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.

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Association of natural (auto-) antibodies in young gilts with osteochondrosis at slaughter
Koning, D.B. de; Damen, E.P.C.W. ; Nieuwland, M.G.B. ; Grevenhof, E.M. van; Hazeleger, W. ; Kemp, B. ; Parmentier, H.K. - \ 2015
Livestock Science 176 (2015). - ISSN 1871-1413 - p. 152 - 160.
serum-free culture - growth cartilage - epiphyseal growth - immune-responses - growing gilts - dairy-cows - chondrocytes - pigs - proteoglycans - lesions
Osteochondrosis (OC) develops at a young age and has been associated with lameness and reduced longevity of sows. Early detection of OC is therefore beneficial for selection against OC. Possibly, immunological components within the blood may serve as an indicator for OC development and could therefore be used as a biomarker. Levels of naturally occurring (auto-) antibodies (N[A]Ab) have been associated with homeostatic imbalance and various forms of inflammation, and may have an association with OC. The aim of this study was to investigate possible associations between the presence and levels of N(A)Ab of the IgM and IgG isotypes at an early age with OC in growing gilts at slaughter (24 weeks of age). Plasma samples were obtained from 212 Topigs 20 (Dutch Large White x Dutch Landrace) gilts at 6, 10, and 24 weeks of age and analyzed for N(A)Ab titers against 11 (auto-) antigens using ELISA. After slaughter, the elbow, hock, and knee joints were macroscopically examined for OC status. Due to low prevalence of OC in the elbow joint (5.4%), the elbow joint was not taken into account in analyses. Significant (P=0.05) associations with OC in both the hock joint and at the animal level (all joints combined) were found for IgM titers against chondroitin sulfate A at 6 weeks of age (OR 1.4 and 1.5), actin at 6 weeks of age (OR 1.4 and 1.3), thyroglobulin at 24 weeks of age (OR 1.5 and 1.3), and IgG titers against insulin at 6 weeks of age (OR 1.7 and 1.4). Additionally, significant (P=0.05) associations with OC were found at the knee joint for IgM titers against albumin at 6 weeks of age (OR 2.3), at the hock joint for IgM titers against keyhole limpet hemocyanin at 6 weeks of age (OR 1.4), and at the animal level for IgM titers against actin at 24 weeks of age (OR 1.3). This study indicated for the first time associations between the presence and levels of N(A)Ab at a young age and OC at 24 weeks of age in breeding gilts.
Invloed emissiearm stalsysteem op uitval en voetzoollaesiescore
Harn, J. van; Huis in 't Veld, J.W.H. ; Ellen, H.H. - \ 2015
De Pluimveehouderij 45 (2015)5. - ISSN 0166-8250 - p. 2 - 24.
pluimveehouderij - huisvesting van kippen - vleeskuikens - voetzolen - laesies - voetziekten - dierenwelzijn - ammoniakemissie - diergezondheid - poultry farming - chicken housing - broilers - footpads - lesions - foot diseases - animal welfare - ammonia emission - animal health
Het emissiearm stalsysteem bleek geen invloed te hebben op het optreden van voetzoollaesies en uitval bij vleeskuikens. Het seizoen, de leeftijd van de moederdieren, het vakmanschap van de vleeskuikenhouder en bedrijfsspecifieke aspecten wel. Dit blijkt uit onderzoek van Wageningen Livestock Research.
Eindrapportage implementatie welzijnsmonitor vleeskuikens : rapportage voor deelnemende vleeskuikenhouders, slachterijen en dierenartspraktijken/
Jong, I.C. de; Gunnink, H. ; Hindle, V.A. - \ 2015
Wageningen : Wageningen UR Livestock Research (Livestock Research rapport 840) - 33
dierenwelzijn - vleeskuikens - pluimveehouderij - monitoring - diergezondheid - meting - protocollen - voetzolen - laesies - huisvesting van kippen - animal welfare - broilers - poultry farming - animal health - measurement - protocols - footpads - lesions - chicken housing
In this report the results of the project ‘Implementation of the broiler welfare assessment protocol’ are summarised and presented for the participating broiler farmers, slaughter plants and veterinarians. The following topics are discussed: validity and feasibility of measures, which measures need to be improved; possibility for simplification of the assessment protocol (reduction of assessment time); management changes and the effects: is the assessment protocol suitable to support farmers’ management?; feedback from the participants.
Associations of conformation and locomotive characteristics in growing gilts with osteochondrosis at slaughter
Koning, D.B. de; Grevenhof, E.M. van; Laurenssen, B.F.A. ; Hazeleger, W. ; Kemp, B. - \ 2015
Journal of Animal Science 93 (2015)1. - ISSN 0021-8812 - p. 93 - 106.
linear type traits - leg weakness - exterior traits - genetic correlations - epiphyseal growth - pigs - cartilage - sows - lesions - pathogenesis
Osteochondrosis (OC) and abnormalities in conformation and locomotive characteristics (CLC) have been associated with premature culling in sows. Several CLC have been suggested to be associated with OC and might help as an in vivo indicator for and increased risk of having OC. The aim of this study was to investigate associations of OC with CLC assessed at several ages in growing gilts from 2 separate experiments over the effects of dietary restriction (Exp. 1) and floor type (Exp. 2) on OC prevalence. In Exp. 1, gilts (n = 211) were subjectively assessed for CLC at, on average, 4, 9, 11, 16, and 24 wk of age. In Exp. 2, gilts (n = 212) were subjectively assessed for CLC at, on average, 4, 9, 11, 16, and 22 wk of age. Assessment was done on 10 conformation and 2 locomotive characteristics using a 9-point grading scale by 2 observers. At, on average, 27 wk of age in Exp. 1 and 24 wk of age in Exp. 2, gilts were slaughtered and the knee, elbow, and hock joints were macroscopically assessed for OC. The CLC most frequently associated with OC were O shape or X shape of the hind legs, straight or bowed hind legs, and straight or sickled hock. X-shaped hind legs were associated with OC at slaughter in the knee joint at 4, 9, and 24 wk of age and at the animal level (all joints taken together) at 4, 9, and 16 wk of age. Straight or bowed hind legs were associated with OC at slaughter in the knee joint at 4 and 11 wk of age; in the hock joint at 11 wk of age; and at the animal level at 4, 9, 11, and 22 wk of age. Straight or sickled hock was associated with OC at slaughter in the knee joint at 4 wk of age, in the hock joint at 9 and 22 wk of age, and at the animal level at 9 and 22 wk of age. Results show that several CLC assessed at several ages were associated with OC, but consistent associations of a type of CLC in every assessment could not be found. The associations of CLC with OC are, therefore, difficult to be used as an in vivo indicator of increased risk for OC.
Effect emissiearme huisvestingsystemen op uitval en voetzoollaesiescore bij vleeskuikens
Harn, J. van; Ellen, H.H. ; Riel, J.W. van; Huis in 'T Veld, J.W.H. - \ 2015
Wageningen : Wageningen UR Livestock Research (Livestock Research rapport 832) - 29
pluimveehouderij - huisvesting van kippen - vleeskuikens - ammoniakemissie - voetzolen - laesies - voetziekten - diergezondheid - dierenwelzijn - emissiereductie - stalklimaat - stalinrichting - ventilatie - poultry farming - chicken housing - broilers - ammonia emission - footpads - lesions - foot diseases - animal health - animal welfare - emission reduction - stall climate - animal housing design - ventilation
This report describes the result of a field study in which the effects of low emission housing systems on mortality rate and footpad dermatitis score of broilers was studied.
Prevalence of claw disorders in young HF-animals with and without grazing: 1. non infectious diseases
Brummelman, B. ; Holzhauer, M. ; Frankena, K. ; Lam, T.J.G.M. - \ 2014
Tijdschrift voor Diergeneeskunde 139 (2014)7. - ISSN 0040-7453 - p. 26 - 33.
rundveehouderij - weiden - klauwen - diergezondheid - begrazing - voetziekten - huisvesting van koeien - laesies - dierenwelzijn - dierlijke productie - melkvee - cattle husbandry - pastures - claws - animal health - grazing - foot diseases - cow housing - lesions - animal welfare - animal production - dairy cattle - dairy-cows - first lactation - foot lesions - risk-factors - lameness - cattle - conformation - herds - hemorrhages - pasture
Ter bestudering van prevalentie van en effect van weidegang op klauwaandoeningen bij jonge runderen werden 10 melkveebedrijven gevolgd (vijf met en vijf zonder weidegang) in een twee jaar lang durend longitudinaal onderzoek. De achterklauwen van veertig dieren, bij aanvang jonger dan twee jaar, werden tussen mei 2008 en februari 2010 iedere drie maanden beoordeeld. In dit artikel worden de niet infectieuze klauwaandoeningen besproken. De prevalentie van zoolzweren (0,1%) en witte lijn-laesies (2,6%) was zeer laag, terwijl de prevalentie van zoolbloedingen (ZB) vanaf een leeftijd van negen maanden al boven de 20 procent lag. Dieren met weidegang hadden aan het einde van het weideseizoen significant minder ZB dan de dieren zonder weidegang. In de stalperiode nam de prevalentie van ZB bij dieren met weidegang toe tot boven het niveau van dieren zonder weidegang. Na afkalven trad een duidelijke toename op van de prevalentie van ZB tot een maximum (59%) op een leeftijd van dertig maanden.
Footpad lesions in broiler chickens : practical tips on how to identify and prevent footpad lesions
Harn, J. van; Jong, I.C. de; Hindle, V.A. - \ 2014
Wageningen UR Livestock Research
pluimveehouderij - dierenwelzijn - laesies - voetziekten - diergezondheid - vleeskuikens - voetzolen - dierlijke productie - pluimvee - poultry farming - animal welfare - lesions - foot diseases - animal health - broilers - footpads - animal production - poultry
Footpad lesions in broiler chickens are caused by wet and sticky litter. Wet and sticky litter can be caused by many factors and the strategy to prevent this may vary from farm to farm. This flyer lists various measures that can be taken to prevent footpad lesions on the broiler farm.
Gering effect ouder-kind
Harn, J. van; Emous, R.A. van - \ 2014
De Pluimveehouderij 44 (2014)2. - ISSN 0166-8250 - p. 32 - 33.
pluimveehouderij - pluimveevoeding - vleeskuikenouderdieren - vleeskuikens - voetzolen - laesies - voetziekten - diergezondheid - dierenwelzijn - poultry farming - poultry feeding - broiler breeders - broilers - footpads - lesions - foot diseases - animal health - animal welfare
De invloed van ouderdierenvoeding op kuikenprestaties en voetzoollaesies was nog onbekend. Livestock Research deed daarom onderzoek
Rol van voer en broederij
Harn, J. van; Jong, I.C. de - \ 2014
De Pluimveehouderij 44 (2014)4. - ISSN 0166-8250 - p. 34 - 35.
pluimveehouderij - pluimveevoeding - energiegehalte - voetzolen - laesies - voetziekten - vleeskuikens - dierenwelzijn - voer - uitbroeden - poultry farming - poultry feeding - energy content - footpads - lesions - foot diseases - broilers - animal welfare - feeds - hatching
Livestock Research heeft het effect onderzocht van broedlocatie en energiegehalte van het voer op voetzoollaesies bij vleeskuikens.
Invloed van transport op de stressfysiologie van marktwaardige Afrikaanse meerval en Europese paling
Vis, J.W. van de; Schram, E. ; Boerrigter, J. ; Manuel, R. ; Heul, J.W. van der; Bos, R. van den; Hofman, A.R.T. ; Ros, N.A.M. ; Lambooij, E. ; Flik, G. - \ 2013
IJmuiden : IMARES Wageningen UR (Rapport / IMARES Wageningen UR C100/13) - 28
stressfysiologie - clarias gariepinus - european eels - transport - laesies - bloedplasma - visserij - dierenwelzijn - stress physiology - lesions - blood plasma - fisheries - animal welfare
Het onderzoek was gericht op effecten van praktijkgerichte transportcondities van marktwaardige Afrikaanse meerval (Clarias gariepinus) en Europese paling (Anguilla anguilla) op de relevante fysiologische parameters in het bloedplasma (cortisol, glucose en niet-veresterde vrije vetzuren) en mogelijke laesies van de huid.
Diet factors and subclinical laminitis score in lactating cows of smallholder dairy farms in Thailand
Pilachai, R. ; Schonewille, J.T. ; Thamrongyoswittayakul, C. ; Aiumlamai, S. ; Wachirapakom, C. ; Everts, H. ; Hendriks, W.H. - \ 2013
Livestock Science 155 (2013)2-3. - ISSN 1871-1413 - p. 197 - 204.
physically effective fiber - neutral detergent fiber - ruminal ph - milk-yield - cattle - forage - rumen - protein - lesions - digestibility
The objective of this study was to evaluate the importance of dietary crude protein (CP) content, dietary neutral detergent fiber (NDF) content and feeding regime as well as other factors related to management and demographics on the occurrence of (subclinical) laminitis under practical Thai feeding conditions. Hemorrhage of the white line and the sole, sole ulcer and white-line fissure of all four claws of milking cows (n=119) on 25 farms (selected based on the occurrence of lameness) were macroscopically assessed to calculate the prevalence of subclinical laminitis (SCL) on each farm. Data were collected on farm characteristics, feed and feeding management, floor type and hoof care. Dry matter intake was assessed on each farm and feed ingredients collected and analyzed for dry matter (DM), CP and NDF. No significant differences were found for farm characteristics such as herd size, number of milking cows, parity and body condition scoring between farms with a low (25%) of SCL. Percentages of DM and CP content of the rations did not differ, whereas mean NDF content in the ration was significantly higher in the low compared to the high prevalence farms. Multiple regression analysis of the data showed that a ration low in NDF content and/or in combination with the separate feeding of roughage and concentrate was associated with a high SCL prevalence. The results suggest that mixing concentrate with a substantial part of the roughage is an important strategy to prevent SCL in smallholder dairy farms under Thai feeding conditions. In addition, the dietary NDF content but not the dietary CP level is associated with SCL prevalence in dairy cows under Thai feeding conditions.
Evaluation Meyn Footpad Inspection system
Jong, I.C. de - \ 2013
Lelystad : Wageningen UR Livestock Research (Report / Wageningen UR Livestock Research 713) - 13
pluimveehouderij - slachthuizen - vleeskuikens - slachtdieren - slacht - laesies - inspectie - videocamera's - dierenwelzijn - voetziekten - voetzolen - pluimvee - dierlijke productie - diergezondheid - poultry farming - abattoirs - broilers - meat animals - slaughter - lesions - inspection - video cameras - animal welfare - foot diseases - footpads - poultry - animal production - animal health
This report describes the evaluation of an automated system to score footpad lesions at the slaughter plant.
The influence of dietary restriction before and after 10 weeks of age on osteochondrosis in growing gilts
Koning, D.B. de; Grevenhof, E.M. van; Laurenssen, B.F.A. ; Weeren, P.R. van; Hazeleger, W. ; Kemp, B. - \ 2013
Journal of Animal Science 91 (2013)11. - ISSN 0021-8812 - p. 5167 - 5176.
leg weakness - growth-rate - articular chondrocytes - genetic-parameters - epiphyseal growth - production traits - pigs - cartilage - lesions - pathogenesis
Osteochondrosis (OC) is one of the main causes of leg weakness causing premature culling in breeding sows and develops in a short time frame in young growing gilts. Dietary restriction may have different effects on OC prevalence depending on the age of the gilts. The aim of this study is to investigate age dependent effects of dietary restriction, ad libitum versus restricted (80% of ad libitum), on the occurrence of OC in gilts at slaughter (26 wk of age). At weaning (4 wk of age), 211 gilts were subjected to one of 4 treatments of feeding regime. Gilts were administered either ad libitum feeding from weaning until slaughter (AA); restricted feeding from weaning until slaughter (RR); ad libitum feeding from weaning until 10 wk of age, after which gilts were switched to restricted feeding (AR); or restricted feeding from weaning until 10 wk of age, after which gilts were switched to ad libitum feeding (RA). At slaughter, the elbow, hock, and knee joints were harvested. Joints were scored macroscopically for articular surface deformations indicative of OC. Gilts in the RA treatment had significantly higher odds to be affected with OC than gilts in the RR and AR treatments in the hock joint (OR = 3.3, P = 0.04 and OR = 8.5, P = 0.002, respectively), and at animal level (OR = 2.5, P = 0.001 and OR = 1.9, P = 0.01, respectively). Gilts in the AA treatment had higher odds to be affected with OC than gilts in the AR treatment in the hock joint (OR = 5.3, P = 0.01). The results indicate a possible pathway to reduce the prevalence of OC in breeding gilts which will have to last several parities. Switching from restricted feeding to ad libitum feeding after 10 wk of age increases OC prevalence as opposed to restricted feeding after 10 wk of age.
Evaluatie Meyn Footpad Inspection System = Evaluation Meyn Footpad Inspection System
Jong, I.C. de - \ 2013
Lelystad : Wageningen UR Livestock Research (Rapport / Wageningen UR Livestock Research 713) - 13
pluimveehouderij - slachthuizen - vleeskuikens - slachtdieren - slacht - laesies - voetzolen - voetziekten - inspectie - videocamera's - dierenwelzijn - pluimvee - dierlijke productie - diergezondheid - poultry farming - abattoirs - broilers - meat animals - slaughter - lesions - footpads - foot diseases - inspection - video cameras - animal welfare - poultry - animal production - animal health
This report describes the evaluation of an automated system to score footpad lesions at the slaughter plant.
Goed voor de portemonnee
Harn, J. van; Jong, I.C. de - \ 2013
De Pluimveehouderij 43 (2013)6. - ISSN 0166-8250 - p. 32 - 33.
pluimveehouderij - voetzolen - laesies - voetziekten - rendement - dierenwelzijn - kwaliteit - vleeskuikens - diergezondheid - pluimvee - dierlijke productie - poultry farming - footpads - lesions - foot diseases - returns - animal welfare - quality - broilers - animal health - poultry - animal production
Uit onderzoek van Livestock Research blijkt dat voetzoollaesies inperken financieel gunstig is.
Homocysteine, progression of ventricular enlargement, and cognitive decline. The Second Manifestations of ARTerial disease-Magnetic Resonance Study
Jochemsen, H.M. ; Kloppenborg, R.P. ; Groot, C.P.G.M. de; Kampman, E. ; Mali, W.P. ; Graaf, C. de; Geerlings, M.I. - \ 2013
Alzheimer's & Dementia 9 (2013)3. - ISSN 1552-5260 - p. 302 - 309.
brain atrophy - plasma homocysteine - risk-factor - folic-acid - probabilistic segmentation - elderly individuals - smart-mr - dementia - impairment - lesions
Background Homocysteine may be a modifiable risk factor for cognitive decline and brain atrophy, particularly in older persons. We examined whether homocysteine increased the risk for cognitive decline and brain atrophy, and evaluated the modifying effect of age. Methods Within the Second Manifestations of ARTerial disease-Magnetic Resonance study—a prospective cohort study among patients with atherosclerotic disease—longitudinal analyses were performed in 663 patients (mean age: 57 ± 9 years; follow-up: 3.9 ± 0.4 years). At baseline and follow-up, brain segmentation on magnetic resonance imaging was used to quantify relative (%) cortical, ventricular, and global brain volumes, and z-scores of memory and executive functioning were calculated. Linear regression analysis was used to estimate associations of homocysteine (per standard deviation increase) and hyperhomocysteinemia (HHCY) with brain volumes, memory, and executive functioning at follow-up, adjusted for baseline brain volume, memory, and executive functioning, respectively, and age, sex, and vascular risk factors. Furthermore, interaction terms between homocysteine and age (continuous) were added. Results Significant interactions were observed between total plasma homocysteine (tHcy) and age with cortical, ventricular, and global brain volume (for all three measures: P <.05), and between HHCY and age with executive functioning (P = .04), and results were stratified by age. In patients aged =65 years, increasing tHcy level and HHCY were significantly associated with progression of ventricular enlargement (B = 0.07%, 95% confidence interval [CI]: 0.01% to 0.13% and B = 0.16%, 95% CI: 0.01% to 0.31%, respectively) and with a decline in executive function (B = -0.29, 95% CI: -0.54 to -0.04 and B = -0.84, 95% CI: -1.37 to -0.32, respectively). Conclusion Elevated tHcy was related to progression of ventricular enlargement and increased the risk for a decline in executive functioning in older persons
Longevity as an Animal Welfare Issue Applied to the Case of Foot Disorders in Dairy Cattle
Bruijnis, M.R.N. ; Meijboom, F.L.B. ; Stassen, E.N. - \ 2013
Journal of Agricultural and Environmental Ethics 26 (2013)1. - ISSN 1187-7863 - p. 191 - 205.
quality-of-life - locomotion score - milk-production - cows - lameness - behavior - agriculture - systems - lesions - ethics
In current dairy farming it is possible to run a profitable farm without having to adapt the system to the needs of dairy cows. In such systems the interests of the farmer and animals often diverge. Consequently, specific animal welfare problems occur. Foot disorders in dairy cattle are an illustrative example resulting from the specific methods of housing and management in current dairy farming. Foot disorders and the resulting lameness are considered the most important welfare problem in dairy farming. However, these foot disorders not only typify welfare problems related to certain housing systems, but they also lead to the premature culling of cows. The assessment of the impact of foot disorders on the welfare of dairy cows raised the question of whether premature culling affects animal welfare since it affects the longevity of a cow. We argue that this aspect of longevity is morally relevant as an animal welfare issue. In this paper we aim to explore whether longevity is both (a) a morally relevant aspect in the discussion on killing animals and (b) a constitutive element of animal welfare. In other words, we aim to explore whether longevity is an independent moral argument in an animal welfare discussion. We claim that longevity is not merely important as an indicator of animal welfare, but is also a constitutive element of animal welfare. We argue that we need a more integrated approach to animal welfare and that an assessment that includes the aspect of time is necessary. This view involves a shift from views on animal welfare in terms of functioning or feeling well to a view on animal welfare that includes the aspect of natural living in which species-specific development is important. To show the impact of these points of view, we look at the practical implications for choices concerning the management of foot disorders in dairy cattle.
Kosten en baten
Harn, J. van; Vermeij, I. ; Jong, I.C. de - \ 2012
De Pluimveehouderij 42 (2012)11. - ISSN 0166-8250 - p. 30 - 32.
pluimveehouderij - voetzolen - laesies - voetziekten - vleeskuikens - diergezondheid - dierenwelzijn - dierlijke productie - poultry farming - footpads - lesions - foot diseases - broilers - animal health - animal welfare - animal production
Welk effect hebben maatregelen tegen voetzoollaesies bij vleeskuikens op het saldo van een vleeskuikenbedrijf? Een overzicht.
A longitudinal study into the effect of grazing on claw disorders in female calves and young dairy cows
Holzhauer, M. ; Brummelman, B. ; Frankena, K. ; Lam, T.J.G.M. - \ 2012
The Veterinary Journal 193 (2012)3. - ISSN 1090-0233 - p. 633 - 638.
digital dermatitis - risk-factors - sole hemorrhages - milk-production - new-zealand - lameness - prevalence - cattle - lesions - netherlands
To estimate the prevalence of claw disorders in youngstock and first parity heifers and to evaluate the effect of grazing on claw disorders, 10 Dutch dairy herds participated in a 2-year longitudinal study. Five herds were zero-grazed, while in the other five herds cows and youngstock had access to pasture during the summer. Twenty female calves 15%. The prevalence of DD increased considerably around first calving on both the grazing and the zero-grazing farms. The prevalence of IDHE increased with age while SH prevalence showed a more fluctuating pattern. Digital dermatitis was less frequently observed in pastured animals than in permanently housed animals (OR = 0.12–0.64 depending on month of observation; P <0.05), with the strongest effect being seen during the period when the herds which grazed cattle actually had animals at pasture (May to August). Grazing was also associated with lower levels of IDHE and SH, again particularly during the grazing season.
Leren van collega's
Jong, I.C. de; Harn, J. van; Gunnink, H. ; Lourens, A. - \ 2012
De Pluimveehouderij 9 (2012). - ISSN 0166-8250 - p. 32 - 33.
pluimveehouderij - voetzolen - laesies - voetziekten - diergezondheid - dierenwelzijn - vleeskuikens - agrarische bedrijfsvoering - pluimvee - dierlijke productie - poultry farming - footpads - lesions - foot diseases - animal health - animal welfare - broilers - farm management - poultry - animal production
Grote verschillen tussen bedrijven in voetzoolproblemen wekken het idee dat kuikenhouders van elkaar kunnen leren. WUR Livestock Research is daar in de praktijk ingedoken.
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