  The minimal metagravity theory, explicitly violating the general covariance
but preserving the unimodular one, is applied to study the evolution of the
isotropic homogeneous Universe. The massive scalar graviton, contained in the
theory in addition to the massless tensor one, is treated as a source of the
dark matter and/or dark energy. The modified Friedmann equation for the scale
factor of the Universe is derived. The question wether the minimal metagravity
can emulate the LCDM concordance model, valid in General Relativity, is
discussed.
