  We discuss production of neutral $D$ mesons in proton-proton collisions at
the LHC (fixed target mode) in the framework of the BJM recombination model. We
present rapidity and transverse momentum distributions of $D$ mesons and
compare the recombination contribution to the dominant gluon-gluon fusion
mechanism. Both the direct production, as dictated by the matrix element, and
fragmentation of the associated $c$ or $\bar c$ are included. The latter
mechanism generates $D$ mesons with smaller rapidities than those produced
directly. We calculate the $D^0 + {\bar D^{0}}$ meson distributions relevant
for fixed target $p\!+\!\!^{4}\!H\!e$ collisions at $\sqrt{s}$ = 86.6 GeV as
well as for $p\!+\!\!^{20}\!N\!e$ collisions at $\sqrt{s}$ = 69 GeV. The
recombination component is consistent with the LHCb data and in addition
results in production asymmetry. The asymmetries in $D^{0}\!-\!\bar{D^{0}}$
production as a function of rapidity and transverse momentum are shown and the
cancellation of terms for direct production and associated $c/{\bar c}$
fragmentation is discussed.
