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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    Data from: Simulated moult reduces flight performance but overlap with breeding does not affect breeding success in a long-distance migrant
    Mizumo Tomotani, Barbara ; Muijres, F.T. ; Koelman, Julia ; Casagrande, Stefania ; Visser, Marcel E. - \ 2017
    trade-off - pied flycatcher - high-speed camera - parental care - PIT-TAG - oxidative stress - plumage - Ficedula hypoleuca
    1. Long-distance migrants are time-constrained as they need to incorporate many annual cycle stages within a year. Migratory passerines moult in the short interval between breeding and migration. To widen this interval, moult may start while still breeding, but this results in flying with moulting wings when food provisioning. 2. We experimentally simulated wing gaps in breeding male pied flycatchers by plucking 2 primary feathers from both wings. We quantified the nest visitations of both parents, proportion of high-quality food brought to the nestlings and adults and nestlings condition. Differences in oxidative damage caused by a possible reduction in flight efficiency were measured in amounts of ROMs and OXY in the blood. We also measured how flight performance was affected with recordings of the male`s escape flight using high-speed cameras. Finally, we collected data on adult survival, clutch size and laying date in the following year. 3. “Plucked” males travelled a 5% shorter distance per wingbeat, showing that our treatment reduced flight performance. In line with this, “plucked” males visited their nests less often. Females of “plucked” males, however, visited the nest more often than controls, and fully compensated their partner’s reduced visitation rate. As a result, there were no differences between treatments in food quality brought to the nest, adult or chick mass or number of successfully fledged chicks. Males did not differ in their oxidative damage or local survival to the following year. In contrast, females paired with plucked males tended to return less often to breed in the next year in comparison to controls, but this difference was not significant. For the birds that did return there were no effects on breeding. 5. Our results reveal that wing gaps in male pied flycatchers reduce their flight performance, but when it occurs during breeding they prioritise their future reproduction by reducing parental care. As a result, there is no apparent detriment to their condition during breeding. Because non-moulting females are able to compensate their partner’s reduced care, there is also no immediate costs to the offspring, but females may pay the cost suffering from a reduced survival.
    Bestman, M.W.P. ; Verwer, C.M. ; Leenstra, F.R. ; Niekerk, T.G.C.M. van; Reuvekamp, B.F.J. - \ 2015
    De Pluimveehouderij 43 (2015)11. - ISSN 0166-8250 - p. 29 - 29.
    pluimveehouderij - snavelkappen - verenkleed - hennen - uitloop - biologische landbouw - dierenwelzijn - verenpikken - pluimvee - dierlijke productie - diergedrag - diergezondheid - poultry farming - debeaking - plumage - hens - outdoor run - organic farming - animal welfare - feather pecking - poultry - animal production - animal behaviour - animal health
    Onderzoek weerspreekt dat kippen met onbehandelde snavels eerder kaal en kaler worden dan behandelde hennen, zoals vaak wordt gesteld. Er is weinig verschil in verenkleed tussen bio- en vrije-uitloophennen.
    Robuuste dames
    Krimpen, M.M. van; Binnendijk, G.P. ; Anker, I. van den; Heetkamp, M.J.W. ; Kwakkel, R.P. ; Brand, H. van den - \ 2012
    De Pluimveehouderij 42 (2012)9. - ISSN 0166-8250 - p. 28 - 29.
    pluimveehouderij - hennen - eierproductie - huisvesting van kippen - stalklimaat - verenkleed - voeropname - dierlijke productie - dierenwelzijn - poultry farming - hens - egg production - chicken housing - stall climate - plumage - feed intake - animal production - animal welfare
    Het aanpassingsvermogen van leghennen is indrukwekkend. Andere temperatuur, andere huisvesting? De eierproductie blijft gewoon op peil! Onderzoek van WUR Livestock Research laat dat zien.
    Effect van verdunde praktijkvoeders op de kwaliteit van het verenkleed, gedrag en dierprestaties bij opfok- en leghennen
    Krimpen, M.M. van; Binnendijk, G.P. ; Diepen, J.T.M. van - \ 2012
    Lelystad : Wageningen UR Livestock Research (Rapport / Wageningen UR Livestock Research 534) - 36
    pluimveehouderij - hennen - verenpikken - dierenwelzijn - pluimveevoeding - verenkleed - voersamenstelling - diergedrag - dierlijke productie - poultry farming - hens - feather pecking - animal welfare - poultry feeding - plumage - feed formulation - animal behaviour - animal production
    Feeding diluted rearing and layer diets, by applying common dilution sources, resulted in increased feeding related behaviour of both rearing and laying hens. These changes in time budgets could contribute to reduced levels of feather pecking behaviour and feather damage in rearing and laying hens.
    Verenschade afgeremd
    Krimpen, M.M. van; Binnendijk, G.P. ; Bruin, W.W. de; Veer, R. de - \ 2010
    De Pluimveehouderij 40 (2010)16. - ISSN 0166-8250 - p. 26 - 27.
    verenpikken - pluimveehouderij - dierenwelzijn - pluimveevoeding - verenkleed - voersamenstelling - feather pecking - poultry farming - animal welfare - poultry feeding - plumage - feed formulation
    Verdund voer lijkt een onvermijdelijk onderdeel van een strategie tegen verenpikken. Het leidde in onderzoek tot de minste verenschade.
    Effect van verdund vezelrijk voer op ontwikkeling van verenschade en dierprestaties van opfok- en leghennen onder pikkerij-bevorderende omstandigheden = Effect of diluted NSP-high diets under feather pecking prone conditions on the development of feather damage and performance of rearing and laying hens
    Krimpen, M.M. van; Bruin, W.W. de; Veer, R. de; Binnendijk, G.P. - \ 2010
    Lelystad : Wageningen UR Livestock Research (Rapport / Wageningen UR Livestock Research 420) - 35
    pluimveehouderij - verenpikken - dierenwelzijn - pluimveevoeding - verenkleed - voersamenstelling - hennen - vezelrijke diëten - dierlijke productie - diergedrag - diergezondheid - poultry farming - feather pecking - animal welfare - poultry feeding - plumage - feed formulation - hens - high fiber diets - animal production - animal behaviour - animal health
    In this study, the effect of diluted NSP-high diets under feather pecking prone conditions, on the development of feather damage and performance of rearing and laying hens was investigated. Compared to hens fed undiluted diets, feather damage at the end of the laying period was reduced by 20% by feeding both diluted rearing and laying diets.
    Hongerige veren
    Emous, R.A. van; Veldkamp, T. - \ 2009
    De Pluimveehouderij 39 (2009)2. - ISSN 0166-8250 - p. 36 - 37.
    moederdieren - ouderdom - verenkleed - ruien - energie - energieopname - pluimveevoeding - dierenwelzijn - dams (mothers) - old age - plumage - moulting - energy - energy intake - poultry feeding - animal welfare
    Omdat moederdieren op oudere leeftijd al snel kaal worden hebben ze veel meer energie nodig voor onderhoud. Dit heeft gevolgen voor het voeren, blijkt uit een (Animal Sciences Group) ASG-studie
    Low Dietary Energy Concentration, High Nonstarch Polysaccharide Concentration, and Coarse Particle Sizes of Nonstarch Polysaccharides Affect the Behavior of Feather-Pecking-Prone Laying Hens
    Krimpen, M.M. van; Kwakkel, R.P. ; Peet-Schwering, C.M.C. van der; Hartog, L.A. den; Verstegen, M.W.A. - \ 2008
    Poultry Science 87 (2008). - ISSN 0032-5791 - p. 485 - 496.
    egg-production - performance - protein - strains - plumage - hybrids - layers - fiber - whole
    An experiment was conducted with 504 non-cage-housed ISA Brown laying hens from 18 to 40 wk of age to investigate the separate effects of dietary energy concentration, nonstarch polysaccharide (NSP) concentration, and particle sizes of added NSP source on the eating behavior, feather-pecking behavior, and hen performance of laying hens. Hens were allotted to 1 of 6 dietary treatments according to a 2 x 3 factorial arrangement, with 7 replicates per treatment. The factors were control and low energy concentration (2,825 vs. 2,540 kcal/kg), control and high NSP concentration (133 vs. 195 g/kg), and fine vs. coarse particle size of the added NSP source in the high-NSP diets. We hypothesized that eating time would be increased by feeding low-energy diets or coarsely ground, high-NSP diets, or both, resulting in reduced feather-pecking behavior, without negatively affecting hen performance. Energy reduction, NSP addition, and coarse grinding of NSP increased eating time by 14.2% (P = 0.001), 17.2% (P <0.001), and 7.9% (P = 0.075), respectively, compared with the control level of these factors. Addition of NSP decreased eating rate (g/min) by 21.0% (P = 0.010). Layers already performed gentle feather-pecking behavior during the fifth week of the rearing period. Dietary treatments did not affect the maximal level of feather condition scores, but arise of feather damage was delayed by 10 wk in hens fed low-energy, coarsely ground, NSP-rich diets compared with hens fed control diets. Hens fed the control NSP diets showed reduced culling rates, because of less cannibalistic pecking, when energy concentration was decreased (44.1 vs. 13.1%), whereas in the high-NSP diets, culling rate decreased slightly when hens were fed the low-energy diets (31.6 vs. 28.6%; P = 0.071). Hens that were fed the low-energy diets compensated for the 10% reduction in energy concentration by a 9.3% higher maximal feed intake (143.0 vs. 130.8 g/d). Hen performance and BW gain of the hens were not affected by dietary treatments. We concluded that hens that were fed low-energy or high (coarsely ground)-NSP diets spend more time on feed intake, compared with hens that were fed the control diets. As a result, hens in some treatments showed less feather-pecking behavior.
    Effects of dietary energy concentration, NSP concentration and particle sizes of NSP on digesta passage rate and gut development in laying hens
    Krimpen, M.M. van; Kwakkel, R.P. ; Peet-Schwering, C.M.C. van der; Hartog, L.A. den; Verstegen, M.W.A. - \ 2008
    Lelystad : Animal Sciences Group (Report / Animal Sciences Group 145) - 15
    pluimvee - pluimveehouderij - hennen - veevoeder - energiegehalte - verenkleed - verenpikken - poultry - poultry farming - hens - fodder - energy content - plumage - feather pecking
    Er is een lineair verband gevonden tussen de hoeveelheid NSP die een leghen dagelijks opneemt en de verblijfstijd van het voer in de krop en klier-/spiermaag. Dit verband was meer uitgesproken bij grove in plaats van bij fijne vezels. Hierdoor behoudt een leghen tussen de maaltijden door langer een verzadigd gevoel. Een hogere mate van verzadiging kan bijdragen aan een afnemende behoefte tot verenpikken
    Effect of nutrient dilution and Nonstarch Polysaccharide concentration in rearing and laying diets on eating behavior and feather damage of rearing and laying hens
    Krimpen, M.M. van; Kwakkel, R.P. ; Peet-Schwering, C.M.C. van der; Hartog, L.A. den; Verstegen, M.W.A. - \ 2008
    Lelystad : Animal Sciences Group (Report / Animal Sciences Group 146) - 29
    pluimveehouderij - pluimvee - hennen - verenpikken - verenkleed - poultry farming - poultry - hens - feather pecking - plumage
    Verstrekking van verdunde opfokvoeders verhoogde de voeropname van de kuikens vanaf de eerste levensweek. Het lijkt erop dat de kuikens het pikgedrag meer op het voer richten als het verdunningsniveau van het opfokvoer toeneemt. Dit kan leiden tot minder verenpikgedrag. In elk geval was bij leghennen op een leeftijd van 49 weken duidelijk minder schade aan het verenkleed als ze tijdens de opfokperiode 15% verdund voer kregen
    Feather pecking and feather loss
    Rodenburg, T.B. ; Koene, P. - \ 2004
    In: Welfare of the laying hen / Perry, G.C., Wallingford, Oxfordshire, England : CABI (Poultry science symposium series 27) - ISBN 9780851998138 - p. 227 - 238.
    hennen - dierenwelzijn - diergedrag - verenpikken - veren (vogel) - verenkleed - hens - animal welfare - animal behaviour - feather pecking - feathers - plumage
    Characterizing feather peckers seems a viable approach towards a better understanding of the problem of feather pecking. With our current state of knowledge on the causation of feather peckinq, the environmental factors that influence the development of feather pecking and the characteristics of feather peckers and non-feather peckers, it should be possible to achieve more control over the problem of feather pecking in European flocks
    Geen effecten van alternatieve voeders : proef met veerkwaliteit opfokvleeskuikenouderdieren
    Emous, R.A. van; Harn, J. van - \ 2003
    De Pluimveehouderij 33 (2003)46. - ISSN 0166-8250 - p. 12 - 13.
    pluimveevoeding - voersamenstelling - beschadigingen - verenkleed - veren (vogel) - diervoedering - vleeskuikenouderdieren - poultry feeding - feed formulation - injuries - plumage - feathers - animal feeding - broiler breeders
    Het Praktijkonderzoek van de Animal Sciences Group van Wageningen UR heeft een kortlopend onderzoek (van 0-10 weken leeftijd) gedaan naar het effect van verschillende gehaltes in het voer op de kwaliteit van het verenkleed bij opfokvleeskuikenouderdieren.
    Heritability of feather pecking and open-field response of laying hens at two different ages
    Rodenburg, T.B. ; Buitenhuis, A.J. ; Ask, B. ; Uitdehaag, K.A. ; Koene, P. ; Poel, J.J. van der; Bovenhuis, H. - \ 2003
    Poultry Science 82 (2003)6. - ISSN 0032-5791 - p. 861 - 867.
    tonic immobility - domestic chicks - behavior - selection - cannibalism - plumage - line
    The objective of the current study was to estimate heritabilities. (h(2)) of feather pecking and open-field response of laying hens at two different ages. An F-2 cross, originating from a high and a low feather pecking line of laying hens, was used for the experiment. Each of the 630 birds of the F-2 cross was subjected to an open-field test (individual, 10 min) at 5 and 29 wk of age and to a social feather pecking test (groups of five birds on wood shavings, 30 min) at 6 and 30 wk of age. Both tests were performed in a square open field (1.25 x 1.25 m). Behavior was recorded directly from a monitor. Heritabilities of feather pecking and open-field behaviors were calculated. In the open-field test at 5 wk of age, high h(2) were found for most traits, ranging from 0.20 for the frequency of flying to 0.49 for number of steps. In the social test at 6 wk, gentle feather pecking (0.12) and ground pecking (0.13) were found to be heritable. When both tests were repeated at 29 and 30 wk of age, h(2) estimates were lower for the open-field test, ranging from 0.10 for duration of sitting to 0.20 for latency to first step. In the social test, however, higher h(2) estimates of 0.15 for gentle feather pecking and 0.30 for ground pecking were found compared with 6 wk of age. In conclusion, gentle feather pecking and open-field behaviors may be used in selection against feather pecking.
    Analysis of the chicken genome : mapping of monogenic traits
    Ruyter-Spira, C.P. - \ 1998
    Agricultural University. Promotor(en): E.W. Brascamp; M.A.M. Groenen; M. Georges. - S.l. : S.n. - ISBN 9789054859598 - 134
    kippen - pluimvee - genomen - genkartering - genetische merkers - microsatellieten - koppeling - verenkleed - kleur - dwerggroei - nucleotidenvolgordes - genexpressie - insulineachtige groeifactor - biotechnologie - fowls - poultry - genomes - gene mapping - genetic markers - microsatellites - linkage - plumage - colour - dwarfism - nucleotide sequences - gene expression - insulin-like growth factor - biotechnology

    The development of genetic linkage maps in farm animals is progressing rapidly. Linkage maps can be used to identify genetic loci responsible for genetic variation in traits of economic importance. The ultimate goal is to find the underlying genes involved in these traits. To achieve this, the so called positional candidate gene approach is gaining in importance. This approach is based on the genetic localization of a trait using genetic linkage analysis in livestock species. Subsequent comparative mapping of the trait locus with the gene-rich maps of the human and the mouse may reveal candidate genes for the trait in question.

    For the construction of comparative maps the genetic localization of many genes needs to be determined. In this thesis, the development of highly informative microsatellite markers from expressed sequences, derived from a brain and embryonic cDNA library of the chicken, is described. In addition to this, a preliminary comparative map of the chicken is presented.

    The second objective of this thesis was to develop a quick and reliable method in order to localize monogenic traits. To achieve this, an already existing technique, called bulked segregant analysis, which has originally been used for the localization of monogenic traits in plants using random amplified polymorphic DNA markers (RAPDs), and restriction fragment length polymorhisms (RFLPs), was combined with the use of fluorescently labelled microsatellite markers. This method prooved to be very sensitive in detecting linked markers at greater genetic distances and the genetic map locations of the monogenic traits Dominant White ( I ) and Autosomal dwarfism ( adw ) were succesfully determined.

    Comparative mapping revealed that adw is located in a chromosomal region that is conserved between chicken, human and mouse. Interestingly, in the mouse the phenotype "Pygmy" , which shows a striking similarity to the Autosomal Dwarf phenotype in chickens, is also located in this region. The Pygmy phenotype arises from the inactivation of the High Mobility Group I-C ( HMGI-C ) gene. In the human, the HMGI-C gene is also located in the same conserved chromosomal segment. Fluorescent in situ hybridization of chicken metaphase chromosomes using the chicken HMGI-C gene as a probe, showed that the chicken HMGI-C gene is indeed located in the region of the adw locus. However, northern blot analysis showed no difference in the expression of the HMGI-C gene between adw and wild type chicken embryos. Also no mutations in the HMGI-C mRNA were detected. Finally, other candidate genes for both adw and I are proposed.

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