Radiative corrections toB(Z→bb¯)in the minimal supersymmetric standard model

We examine one-loop vertex corrections to the process $Z\to b\overline{b}$ in the minimal supersymmetric standard model. The amplitude for this process may be enhanced by large Yukawa couplings which arise in the case of a heavy top or a very large value of $tan\beta$. This leads to the possibility that supersymmetry might be observed indirectly by precision measurements of $B(Z\to b\overline{b})$.