Odors are so minimal at a northern Iowa wean-to-finish barn that neighbors a half-mile away didn't even realize pigs were in the building for six months. Father and son producers Don and Bert Huftalin built the 3,600-head facility three years ago witha mindset that considered return on investment rather than up-front costs One place they didn't skimp was ventilation. Their system, designed by the Danish company SKOV, was quite unlike any in the U.S. Totally mechanical, the system features computerized climate control through forced ventilation and high-pressure cooling that limits temperature fluctuations to a minimum, 24/7.
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