The effects of cross fostering on systolic blood pressure (SBP). Three-way ANOVA revealed significant differences for offspring strain (P < .001), strain of fostering dam (P < .001), age (P = .033), and a significant interaction between offspring strain and strain of foster dam (P = .021) (N = 6/group). Holm-Sidak post hoc Analysis showed a significant difference between WKYonWKY and WKYonSHRSP (bracket “b,” P = .014), SHRSPonWKY and SHRSPonSHRSP (bracket “a,” P < .001), and individual point differences between SHRSPonSHRSP and SHRSPonWKY (**P = .001 and *P < .05)