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动物的重新使用可以减少科研中动物的使用量 (符合减少的要求 ) ,但使每一只动物所受的痛苦增大了 (违背了优化的要求 )。从动物福利的观点来看 ,如果在准备工作过程中 (例如 :预备性手术、生理反应特性的研究、为承担某项任务而进行的培训 )使动物承受很大的痛苦 ,这就与重新使用的好处有些矛盾了。动物的重新使用可以延长生存时间 ,但使它们的福利受到严重侵害。有些法律对重复实验性使用动物进行了严格的限制 ,但最近才对重复使用下了适当的定义。在管理的水平上来讲 ,必须认真考虑研究人员是否有延长动物使用的权利以及是否同意科研人员之间进行动物的交换使用。除希望在科研中减少动物的使用量以外 ,动物重新使用的合理性主要取决于动物的预期寿命以及经济价值。另外 ,动物饲养人员与管理机构应该考虑如何在实验后能够使动物继续生存下来 ,这比人道地处死它们更为可取。
The re-use of animals can reduce the amount of animals used in research (meeting reduced requirements), but increase the suffering of each animal (contrary to optimization requirements). From the point of view of animal welfare, if the animals suffer a great deal during the preparatory work (for example, preparatory surgery, research on the physiological response characteristics and training for undertaking a task), this is associated with re-use The benefits of some contradictory. The re-use of animals can prolong survival but severely infringe their welfare. Some laws place strict limits on the use of animals for repeated experiments, but only recently have there been a proper definition of reuse. At the managerial level, careful consideration must be given to whether researchers have the right to extend the use of animals and whether they agree to the exchange of animals between researchers. In addition to the desire to reduce the use of animals in research, the rationale for re-use of animals depends primarily on the life expectancy and economic value of the animals. In addition, animal husbandry and regulatory agencies should consider how to keep animals alive after the experiment, which is more desirable than killing them humanely.