Significant GO terms returned by GOseq analysis of genes differentially expressed in response to weaning stress. A large number of GO terms were identified in response to weaning, predominantly involved in the extracellular region and plasma membrane. This indicates that a large number of genes were involved in cell signalling and includes a number of cytokines. The presence of the "extracellular region", "extracellular space", "extracellular matrix" and "proteinaceous extracellular matrix" on day 7 is similar to day 2 but suggests that the magnitude of the day 2 response had reduced. *0.2 < FDR > 0.1.