Environmental enrichment consists in techniques that modify the captive environment, in order to make it more dynamic. The adoption of the method, often, results in the reduction of abnormal behavior (stereotypies) and expression of a more typical behavioral repertoire. Believing in the effectiveness of environmental enrichment techniques and that it is possible to improve the condition of captives individuals, this work was proposed. There were applied techniques of Physical and Feed enrichment to groups and solitary individuals captives of Leontopithecus chrysomelas (Kuhl, 1820) kept in Tropical Laboratory of Primatology (TLP), of the Universidade Federal da Paraíba (UFPB). The observations were made in three phases: Control; Enrichment of the Physical; and Nutritional. Individuals presented frequent abnormal behaviors during Control phase, such as pacing and excessive watching, especially the lonely individuals. During the experimental phase, only the act to guard presented significant difference for the family groups (Fr2 = 7.58; gl = 2; p = 0.023). The results show that L. chrysomelas of the TLP seem to be more resistant to change, possibly due to the long period of exposition of these to a conditioned environment to a routine and without stimuli. Aimed to modify this scenario, it is suggested to adopt methods of “routine break” concomitant to the techniques of environmental enrichment.
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