  We analyze the dynamics of a Bianchi I cosmology in the presence of a viscous
fluid, causally regularized according to the Lichnerowicz approach. We show how
the effect induced by shear viscosity is still able to produce a matter
creation phenomenon, meaning that also in the regularized theory we address,
the Universe is emerging from a singularity with a vanishing energy density
value. We discuss the structure of the singularity in the isotropic limit, when
bulk viscosity is the only retained contribution. We see that, as far as
viscosity is not a dominant effect, the dynamics of the isotropic Universe
possesses the usual inviscid power-law behavior but in correspondence of
aneffective equation of state, depending on the bulk viscosity coefficient.
Finally, we show that, in the limit of a strong non-thermodynamical equilibrium
of the Universe mimicked by a dominant contribution of the effective viscous
pressure, a power-law inflation behavior of the Universe appears, the
cosmological horizons are removed and a significant amount of entropy is
produced.
