Converting Particles to Mesh???

When I convert a particle system to mesh and press f12 to render it doesn’t show the newly created mesh, what can I do to make the particle system that has been converted to mesh appear in render screen??? Thanks in advance!!!

well, you can model the object you want each particle to show as, and then in Visualization panel, Select Object, and then enter the name of the object in the OB: field. I did a neat flock of seagulls that way.