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Establishing Trailer Ventilation (Boarding) Requirements for Finishing Pigs during Transport
  • John J. McGlone, Texas Tech University
  • Avi Sapkota, Texas Tech University
  • Anna K. Johnson, Iowa State University
  • Rebecca K. Kephart, Iowa State University
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Specifically, this study aimed to establish the effects on mortality and morbidity of boarding levels (amount of side-wall trailer ventilation) for finishing pigs in mild weather (8.80 ± 0.30 °C, 71.70% ± 1.12% humidity). Pigs from commercial finishing sites were transported in 302 pot-bellied trailers to commercial processing plants. Measures collected at the processing plant were rates of dead on arrival (DOA), non-ambulatory, non-injured (NANI), non-ambulatory, injured (NAI), and total dead and down (D&D). Boarding levels (% that side walls were closed off with inserted boards) were divided into 3 bins: low, medium, and high, and outside temperature was divided into 4 bins <5 °C, 5.10–10 °C, and 10.10–15 °C and >15 °C. Average rates of DOA, NANI, NAI, and D&D were approximately 0.30%, 0.12%, 0.04%, and 0.46%, respectively. The D&D was highest when boarding level was low with temperatures <5 °C (p < 0.05). However, variations in boarding level (medium and high boarding) in the temperature range of 5.10 °C to 23.30 °C did not affect pig losses.

This article is from Animals 4 (2014): 515, doi:10.3390/ani4030515. Posted with permission.

This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
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John McGlone, et al
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John J. McGlone, Avi Sapkota, Anna K. Johnson and Rebecca K. Kephart. "Establishing Trailer Ventilation (Boarding) Requirements for Finishing Pigs during Transport" Animals Vol. 4 Iss. 3 (2014) p. 515 - 523
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