  We present the exact solution of the (0+1)-dimensional Boltzmann equation for
massive Bose-Einstein and Fermi-Dirac gases. For the initial conditions used
typically in ultra-relativistic heavy-ion collisions, we find that the effects
of quantum statistics are very small for thermodynamics-like functions such as
the effective temperature, energy density or transverse and longitudinal
pressures. Similarly, the inclusion of quantum statistics affects very little
the shear viscosity. On the other hand, the quantum statistics becomes
important for description of the phenomena connected with the bulk viscosity.
