| 摘要 |
A piggery comprises a thermally insulated building structure having a concrete floor (21) divided into a plurality of housing zones (2, 3, 4, 5), each zone including pens for housing groups of pigs. A farrowing zone (3) has regions of floor (44) heated to a predetermined temperature and regions (45) which are unheated. Other zones (4, 5) are heated in their entirety and regions thereof are controlled at different temperature. An elevated air duct (26) provides temperature controlled air which flows downwardly over the housing zones (1, 2, 3, 4, 5) and exits the building via waste channels (11) communicating with a waste duct (24). The piggery system optimizes breeding and growing conditions to provide reduced mortality rates, improved feed conversion rates, better quality meat and reduced operating costs. |
