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Author

Jasper Heerkens

Observed names: Heerkens, J., Heerkens, Jasper, J. Heerkens, J. Herkens, J.L.T. Heerkens, JLT Heerkens, Jasper L. T. Heerkens, Jasper L.T. Heerkens
Observed institutions: Utrecht University, Ghent University, University of Bristol, Instituut voor Landbouw en Visserijonderzoek, Aeres University of Applied Sciences, Stichting Aeres Groep, Wageningen University & Research
ORCID: 0000-0002-8239-2444
Observed ORCID: 0000-0002-8239-2444
OpenAlex ID: A5017256001
Observer bias in animal behaviour research: can we believe what we score, if we score what we believe?
2014 · F.A.M. Tuyttens, S. de Graaf, et al. · Animal Behaviour · 293
Serotonergic Systems, Anxiety, and Affective Disorder: Focus on the Dorsomedial Part of the Dorsal Raphe Nucleus
2008 · Christopher A. Lowry, Matthew W. Hale, et al. · Annals of the New York Academy of Sciences · 275
Methods for assessment of keel bone damage in poultry
2015 · T. Casey-Trott, J.L.T. Heerkens, et al. · Poultry Science · 132
Prevalence and magnitude of helminth infections in organic laying hens (Gallus gallus domesticus) across Europe
2015 · Sundar Thapa, Lena K. Hinrichsen, et al. · Veterinary Parasitology · 110
Risk factors associated with keel bone and foot pad disorders in laying hens housed in aviary systems
2015 · J.L.T. Heerkens, E. Delezie, et al. · Poultry Science · 103
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Specific characteristics of the aviary housing system affect plumage condition, mortality and production in laying hens
2015 · Jasper L.T. Heerkens, Evelyne Delezie, et al. · Poultry Science · 91
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Ramps and hybrid effects on keel bone and foot pad disorders in modified aviaries for laying hens
2016 · J.L.T. Heerkens, E. Delezie, et al. · Poultry Science · 88
Laying hens selected for low mortality: Behaviour in tests of fearfulness, anxiety and cognition
2011 · Rebecca E. Nordquist, Jasper L.T. Heerkens, et al. · Applied Animal Behaviour Science · 65
Erythropoietin accelerates smooth muscle cell–rich vascular lesion formation in mice through endothelial cell activation involving enhanced PDGF-BB release
2009 · Maarten L. Janmaat, Jasper L. T. Heerkens, et al. · Blood · 57
Possible risk factors for keel bone damage in organic laying hens
2019 · L. Jung, K. Niebuhr, et al. · animal · 44
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Opinion of Belgian Egg Farmers on Hen Welfare and Its Relationship with Housing Type
2015 · Lisanne Stadig, Bart Ampe, et al. · Animals · 36
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Feather-pecking and injurious pecking in organic laying hens in 107 flocks from eight European countries
2017 · M Bestman, C Verwer, et al. · Animal Welfare · 32
Survey of egg farmers regarding the ban on conventional cages in the EU and their opinion of alternative layer housing systems in Flanders, Belgium
2015 · L.M. Stadig, B.A. Ampe, et al. · Poultry Science · 32
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Acoustic stimulation in vivo and corticotropin-releasing factor in vitro increase tryptophan hydroxylase activity in the rat caudal dorsal raphe nucleus
2009 · Andrew K. Evans, Jasper L.T. Heerkens, et al. · Neuroscience Letters · 27
Assessing keel bone damage in laying hens by palpation: effects of assessor experience on accuracy, inter-rater agreement and intra-rater consistency
2018 · S. Buijs, J.L.T. Heerkens, et al. · Poultry Science · 21
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Opinion of applied ethologists on expectation bias, blinding observers and other debiasing techniques
2016 · Frank A.M. Tuyttens, Lisanne Stadig, et al. · Applied Animal Behaviour Science · 19
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Nutritional interventions to support broiler chickens during Eimeria infection
2022 · R.R. Santos, F.C. Velkers, et al. · Poultry Science · 18
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Effect of dietary treatments on performance, oocysts shedding and lesion scores in broiler chickens experimentally challenged with Eimeria infection
2024 · R.R. Santos, L. Star, et al. · animal · 10
Effect of aviary housing characteristics on laying hen welfare and performance
2014 · Jasper L.T. Heerkens, Ine Kempen, et al. · Wageningen Academic Publishers eBooks · 3
Do ramps between perches reduce keel bone injuries and foot health problems in two laying hen hybrids in non-cage systems?
2015 · Jasper Heerkens, T.B. Rodenburg, et al. · Socio-Environmental Systems Modeling · 2
Ramps to facilitate access to different tiers in aviaries reduce keel bone and foot pad disorders in laying hens
2018 · Frank Tuyttens, Nikki Mackie, et al. · 1
Lifting laying hen welfare in aviaries to a higher level
2016 · Jasper Heerkens · Ghent University Academic Bibliography (Ghent University) · 1
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Are keel bone fractures in laying hens related to bone strength or to fearfulness?
2014 · T.Bas Rodenburg, Jasper L.T. Heerkens, et al. · Wageningen Academic Publishers eBooks · 1
Do keel bone deformations affect egg-production in end-of-lay laying hens housed in aviaries?
2013 · Jasper Heerkens, Evelyne Delezie, et al. · Socio-Environmental Systems Modeling · 1
Evaluation of different types of dietary interventions in a subclinical Eimeria challenge experiment with broiler chickens
2026 · R.R. Santos, F.C. Velkers, et al. · The Journal of Applied Poultry Research
Works count: 43
Citation count: 1,462
H-index: 17
I10-index: 18
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