Feasibility and validity of the Animal Welfare Assessment Grid to monitor the welfare of zoo-housed gorillas Gorilla gorilla gorilla

Zoos need to monitor their animals in order to evaluate to what extent animal welfare policies result in adequate welfare. Since it is usually not feasible for zoos to structurally measure corticosteroid concentrations or conduct extensive behavioural observations, zoos often rely on their caretakers to assess animal welfare using surveys. The Animal Welfare Assessment Grid […]