  Monte Carlo simulations of the short-time dynamic behavior are reported for
three-dimensional Heisenberg model with long-range correlated disorder at
criticality, in the case corresponding to linear defects. The static and
dynamic critical exponents are determined for systems starting from an ordered
initial state. The obtained values of the exponents are in a good agreement
with results of the field-theoretic description of the critical behavior of
this model in the two-loop approximation.
