Which of the following is TRUE regarding the Animal Welfare Regulations and duplication of experiments?

The statement about unnecessary duplication of animal experiments not being allowed is true as it aligns with the principles set forth by the Animal Welfare Regulations. These regulations emphasize the ethical treatment of animals used in research and aim to minimize unnecessary suffering and the use of animals. Redundant experiments can waste animal lives and resources, thus creating a need for stringent oversight.

The aim is to utilize the 3Rs framework—Replacement, Reduction, and Refinement—in animal research. This approach encourages researchers to seek alternatives to animal use when possible, reduce the number of animals used in experiments, and refine procedures to minimize harm and distress. Therefore, any duplication that does not serve a valid scientific purpose or is deemed unnecessary is explicitly discouraged under these regulations to enhance the welfare of the animals involved.

In contrast, the other options suggest scenarios that are not aligned with these principles. While replication may be a valid scientific practice to confirm findings, it should not occur without justification, which the regulations actively promote.