%0 Journal Article %K biological validation %K enzyme immunoassay %K faecal analysis %K glucocorticoid metabolites %K stress %B Berliner und Münchener Tierärztliche Wochenschrift %C Hannover %D 2020 %G Englisch %I Schlütersche Verlagsgesellschaft mbH & Co. KG %R 10.2376/0005-9366-18078 %T Non-invasive assessment of adrenocortical activity as a measure of stress in ring-tailed lemurs (Lemur catta) %V 133 %8 01/2020