Weiss, K.E.Jansen, B.C.2016-07-072016-07-07201619690330-2465http://hdl.handle.net/2263/54215The articles have been scanned in colour with a HP Scanjet 5590; 300dpi. Adobe Acrobat XI Pro was used to OCR the text and also for the merging and conversion to the final presentation PDF-format.en©1969 ARC - Onderstepoort and Faculty of Veterinary Science. University of Pretoria (original). © 2016 University of Pretoria. Dept. of Library Services (digital).Veterinary medicineVeterinary medicine -- South AfricaText