Fig 4. Genetic trends for regression coefficients related to the slope of reaction norms for Selection Weight (SW), Scrotal Circumference (SC), and Days at First Calving (DFC) in three Nellore cattle lines (NeC, control; NeS, selection; and NeT, traditional).

NeC_M, males of the control line; NeC_F, females of the control line; NeS_M, males of the selection line; NeS_F, females of the selection line; NeT_M, males of the traditional line; NeT_F, females of the traditional line.