Table 1 Social interactions test (SIT). Results of the non-parametric analyses (Kruskal-Wallis ANOVA) on duration (s) of non-social and social behaviors observed in the four experimental groups during SIT

 Exploration

H = 4.70, p = 0.19

 Rearing and wall-rearing

H = 7.16, p = 0.07

 Sniffing

H = 1.48, p = 0.69

 Digging

H = 2.30, p = 0.51

 Self-grooming

H = 5.21, p = 0.16

 Sum of non-social behaviors

H = 1.36, p = 0.71

 Following

H = 1.15, p = 0.76

 Head sniffing

H = 0.79, p = 0.85

 Body sniffing

H = 4.45, p = 0.22

 Ano-genital sniffing

H = 1.16, p = 0.76

 Sum of social behaviors

H = 2.38, p = 0.50