IAT Congress 2025 -- Positive reinforcement training (PRT) is increasingly used to refine scientific and husbandry procedures involving Old-World nonhuman primates (NHPs) around the globe. PRT provides mental stimulation as well as reduces stress for NHPs, which leads to better overall wellbeing and more accurate science. The understanding of behaviour as an indicator of welfare has gained enormous support in the past 20 years and our awareness to this allows us to continue improving our standards and processes.

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