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An evaluation of the effect of operant feeders on welfare of hens maintained on litter

✍ Scribed by A.C. Lindberg; C.J. Nicol


Book ID
113273591
Publisher
Elsevier Science
Year
1994
Tongue
English
Weight
905 KB
Volume
41
Category
Article
ISSN
0168-1591

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Dose-response curves were obtained for the effects of d-amphetamine sulphate (0.1-3.2 mg/kg) on the operant performance of rats in variable-interval 4-min and variableinterval 20-rain schedules of reinforcement. Response rates maintained under variable-interval 4-rain were suppressed in a dose-depen