The ornamental design for flume platform for animal confinement pens, as shown and described.
FIG. 1 is a fragmentary perspective view taken from the top, one side and
one end of a flume platform for animal confinement pens showing my new
design;
FIG. 2 is a fragmentary perspective view taken from the bottom, side and
end opposite that shown in FIG. 1;
FIG. 3 is an elevational view taken from the side shown in FIG. 1; and
FIG. 4 is an elevational view taken from the side shown in FIG. 2.
The center of the platform is broken away in FIGS. 3 and 4 to indicate
indeterminate length.