Cholinergic blockade and tonic immobility in chickens
نویسنده
چکیده
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 reduces the duration of TI and suggested some interference with the process of habituation, although the evidence for the latter was not conclusive.
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