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  • Title: [Interstrain differences in social and time patterns of agonistic behavior in male laboratory mice].
    Author: Osadchuk LV, Bragin AV, Osadchuk AV.
    Journal: Zh Vyssh Nerv Deiat Im I P Pavlova; 2009; 59(4):473-81. PubMed ID: 19795810.
    Abstract:
    The aim of present study was to reveal the genetic effects on social dominance and patterns of agonistic behaviors in social partners. The study was carried out in adult male mice of three inbred strains BALB/cLac, CBA/Lac and PT using an ethological model of social hierarchy, which is characterised by the minimal size and genetic heterogeneity (two males of different genotypes). We used a neutral territory as the experimental territorial condition for the establishment of social hierarchy. Rank asymmetry in aggressive and defensive behaviors was quickly formed during the first day after the production of the social. Significant interstrain differences in time patterns ofagonistic behavior in dominants and subordinates as well as in the level of social dominance determined as a proportion of dominant animals in the strain were observed. In was shown that, in laboratory mice, the genotype could markedly influence social dominance and the patterns of agonistic behavior in social partners.
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