  Available Skyrme parametrizations with hyperons are examined from the point
of view of their suitability for applications to neutron stars. It is shown
that the hyperons can attenuate or even remove the problem of ferromagnetic
instability common to (nearly) all Skyrme parametrizations of the
nucleon-nucleon interaction. At high density the results are very sensitive to
the choice of the Lambda-Lambda interaction. The selected parameter sets are
then used to obtain the resulting properties of both cold neutron stars and hot
protoneutron stars. The general features known from other models are recovered.
