Staff Publications

Staff Publications

  • external user (warningwarning)
  • Log in as
  • language uk
  • About

    '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.

    We have a manual that explains all the features 

Current refinement(s):

Records 1 - 20 / 154

  • help
  • print

    Print search results

  • export

    Export search results

  • alert
    We will mail you new results for this query: keywords==slacht
Check title to add to marked list
Assessing unconsciousness in livestock at slaughter
Verhoeven, Merel - \ 2016
Wageningen University. Promotor(en): Bas Kemp, co-promotor(en): Marien Gerritzen; L.J. Hellebrekers. - Wageningen : Wageningen University - ISBN 9789462579064 - 187
livestock - slaughter - animal welfare - stunning - electroencephalograms - animal behaviour - consciousness - animal production - animal health - pigs - cattle - sheep - vee - slacht - dierenwelzijn - bedwelmen - elektro-encefalogrammen - diergedrag - bewustzijn (consciousness) - dierlijke productie - diergezondheid - varkens - rundvee - schapen

Assessing unconsciousness in livestock at different stages of the slaughter process is a legal requirement according to EU legislation. The assessment can be based on absence of readily observable indicators (behavioural indicators, physical signs and reflexes) or, under experimental conditions, by recording and subsequent assessment of brain activity as presented in an electroencephalogram (EEG). There is no consensus, however, to what extent different behavioural indicators, physical signs and reflexes accurately reflect unconsciousness. The aim of this thesis was to study the relationships between these readily observable indicators and EEG activity to provide information on 1. the exact point in time at which animals lose consciousness when subjected to different stunning and slaughter methods and 2. the validity of behavioural indicators, physical signs and reflexes used to assess unconsciousness at slaughter under commercial conditions. The results showed a large variation in time to loss of consciousness, based on EEG activity, both between stunning and slaughter procedures and amongst animals. Captive bolt stunned calves lost consciousness instantly following the stun. Loss of consciousness in pigs during CO2 stunning varied from 21 to 61 s after start of the exposure. An increased CO2 concentration decreased the time to loss of consciousness. Times to loss of consciousness in sheep slaughtered without stunning varied from 6 to 24 s. In cattle slaughtered without stunning, times to loss of consciousness varied from 14 s up to over two minutes. Following captive bolt stunning in calves, absence of reflexes indicated unconsciousness. When consciousness was lost gradually (e.g. CO2 stunning and non-stunned slaughter) none of the readily observable indicators could identify the exact point in time at which animals lost consciousness. Absence of rhythmic breathing, corneal reflex- and eyelid reflex were valid indicators of unconsciousness following CO2 stunning and non-stunned slaughter, but these indicators were quite conservative as they were initially absent long after EEG activity indicated unconsciousness. When presence of these indicators would require (re)stunning, many animals will have to be (re)stunned. The results also showed that under full commercial conditions, stunning effectiveness must be closely monitored by slaughter plant employees, since risks for stun failures are higher under commercial conditions compared to experimental conditions.

Effect van verdoven en doden van drachtige dieren op de foetus en vaststellen van de incidentie van doden van (hoog)drachtige dieren in Nederland : welzijn van de foetus bij verdoven en slachten van drachtige dieren
Gerritzen, M.A. ; Dixhoorn, I.D.E. van; Hindle, V.A. ; Reimert, H.G.M. - \ 2016
Wageningen : Wageningen UR Livestock Research (Livestock research rapport ) - 17 p.
dierenwelzijn - dierlijke productie - schapen - rundvee - paarden - diergezondheid - slacht - animal welfare - animal production - sheep - cattle - horses - animal health - slaughter
Literature shows that unborn fetuses during the last third of gestation, are able to experience pain. It is suggested that suppressive factors cause a decreased level of consciousness during pregnancy in the fetus, and that, depending on species, the newborns become conscious after a few hours to several days or weeks after birth. About this reduced level of consciousness during gestation, opinions differ.
During slaughter and bleeding of the dam fetal oxygen level decreases resulting within a minute result in a flattening of the EEG, which is associated with unconsciousness. It is stated that, when using a proper method of killing, no discomfort can be apparent in the unborn fetus. In addition, it is recommended to leave the embryo within the uterus to prevent breathing and thereby prevent an increasing oxygen level as this would make it conscious. The newborn should then be stunned and killed separately.
There is a large variation in the number of slaughtered pregnant animals within the Netherlands. Pregnancy is not always detected and the duration of pregnancy is difficult to estimate. The uteri are left intact according to current recommendations.
On this basis, we conclude that given current knowledge and general opinion, welfare of the fetus is not at stake. New scientific experimental research should reveal the consciousness level of the fetus during slaughter and killing procedures to subscribe the current point of view.
Efficacy of the Dutch Vision high-low electrical head-only poultry stunner
Gerritzen, M.A. ; Hattum, T.G. van; Reimert, H.G.M. - \ 2015
Wageningen : Wageningen UR Livestock Research (Livestock Research report 442) - 22 p.
animal production - poultry - slaughter - animal welfare - animal health - dierlijke productie - pluimvee - slacht - dierenwelzijn - diergezondheid
The head-only high-low electrical stunner appears to be an effective stunning method for poultry. Well stunned birds remain unconscious for at least 60 seconds and therefore it is recommended that the stun-stick interval should not exceed 30 seconds.
Progress report validation of parameters to determine unconsciousness during slaughter of veal calves
Gerritzen, M.A. ; Verhoeven, H.A. ; Hindle, V.A. - \ 2015
Wageningen UR Livestock Research (Livestock Research rwport 405) - 28 p.
animal welfare - animal production - veal calves - animal health - slaughter - dierenwelzijn - dierlijke productie - vleeskalveren - diergezondheid - slacht
Research concerning slaughter without stunning of ruminants in The Netherlands
Gerritzen, M.A. - \ 2015
Wageningen UR Livestock Research (Livestock Research report 417) - 32 p.
animal welfare - animal production - cattle - goats - sheep - animal health - slaughter - dierenwelzijn - dierlijke productie - rundvee - geiten - schapen - diergezondheid - slacht
Bedwelmen aan boord
Sikkema, A. ; Vis, J.W. van de; Gerritzen, M.A. - \ 2015
Resource: nieuwssite voor studenten en medewerkers van Wageningen UR 9 (2015)15. - ISSN 1389-7756 - p. 12 - 13.
vissen - bedwelmen - slacht - dierenwelzijn - visserij - kweekvis - visteelt - wild gevangen vis - fishes - stunning - slaughter - animal welfare - fisheries - farmed fish - fish culture - wild caught fish
Wakker Dier voert de laatste weken actie tegen het onverdoofd slachten van vissen. Net als de kippen en varkens moeten de vissen worden verdoofd voor de slacht, vindt de actiegroep. Kan dat? De meeste kweekvis in Nederland wordt al verdoofd aan de slachtlijn, stellen Wageningse onderzoekers, maar de wilde vis uit de Noordzee nog niet. Om ook de schol en haring aan boord van het vissersschip verdoofd te kunnen slachten, is eerst meer onderzoek in het lab en op zee nodig.
Progress report validation of parameters to examine unconsciousness; Validation of parameters used to assess consciousness in sheep at slaughter
Gerritzen, M.A. ; Verhoeven, M.T.W. ; Kluivers-Poodt, M. ; Reimert, H.G.M. ; Anjema, D. - \ 2014
Lelystad : Wageningen UR Livestock Research (Report / Wageningen UR Livestock Research 380)
dierenwelzijn - dierlijke productie - schapen - diergezondheid - slacht - animal welfare - animal production - sheep - animal health - slaughter
Progress report restraining ruminants : Upright versus inverted restraining
Gerritzen, M.A. ; Reimert, H.G.M. ; Werf, J.T.N. van der; Hindle, V.A. ; Visser, E.K. ; Dixhoorn, I.D.E. van - \ 2014
Wageningen UR Livestock Research (Livestock Research report 379) - 42 p.
animal welfare - animal production - cattle - dairy cattle - animal health - slaughter - dierenwelzijn - dierlijke productie - rundvee - melkvee - diergezondheid - slacht
Vaststellen nul-situatie onverdoofd slachten van runderen en kleine herkauwers in Nederland in 2014
Gerritzen, M.A. ; Verkaik, J.C. ; Reimert, H.G.M. ; Hindle, V.A. - \ 2014
Wageningen UR Livestock Research (Livestock Research rapport 395) - 25 p.
dierenwelzijn - dierlijke productie - rundvee - geiten - schapen - diergezondheid - slacht - animal welfare - animal production - cattle - goats - sheep - animal health - slaughter
Analysis of animal welfare risks from unloading until slaughter: red meat livestock species
Visser, E.K. ; Ouweltjes, W. ; Spoolder, H.A.M. - \ 2014
Wageningen : WUR Livestock Research - 48
animal welfare - animal production - dairy cattle - beef cattle - pigs - sheep - horses - animal health - transport - slaughter - dierenwelzijn - dierlijke productie - melkvee - vleesvee - varkens - schapen - paarden - diergezondheid - slacht
Eindrapport Animal Welfare Check Points 2014
Visser, K.J. ; Vermeer, H.M. ; Ouweltjes, W. ; Kluivers-Poodt, M. ; Gerritzen, M.A. - \ 2014
Wageningen : Wageningen UR Livestock Research (Rapport / Wageningen UR Livestock Research 826) - 33
dierenwelzijn - varkenshouderij - slachtdieren - ketenmanagement - slacht - varkens - animal welfare - pig farming - meat animals - supply chain management - slaughter - pigs
Dit rapport betreft het laatste rapport van het project Animal Welfare Check Points (2012-2014) waarin vanuit de wetenschap en in de praktijk is gekeken naar het proces van laden, transporteren, lossen en verdoven van slachtdieren in Nederland.
Jaarrapportage onderzoek Animal Welfare Check Points 2013
Visser, E.K. ; Ouweltjes, W. ; Neijenhuis, F. ; Lourens, A. ; Werf, J.T.N. van der; Gunnink, H. ; Hindle, V.A. ; Verkaik, J.C. ; Binnendijk, G.P. ; Gerritzen, M.A. - \ 2014
Wageningen : Wageningen UR Livestock Research (Report / Wageningen UR Livestock Research 753) - 89
dierenwelzijn - transport - slacht - varkens - vleeskuikens - hennen - rundvee - schapen - geiten - diergezondheid - doden van dieren - dierlijke productie - protocollen - veevervoer - animal welfare - slaughter - pigs - broilers - hens - cattle - sheep - goats - animal health - killing of animals - animal production - protocols - transport of animals
Het project “Animal Welfare Check Points” heeft als doel het ontwikkelen van protocollen voor het beoordelen van het welzijn van slachtdieren tijdens het selecteren en voorbereiden op het primaire bedrijf, tijdens transport en op de slachterij. In de tweede fase van het onderzoek (2013) zijn gegevens verzameld om een idee te krijgen van de gemiddelden en spreiding van de welzijnsparameters in de praktijk. Daarnaast zijn ervaringen opgedaan met de toepassing van de protocollen in de praktijk, en waar nodig zijn protocollen verder aangescherpt.
Slaughterhouse Inspection (Egypt). Training Manual : Guidelines for the Planning and Organisation of Training Activities
Blomne Sopov, M. ; Ghouti, C.A. ; Benlafquih, R. ; Vugt, F. van; Latief, A.M.A. - \ 2014
Wageningen : Centre for Development Innovation, Wageningen UR - 53
dierenwelzijn - diergezondheid - slacht - dierlijke productie - opleiding - egypte - slachthuizen - inspectie - animal welfare - animal health - slaughter - animal production - training - egypt - abattoirs - inspection
The training manual was prepared for the inspectors of slaughterhouses in Egypt to support the training activities of the General Organization for Veterinary Services (GOVS). The manual has two main parts: 1. Overview on how to design, organize, implement and evaluate training programs in general 2. Recommendation on how to design and facilitate training programs for the inspectors of slaughterhouses. Report CDI-14-004.
Schadevrij op slachterij
Niekerk, T.G.C.M. van; Reuvekamp, B.F.J. ; Gunnink, H. - \ 2014
De Pluimveehouderij 44 (2014)4. - ISSN 0166-8250 - p. 28 - 30.
pluimveehouderij - hennen - dierenwelzijn - slacht - transport - vangen van dieren - beschadigingen - poultry farming - hens - animal welfare - slaughter - capture of animals - injuries
Een juist management op het legbedrijf kan dierschade bij vangen en vervoer van uitgelegde hennen tegen gaan, zo blijkt uit onderzoek in de winterperiode.
Verslag van het symposium Animal Welfare Check Points
Livestock Research, - \ 2013
Lelystad : Wageningen UR Livestock Research - 4
dierenwelzijn - transport - diergezondheid - dierlijke productie - slacht - slachtdieren - veevervoer - animal welfare - animal health - animal production - slaughter - meat animals - transport of animals
Verslag van het symposium Animal Welfare Check Points – Onderweg naar beter welzijn, gehouden in Lelystad op 27 november 2013.
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.
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.
Supervision of Pork Safety in the Netherlands, North Rhine-Westphalia and Lower Saxony
Wilke, T. ; Bondt, N. ; Oosterkamp, E.B. ; Wagenberg, C.P.A. van - \ 2012
Brussel : Wageningen UR (Report ) - 104
varkensvlees - voedselveiligheid - voedselinspectie - voedselketens - nederland - duitsland - vleesproductie - eu regelingen - voedingsmiddelenwetgeving - varkenshouderij - slacht - pigmeat - food safety - food inspection - food chains - netherlands - germany - meat production - eu regulations - food legislation - pig farming - slaughter
Report within SAFEGUARD work package 3.1, Final Version 2012-08-17
Bruises in Chilean cattle: their characterization, occurrence and relation with pre-slaughter conditions
Strappini, A.C. - \ 2012
Wageningen University. Promotor(en): Bas Kemp; Jos Metz, co-promotor(en): Klaas Frankena; C.B. Gallo. - S.l. : s.n. - ISBN 9789461732255 - 140
rundvee - kneuzingen - kneuzen - karakterisering - risicofactoren - slacht - slachthuizen - karkassen - bewerking - veevervoer - bedwelmen - chili - cattle - bruises - bruising - characterization - risk factors - slaughter - abattoirs - carcasses - handling - transport of animals - stunning - chile

Bruises on cattle carcass affect the quality of the meat and are indicators of poor welfare conditions. According to the literature the occurrence of bruises is related to pre- slaughter conditions, however their contribution is not clear for Chilean cattle. The aim of this thesis was to provide a better understanding of the relationship between pre-slaughter factors and the occurrence of bruises -from loading until slaughter- under Chilean conditions. Therefore in the first study slaughter records of two Chilean slaughterhouses were analysed.It showed that cows and oxen had higher risk to present bruises compared to steers and heifers. Moreover, animals that passed through a livestock market were more prone to present bruises than animals that came directly from the farm. A large difference in carcass bruise prevalence was found between slaughterhouses and this discrepancy was attributed to differences in the use of the Chilean scoring system and to several constraints of the system itself. Thus a new scoring system was developed and its reliability was assessed showing a highagreement when only one observer performs the scoring. An inventory of the gross characteristics of bruises, based on the refined bruising protocol, was carried out. Animals passing through a livestock market have more bruises than animals transported directly from the farm to the slaughterhouse. This thesis presents evidences of rough handling and animals beaten by sticks at markets.In the last study the causal event of bruises during the pre-slaughter periodwas assessed. It showed that rough handling due to inappropriate use of aids to drive animals during loading and unloading, and inadequate stunning facilities at the slaughterhouse were the areas of most risk for bruising. It was concluded that improvements in the design and maintenance of appropriate structures and training of stock people will reduce the occurrence of bruises and in consequence will lead to better welfare conditions of cattle for slaughter.

Mobiele slachterij haalbaar? : veehouders tonen interesse in mobiele slachtsystemen
Animal Sciences Group (ASG), ; Boxtel, M. van - \ 2011
Ekoland 32 (2011)11. - ISSN 0926-9142 - p. 27 - 27.
slacht - slachthuizen - slachtuitrusting - mobiele toepassingen - haalbaarheidsstudies - biologische landbouw - slaughter - abattoirs - slaughtering equipment - mobile applications - feasibility studies - organic farming
Een mobiele eenheid voor alleen het slachten, waarbij vervolgens het koelen, uitbenen en uitsnijden elders gebeurt, kan een oplossing zijn voor veehouders met bijzondere dieren als geiten of kalkoenen en voor terreinbeherende organisaties als staatsbosbeheer.
Check title to add to marked list
<< previous | next >>

Show 20 50 100 records per page

 
Please log in to use this service. Login as Wageningen University & Research user or guest user in upper right hand corner of this page.