Author： Riva G. Pedretti E.F. Fabbri C.
Publisher： Academic Press
ISSN： 0021-8634
Source： Journal of Agricultural Engineering Research, Vol.77, Iss.4, 2000-12, pp. : 449-455
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Abstract
The performance of three heating systems was analysed in closed-cycle pig farm (farrowing and weaning section). Three adjoining rooms were heated using one of the following systems: a reversible air to air heat pump (HP) for both heating and cooling; a standard liquid petroleum gas (LPG) boiler for heating coupled with mechanical ventilation for summer cooling; and natural ventilation with emergency convective heating. Their energy consumption and influence on production parameters were compared.Fifteen groups of sow and their litters were housed in succession in each room from the end of pregnancy through weaning (5 cycles).Temperature and humidity and production parameters (
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