@article{7639858353964d61be3bac189d8ebc07,
title = "The vocal expression of feeding motivation and frustration in the domestic laying hen, Gallus gallus domesticus",
keywords = "Chicken welfare, Feeding, Frustration, Motivation, Vocalisation",
author = "P.H. Zimmerman and P. Koene and {van Hooff}, J.A.R.A.M.",
year = "2000",
doi = "10.1016/S0168-1591(00)00136-2",
language = "English",
volume = "69",
pages = "265--273",
journal = "Applied Animal Behaviour Science",
issn = "0168-1591",
publisher = "Elsevier",
}