The objective of this research was to establish a first estimate of the space requirements of weaned pigs during
transport in summer based on measures of animal well-being. The frequencies of standing, lying, sitting, standing/rearing on another pig, and lying/huddling on top of another pig were recorded using 1-min scan samples
during the entire duration of transport. Blood samples were collected and BW and lesion scores recorded from 32 pigs per space allowance for physiological and immune measures before and after transport. It was concluded that greater neutrophil to lymphocyte ratio and less lying behavior performed by pigs transported at 0.05 m2/pig suggest that a minimum space allowance of 0.06 m2/pig was preferable when transporting weaned pigs for 60 min during summer in this study.