  We consider magnetic Weyl semimetals. First of all we review relation of
intrinsic anomalous Hall conductivity, band contribution to intrinsic magnetic
moment, and the conductivity of chiral separation effect (CSE) to the
topological invariants written in terms of the Wigner transformed Green
functions (with effects of interaction and disorder taken into account). Next,
we concentrate on the CSE. The corresponding bulk axial current is accompanied
by the flow of the states in momentum space along the Fermi arcs. Together with
the bulk CSE current this flow forms closed Weyl orbits. Their detection can be
considered as experimental discovery of chiral separation effect. Previously it
was proposed to detect Weyl orbits through the observation of quantum
oscillations \cite{Potter_2014} . We propose the alternative way to detect
existence of Weyl orbits through the observation of their contributions to Hall
conductance.
