While natural ventilation and negative pressure mechanical ventilation are widely used for calf barns, both have problems that can be minimized with supplemental positive
pressure tube systems. Dr. Ken Nordlund will present on the deficits of common ventilation systems in calf barns, management of air quality and cold stress to minimize respiratory disease in calves, and teach basic principles of positive pressure tube systems, including static pressure, uniform discharge along length of tube, and estimating throw distance of air from the tube to deliver appropriate volumes of fresh air to calves without creating drafts. Participants will receive and learn to use the Dairyland Initiative's Positive Pressure Ventilation Tube Calculator to create specifications for example barns. Dairyland Initiative staff will be on-hand for plenty of one-on-one interaction. Following the workshop, participants will be listed on The Dairyland Initiative website as trained consultants in positive pressure tube design for calf barns.
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