We reexamine a succesful fermion mass Ansatz proposed by Giudice for a wide range of the ratio $tan\beta =\frac { <\bar h>}{ <h>}$ (where ${ \bar h},h$ are the two standard higgs fields), in the context of supersymmetric grand unified theories. We find that the 7 predictions of the ansatz, $V_{ us}, V_{ cb}, V_{ ub}, m_u, m_d, m_s$ and $m_b$ are in good agreement with the experiment when either { \it i) } $tan\beta \simeq 1$ or { \it ii)} $tan\beta \geq 30$. A correct prediction for the bottom mass gives a lower limit on $m_t\geq 125$ for case { \it (i)}, in agreement with the previous analysis, while in case { \it (ii)} $m_t\geq 145$.
Categories: hep-ph