  We present predictions for the inclusive productions of the D meson
originating from bottom hadrons at the CERN LHC in the general-mass
variable-flavour-number scheme at next-to-leading order. We present results
using two methods to describe the transition for $b\rightarrow D$: a two-step
transition $b\rightarrow B \rightarrow D$, based on the $b\rightarrow B$
fragmentation functions and the spectra for $B\rightarrow D$ as measured by
CLEO and a one-step transition based on the fragmentation functions for
$b\rightarrow D$. The results of both approaches are compared.

High Energy Physics - Phenomenology