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CHARACTERISATION OF PIG PRODUCTION IN PORTUGAL - ALTERNATIVE OUTDOOR HOUSING SYSTEMS
Published by the American Society of Agricultural and Biological Engineers, St. Joseph, Michigan www.asabe.orgCitation: No Citation available.
Authors: Cruz, Vasco F.; Lucas, Eduardo M. and Baptista, Fátima J.
Keywords: pig production, housing, outdoor systems, reproduction cycle
In Portugal animal production represents more than half of the total agricultural production. Pig production, which represents 41% of animal production, is located near the large population centres. That contribute to the transfer to Alentejo rural region in South of Portugal, of this production. Alentejo has problems concerning to the climate conditions for pig production and soil quality so the outdoor housing system seems to be a good solution to solve that problems .
The outdoor system, which is described in this paper, is based on multiple zones adapted to the reproduction cycle, i.e., open groups pens for culled sows, dry sows and boars, open individually or group pens for pregnant sows, closed individually farrowing pens spread in a large open zone. Recent developments indicate that this system permits obtaining good reproductive performances when compared with intensive production systems characterised by complex environmental control systems, with the advantage of reducing the production costs.
Concerning the rearing and fattening houses it is possible to use semi-open and open systems without seriously affecting growth performances when compared with close environmental control systems, providing a more “ natural ” pork meat.
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