Summary and Implications
The objective of this study was to identify weather and transportation factors that increased the incidence of fatigued, injured, and deceased pigs per trailer load. A total of 14 variables including temperature-humidity index, density of trailer, and week of transport accounted for variation in percentage of defects per trailer.
Iowa State University
Fitzgerald, Robert; Stalder, Kenneth J.; Matthews, Neal; Schultz-Kaster, Collette; and Johnson, Anna K.
"Effect of Environmental Factors on the Frequency of Fatigued
Pigs and Mortality Rates at a Commercial Abattoir,"
Animal Industry Report:
AS 654, ASL R2346.
Available at: http://lib.dr.iastate.edu/ans_air/vol654/iss1/95