The economics of investing in a misting-cooling system for growing-finishing swine [20-107 kg, (44-236 lb)]were evaluated for central Kentucky summer environments using the NC-204 swine growth model (Bridges et al.,1992a,b; Usry et al., 1992). The economic returns to misting were compared for different weather years (1995 and 1983)and two initial starting dates of 15 June and 5 July. The results of the simulation model found that for all instances the useof a misting-cooling system reduced the time of growth to market and produced a pig with less backfat. Depending on thepotential for evaporative cooling in the weather year and the starting date in the facility, the economic returns for themisting-cooling system varied from $0.49 per pig in 1995 to $3.40 per pig in 1983.
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Bridges et al. (1998) studied this question.
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