Abstract
Data presented gives detailed information on bone development and ossification grade of Wistar rat fetuses close to parturition (Gestation days 21-23). Focus lies on the representation of the ossification status of an individual and options to summarize the data without loss of information. Moreover the body weight development and food consumption data of the dams and non-pregnant females is included. For further interpretation please refer to the related article "The ossification status of Wistar rat fetuses at the end of gestation" (1).