Sex-specific effects of dietary fatty acids on saliva cortisol and social behavior in guinea pigs under different social environmental conditions.

Social confrontations had a significant impact on saliva cortisol levels in relation to the dietary treatments and an almost significant impact in relation to the sexes (diet: F 2,53 = 8.514, p < 0.001; sex: F 1,53 < 0.001; p = 0.982; time: F 1,55 = 23.437, p < 0.001; diet:sex: F 2,53 = 1.980, p = 0.148; diet:time: F 2,55 = 5.106, p = 0.009; sex:time: F 1,55 = 3.984, p = 0.051) (Fig. 3 ).

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