  For two integers $n\geq 3$ and $2\leq p\leq n$, we denote $D(n,p)$ the
digraph obtained from a directed $n$-cycle by changing the orientations of
$p-1$ consecutive arcs. In this paper, we show that a family of $k$-regular
$(k\geq 3)$ bipartite tournament $BT_{4k}$ contains $D(4k,p)$ for all $2\leq
p\leq 4k$ unless $BT_{4k}$ is isomorphic to a digraph $D$ such that
$(1,2,3,...,4k,1)$ is a Hamilton cycle and $(4m+i-1,i)\in A(D)$ and
$(i,4m+i+1)\in A(D)$, where $1\leq m\leq k-1$.
