Rectal temperature and blood parameters were analysed separately for periods
P1 and P2. Within P1, data were analysed using a general linear model (GLM procedure of SAS) that included the fixed effects of Ta and replicate. Within P2, data
were analysed using the linear mixed model and included the fixed effects of Ta, LPS
administration (LPS1, LPS3 or LPS5), replicate and their interactions, and LPS administration was specified as a repeated effect. In a second approach, daily means
measured during P2 were compared to baseline values, measured during P1, using
the contrast statement of the MIXED procedure.