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Threshold of defensive responses (ms) defined as the shortest stimulus necessary to evoke at least one defensive response in the group of suckling (<21 days old), weanling (21–40 days old) and weaning (>40 days old) rabbits. Pairwise comparisons between groups were provided by the non-parametric Kruskal-Wallis test using Conover-Inman post-hoc analysis. The filled circles are individual threshold values and full line indicates median values for each group. *p = 0.003; #p = 0.008.
