High-resolution electrical-resistivity data have been obtained for the cobalt-rich amorphous ferromagnets Fe 5 Co 50 Ni 17− x Cr x B 16 Si 12 (x= 0, 5, 10, and 15) and Fe 5 Co 50 Mn 17 B 16 Si 12 between 8 and 300 K. The resistance minimum, which is≃ 15 K for x= 0, shifts to temperatures≃ 200 K and above on substitution by Cr or Mn. In a sample with x= 0, in the region above T min, there is clear evidence of a magnetic term∝ T 2 in addition to the structural term. A quantitative analysis, based on electron-electron interaction and localization effects, is reported here for ferromagnetic systems exhibiting resistance minima at high temperatures. We find for T< T min (x> 0), three distinct regions where the conductivity varies as√ T, T, and√ T at low, intermediate, and high temperatures, respectively, in agreement with the predictions of existing theories. The magnetic scattering seems to contribute very little below T min.