نتایج جستجو برای: pecking
تعداد نتایج: 890 فیلتر نتایج به سال:
Intensive husbandry of ducks is currently creating problems with regard to the welfare of these birds. The improvement of hygiene conditions and rationalisation of husbandry have created a poor and restrictive environment, leading to the appearance of abnormal behaviour patterns, such as certain types of pecking. Solutions are proposed. Many factors are involved and vast fields remain open for ...
Animals, including Humans, are prone to develop persistent maladaptive and suboptimal behaviours. Some of these behaviours have been suggested to arise from interactions between brain systems of Pavlovian conditioning, the acquisition of responses to initially neutral stimuli previously paired with rewards, and instrumental conditioning, the acquisition of active behaviours leading to rewards. ...
Several dietary alternatives to feed withdrawal have been proposed to induce a molt in laying hens. This study compared the behavior of laying hens on an alfalfa crumble diet (ALC) to hens that were either on a conventional layer diet (FF) or hens that had feed withdrawn (FW) during a 9-d trial. Each treatment consisted of 24 hens (3 hens per battery cage), and treatment began after a 2-week ac...
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