of alternative nesting materials, likely particularly the jute sacks, have a beneficial effect on periparturient sow behaviour.
    Systeemomschrijving “Plateau 2.0”
    Hoofs, Anita - \ 2017
    Wageningen : Wageningen Livestock Research - 5
    dierenwelzijn - varkens - huisvesting, dieren - diergezondheid - diergedrag - animal welfare - pigs - animal housing - animal health - animal behaviour
    En varkenshok met plateau is een hok waarin varkens vrij beschikken over twee verblijfsniveaus, één op de begane grond en één op het plateau. Varkens kunnen gemakkelijk het plateau op - en aflopen via een trap. Bij toepassing van een plateau, dat voldoet aan de systeemomschrijving, mag het beschikbare vloeroppervlak van het plateau als beschikbaar vloeroppervlak meegerekend worden.
    Keeping pigs with intact tails: from science to practice
    Kluivers-Poodt, M. ; Dirx-Kuijken, N.C.P.M.M. ; Peet-Schwering, C.M.C. van der; Hoofs, A.I.J. ; Ursinus, W.W. ; Bolhuis, J.E. ; Peet, G.F.V. van der - \ 2016
    - p. 177 - 177.
    Vraagbaak Groepshuisvesting vroege dracht
    Hoofs, A.I.J. - \ 2015
    Wageningen UR Livestock Research
    In oktober organiseerden Wageningen UR en VarkensNET vier Wroeten met-sessies over Groepshuisvesting vroege dracht. De kennis, die tijdens deze bijeenkomsten en verschillende gesprekken is uitgewisseld, wordt nu aangeboden via de ‘informatie vraagbaak’. Hier vindt u nuttige informatie over groepshuisvesting in de vroege dracht. Met tips en adviezen waar u zelf ook direct mee aan de slag kunt. U kunt ook zelf een vraag stellen en daarmee bouwen we aan een lijst van veel gestelde vragen.
    Curly tails: the Dutch Approach
    Kluivers-Poodt, M. ; Dirx, N. ; Peet, C.M.C. van der; Hoofs, A. ; Ursinus, W.W. ; Bolhuis, J.E. ; Peet, G. van der - \ 2015
    In: Proceedings of the International conference on pig welfare - Improving pig welfare - what are the ways forward? Copenhagen, Denmark : - p. 108 - 108.
    Despite EU legislation and societal concerns, in current pig farming, most piglets are still tail docked. The pig farming sector would prefer to stop tail docking. However, without additional preventive measures, tail biting will likely increase. Several Dutch parties have designed the Declaration of Dalfsen, containing a careful road map towards curly tails. This map comprises a demonstration project, development of a toolbox and knowledge exchange, and aims at closing the gap between science and practice and relieving the anxiety and scepticism about keeping pigs with long tails in current systems. In 2014, very six weeks a batch of twelve undocked litters was included in the demonstration. Circumstances were optimized as much as possible, and additional enrichment was provided. Caretakers were coached to recognize early signs of animals at risk. Nonetheless, tail damage appeared. Mostly in individual animals, but occasionally as an outbreak at pen level (for which predictive correlates are searched). Remarkably, at three weeks of age, several piglets already showed bite marks at the tail. Attitudes of the caretakers changed during
    the year to a higher level of alertness and an active approach towards required management changes. A traffic light system was implemented to safeguard attention towards groups at risk. The use of some enrichment materials encountered practical problems, and labour required for adequate monitoring and providing materials was higher than expected. The toolbox is still being developed and tested, describing effective curative measures. A network of farmers keeping pigs with long tails was formed, to support exchange of knowledge and experiences. All knowledge gained will feed an educational programme for pig farmers and farm advisors to enable a responsible transition towards longer tails. The key to success of this approach is that pig farmers are at the steering wheel, with guidance from actors in the chain.
    Curly tails: the Dutch Approach
    Kluivers-Poodt, M. ; Dirx, N. ; Peet, C.M.C. van der; Hoofs, A. ; Ursinus, W.W. ; Bolhuis, J.E. ; Peet, G. van der - \ 2015
    Groepskraamsysteem: analyse van de ontwikkeling van zeugen, biggen en vleesvarkens
    Peet-Schwering, C.M.C. van der; Nieuwamerongen, S.E. van; Bolhuis, J.E. ; Troquet, L.M.P. ; Hoofs, A.I.J. ; Soede, N.M. - \ 2015
    Wageningen : Wageningen UR Livestock Research (Livestock Research rapport 880)
    zeugen - biggen - varkenshouderij - varkensfokkerij - varkens - spenen - kraamhokken - varkensstallen - diergedrag - prestatieniveau - biggen werpen - vee - dierenwelzijn - groepshuisvesting - sows - piglets - pig farming - pig breeding - pigs - weaning - farrowing pens - pig housing - animal behaviour - performance - farrowing - livestock - animal welfare - group housing
    Op VIC Sterksel is de ontwikkeling (groei, voeropname, gezondheid, sociaal gedrag, spelgedrag en beschadigend gedrag) van biggen die opgegroeid zijn in een groepskraamsysteem en na spenen gehuisvest zijn in een verrijkt hok in een groep van 40 biggen vergeleken met de ontwikkeling van biggen die opgegroeid zijn in een traditioneel kraamhok en na spenen als toom bij elkaar zijn gehouden in een gangbaar hok met 10 biggen. Bij opleg in de vleesvarkensstal zijn alle biggen opgelegd in traditionele vleesvarkenshokken met 12 dieren per hok. De bevindingen van het onderzoek bij de zeugen, biggen en vleesvarkens zijn beschreven in dit rapport.
    Wat zijn de laatste inzichten uit onderzoek rondom biggenopfok
    Hoofs, Anita - \ 2015
    pig farming - piglets - animal health - feed intake - optimization - returns - farm management - animal welfare - pig housing - animal housing - animal production
    Tips en aanbevelingen voor het succesvol houden van opfokzeugen
    Peet-Schwering, C.M.C. van der; Soede, N.M. ; Hoofs, A.I.J. ; Opschoor, C. - \ 2014
    Wageningen UR Livestock Research
    varkenshouderij - opfoktechnieken - zeugen - varkensstallen - diergezondheid - dierenwelzijn - groepshuisvesting - pig farming - rearing techniques - sows - pig housing - animal health - animal welfare - group housing
    Vanaf 2013 is groepshuisvesting van zeugen tijdens de dracht verplicht. Eén van de succesfactoren is een goede opfok van de opfokzeugen. Maar wat is een goede opfok? Welke factoren zijn belangrijk? Dat is beschreven in het Handboek Opfokzeugen. Het handboek bevat praktische en vaktechnische kennis en tips en aanbevelingen voor het succesvol houden van opfokzeugen. In deze flyer worden de tips en aanbevelingen uit het handboek kort beschreven.
    Invloed van mengmoment, leefoppervlak en hokverrijking op gedrag, beenwerk en productie van opfokzeugen tot en met de eerste worp = Influence of mixing moment, space allowance and enrichment on behaviour, leg soundness and production of gilts till first weaning
    Peet-Schwering, C.M.C. van der; Soede, N.M. ; Hoofs, A.I.J. ; Verheijen, R.G.J.A. ; Binnendijk, G.P. ; Opschoor, C. - \ 2014
    Wageningen : Wageningen UR Livestock Research (Rapport / Wageningen UR Livestock Research 784) - 64
    varkenshouderij - biggen - vrouwelijke dieren - zeugen - opfoktechnieken - diergedrag - invloeden - lichaamsconditie - dierenwelzijn - pig farming - piglets - female animals - sows - rearing techniques - animal behaviour - influences - body condition - animal welfare
    At Swine Innovation Centre Sterksel the effects of mixing moment, space allowance (from day 14 after birth till day 232) and enrichment on behaviour, leg soundness and production of gilts from day 14 after birth till first weaning were investigated. The results are described in this report.
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