Environmental enrichment is a critical component of Refinement, one of the 3Rs underlying humane experimentation on animals.In martin 00042 for sale this paper I discuss why primates housed in laboratories, which often have constraints of space and study protocols, are a special case for enrichment.I outline a framework for categorising the different types of enrichment, using the marmoset as a case study, and summarise the methods used to determine what animals want/prefer.I briefly review the arguments that enrichment does not negatively affect experimental outcomes.
Finally I focus on complexity and novelty, choice and control, the underlying features of enrichment that makes it successful, and how combined with a thorough understanding of natural history we can put effective enrichment animed aniflex complete into practice in laboratories.Throughout the paper I emphasise the need to evaluate enrichment to ensure it is having the desired effect.