Roets, G.C.S.Du Toit, P.J.2017-03-102017-03-1020171943Roets, GCS 1943, 'Pigment metabolism. II. Determinations of bilirubin and carotinoids in the plasma and of coproporphyrin in the urine and faeces of cattle experimentally infected with Theileria parva’, Onderstepoort Journal of Veterinary Science and Animal Industry, vol. 18, nos. 1 & 2, pp. 297-303.0330-2465http://hdl.handle.net/2263/59383The 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.The investigations on Theileria parva infection of cattle revealed : (1) That bilirubinaemia did occur, the highest figure for plasma bilirubin being 12 v. d. Bergh units. (2) That the yellow staining of the fat is due to the combined effect of carotinoids and bilirubin. (3) That the intensity of the yellow colour of the plasma is in part due to carotinoids, a normal constituent of the blood of cattle, especially if they be fed on food containing carotinoids. (4) That there is a definite rise in the concentration of coproporphyrin in the faeces and urine. Such a rise, however, does not necessarily mean that there is an increase in the total amount excreted as the rise may be due to the decrease in the amount of faeces passed as a result of the disease.en© 1943 ARC - Onderstepoort and Faculty of Veterinary Science, University of Pretoria (original). © 2017 University of Pretoria. Dept. of Library Services (digital).Veterinary medicineVeterinary medicine -- South AfricaArticle