vampire -blood bank "farm" type movie; ?1980s help.

[shadowcat5]

trying to remember a vamp film I couldn't find thru google /IMDb.  was on tv (michigan), think it was 1980s, or very early 1990s (low budget).  men/women/teens kept on secluded "farm" while vampires ruled them.  Vamps liked having meals close by.  victims low in blood walked around their "exercise yard" in the daytime, like sleepwalkers.  victims hooked up to I.V.'s on regular rotating basis.  One person tried to escape over brick wall, got caught, brought back.  Pretty sure non-vamp sympathizers were human /working in daytime.  Was made in color.  Thanks for your help. --Shannon

[retrorussell]

Maybe RETURN TO SALEM'S LOT.

[Rayo Casablanca]

There's also a "blood farm" with victims slowly drained in THIRST http://www.imdb.com/title/tt0080016/?ref_=fn_al_tt_3