Final answer:
The USDA report challenges the claim that animals used in research are treated humanely, as it states that a significant number of animals suffered pain without anesthesia during experiments. To support the claim, it is essential for research facilities to strictly adhere to regulations and guidelines to minimize animal suffering.
Step-by-step explanation:
The information that the USDA reported in 2016, stating that 71,370 animals suffered pain during experiments without anesthesia, challenges the claim that animals used in research are always treated humanely. This data shows that there are instances where animals are subjected to pain and distress during experiments.
Animal research is held to a high ethical standard, and researchers are required to design their experiments in a way that minimizes pain and distress for the animals. However, the reported number of animals suffering without anesthesia suggests that there may be lapses in adhering to these ethical standards.
In order to support the claim that animals used in research are treated humanely, it is important to ensure that all research facilities strictly follow the regulations and guidelines set by organizations such as the USDA and the IACUC, and take measures to minimize the suffering of animals used in experiments.