Application of open field, tonic immobility, and attention bias tests to hens with different ranging patterns
نویسندگان
چکیده
منابع مشابه
Evaluation of tonic immobility in common pheasant hens kept in different housing systems during laying period
Common pheasant (Phasianus colchicus) hens kept in different housing systems during laying period were exposed to a tonic immobility test. At the end of the laying period, the shortest duration of the tonic immobility, and thus the lowest fear level, was found in birds kept in enriched cages, i.e. cages equipped with 2 perches and a hiding place. The duration of the tonic immobility in hens kep...
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Cholinergic blockade and tonic immobility in chickens
To investigate the effects of cholinergic blockade on duration of tonic immobility (TI) and habituation to handling and the TI testing procedure, two groups of cockerel chicks were tested following injection with scopolamine or saline. One week later half of each group was given a second test for TI following injection with saline or scopolamine. Results indicated that scopolamine significantly...
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ژورنال
عنوان ژورنال: PeerJ
سال: 2019
ISSN: 2167-8359
DOI: 10.7717/peerj.8122