Jasper Heerkens

Observer bias in animal behaviour research: can we believe what we score, if we score what we believe?

Frank Tuyttens, Sophie de Graaf, Jasper Heerkens et al. · Animal Behaviour · 2014 · 258 citations

Animal Behaviour, Behavioral Sciences, Behavioral Decision Making +7

Prevalence and magnitude of helminth infections in organic laying hens (Gallus gallus domesticus) across Europe

Sundar Thapa, Lena Karina Hinrichsen, Christine Brenninkmeyer et al. · Veterinary Parasitology · 2015 · 103 citations · Full text

Helminth Infections, Helminthology, Poultry Disease +9

Risk factors associated with keel bone and foot pad disorders in laying hens housed in aviary systems

Jasper Heerkens, Evelyne Delezie, T.B. Rodenburg et al. · Poultry Science · 2015 · 90 citations · Full text

Ramps and hybrid effects on keel bone and foot pad disorders in modified aviaries for laying hens

Jasper Heerkens, Evelyne Delezie, Bart Ampe et al. · Poultry Science · 2016 · 77 citations · Full text

Specific characteristics of the aviary housing system affect plumage condition, mortality and production in laying hens

Jasper Heerkens, Evelyne Delezie, Ine Kempen et al. · Poultry Science · 2015 · 75 citations · Full text