The Collaborative International Dictionary of English v.0.48:

Piggery \Pig"ger*y\, n.; pl. Piggeries.
   A place where swine are kept.
   [1913 Webster]

WordNet (r) 3.0 (2006):

piggery
    n 1: a farm where pigs are raised or kept [syn: piggery, pig
         farm]