1 Dfl = $0.7177 CAN (01/17/98)
For the sows, the extra annual costs for such a cooling system would be per place equal to $85.40 CAN; for growing-finishing: $16.50 CAN/ place; for weaned piglets: $6.96 CAN/place and, for dry sows: $32.30 CAN/place. The investment costs for a cooling slurry system would vary depending on the farm size and the availability of the water and the local regulation on ground water use. Lowering the temperature in the superior layers of the stored manure results in lower ammonia emissions. The reduction obtained brings the ammonia emissions under the Dutch Green Label Standard. Because of the important cost of such a system, the use of it has promises only where incentive and regulation are enforced.