Effect of novelty and restraint on catecholamines in plasma of laying hens.
1. The present study describes the effects of novelty (experiment 1) and restraint (experiment 2) on the catecholamine responses in laying hens. 2. Manual restraint caused a higher catecholamine response than mere visual exposure to a human being wearing yellow gloves and swinging his hand in the bird's home cage. 3. A relationship could be shown between adrenaline concentrations in plasma after a novel stimulus and the duration of tonic immobility.
Beuving
G
G
Institute for Animal Science and Health, Lelystad, The Netherlands.
Blokhuis
H J
HJ
D000818:Animals; D002645:Chickens; D004837:Epinephrine / Q000097:blood* / Q000378:metabolism; D005260:Female; D006801:Humans; D009638:Norepinephrine / Q000097:blood* / Q000378:metabolism; D010058:Oviposition; D012149:Restraint, Physical; D013315:Stress, Psychological
D009638:Norepinephrine; D004837:Epinephrine