*5.7. Retrieval Test*

The same animals used in previous experiment were submitted to the retrieval test as described by [49]. Immediately after the maternal behavior observation session, the pups were removed from their mothers for 5 min. After this period, the whole litter was placed back in the housing cage in a dispersed manner. The mother was then observed for 10 min and the latency to pick up the first pup, the latency to pick up all the pups, and the number of pups picked up, were observed.

Statistical analyses were performed by two-way ANOVA, and the level of significance was set at *p* < 0.001.
