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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    Effects of a commercial broiler enrichment programme with or without natural light on behaviour and other welfare indicators
    Jong, I.C. de; Gunnink, H. - \ 2019
    Animal 13 (2019)2. - ISSN 1751-7311 - p. 384 - 391.
    activity - bales - chickens - exploration - perches

    Commercial broiler production systems based on market initiatives to improve animal welfare beyond minimum legal requirements have emerged in several European countries. A common factor in the ‘higher welfare’ indoor systems is the application of environmental enrichment, with or without natural light, to promote locomotor activity and natural behaviours of the broiler chickens. In the current study, we evaluated the effects of a commercial enrichment programme for fast-growing indoor-housed broiler chickens, with or without natural light entering the broiler house. Enrichment materials were selected in relation to perceived minimal hygiene risk and ease of cleaning in between production cycles. Selected enrichments were a combination of wood shavings bales (1.5 bale/1000 chickens), round metal perches (2.7 m/1000 chickens) and metal chains as pecking objects (1/1000 chickens). Three treatments were studied: control (C) without enrichment and natural light, enriched (E) with enrichments as previously defined but without natural light and enriched plus natural light (EL) with enrichments as previously defined and natural light entrance. The experiment was carried out during five subsequent production cycles on one commercial broiler farm with three identical houses. EL could only be assigned to the middle house that was equipped with roof windows (light entrance area: 3% of floor space). C and E were in the two outer houses (alternated in between production cycles). Behaviour was observed during daytime at days 25 and 39 of age by scan sampling. Lameness, footpad dermatitis, hock burn, cleanliness and injuries were scored at the same ages, in addition to the response of the chickens to a novel object. Results showed that the treatments only affected broiler behaviour. E flocks showed significantly more resting as compared with EL and C. EL flocks showed significantly more walking, exploration and foraging behaviour as compared with E and C. Thus, broiler activity was highest in the EL treatment and lowest in the E treatment, with the C treatment in between. No treatment effects were found on the other welfare indicators and only a few tendencies for treatment effects were found for the novel object test, with E birds tending to be more reluctant to approach the object as compared with EL and C birds. We concluded that providing environmental enrichment and natural light-stimulated activity and natural behaviours in broiler chickens, whereas providing enrichment only seemed to have the opposite effect as compared with control flocks without enrichment.

    Fust in de bloembollenhandel : bedrijfseconomische evaluatie van systemen voor transport en bewaring van bollenteler tot afnemer
    Vroomen, C.O.N. de - \ 1987
    Den Haag : LEI (Onderzoekverslag / Landbouw-Economisch Instituut, Afdeling Tuinbouw 29) - 56
    balen - dozen - agrarische bedrijfsvoering - bloembollen - verpakken - kratten - bales - boxes - farm management - ornamental bulbs - packing - crates
    Bedrijfseconomische evaluatie van enkele fustsystemen die bij het transport van bloembollen worden gebruikt. Geconcludeerd wordt dat de bestaande systemen, bezien over de totale afzetketen, niet inefficient zijn en dat op dit moment geen vervangende nieuwe systemen op de markt zijn die tot vereenvoudiging en kostenbesparing leiden
    De invloed van een wisselende temperatuur op de kwaliteit van vleestomaten, verpakt in eenmalig houten fust
    Sonneveld - van Buchem, H. - \ 1985
    Wageningen : Sprenger Instituut (Rapport / Sprenger Instituut no. 2317) - 6
    balen - dozen - solanum lycopersicum - verpakken - prestatieniveau - kwaliteit - tomaten - bales - boxes - solanum lycopersicum - packing - performance - quality - tomatoes
    Na opslag gedurende 10 dagen bij continu 12, continu 16, continu 20 en afwisselend 1 dag 12 en 1 dag 20 graden Celsius, werd de invloed van condens op de kwaliteit van vleestomaten bepaald in de vorm van het percentage rot, percentage slap en percentage schimmel op de kroontjes
    Vergelijkend onderzoek van twee typen fust voor champignons bestemd voor verwerking
    Damen, P.M.M. - \ 1985
    Wageningen : Sprenger Instituut (Rapport / Sprenger Instituut no. 2313) - 11
    verpakken - balen - dozen - agaricus - vergelijkingen - packing - bales - boxes - agaricus - comparisons
    De beschreven vergelijkingsproef met de Triplett bakken van 40x30x15 cm en de grijze poolkist van 60x40x22 cm werd gedaan om de consequenties van het gebruik van een grotere fustmaat op de kwaliteit van champignons te onderzoeken. Naast de proefresultaten is een achttal konklusies vermeld
    Vergelijkend onderzoek van twee typen kunststoffust tegenover twee typen bestaand fust waar het betreft het resultaat van nadrogen en bewaren van tulpebollen en gladiolenknollen in dit fust
    Rudolpgij, J.W. ; Looijesteijn, F.X.C. ; Veltman, B.J.L. - \ 1974
    Wageningen : Sprenger Instituut (Rapport / Sprenger Instituut no. 1898) - 36
    balen - dozen - drogen - bloembollen - verpakken - tulipa - gladiolus - tulpen - opslag - bales - boxes - drying - ornamental bulbs - packing - tulipa - gladiolus - tulips - storage
    Mogelijkheden voor het gebruik van kisten voor opslag van landbouwprodukten op centrale bedrijven
    Kreyger, J. - \ 1962
    Wageningen : [s.n.] (Publikatie / I.B.V.L. Wageningen no. 67) - 8
    balen - dozen - verpakken - bales - boxes - packing
    Nieuwe ventilatiesysteem voor het drogen en bewaren van landbouwprodukten in kisten
    Bastelaere, G.R. van - \ 1962
    Wageningen : [s.n.] (Publikatie / I.B.V.L., Wageningen no. 76) - 6
    balen - dozen - verpakken - opslag - bales - boxes - packing - storage
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