Roets, G.C.S.Du Toit, P.J.2017-03-272017-03-2720171941Roets, GCS 1941, 'A note on the influence of a bloodmeal ration on porphyrin excretion in normal bovines’, Onderstepoort Journal of Veterinary Science and Animal Industry, vol. 16, nos. 1 & 2, pp. 315-328.0330-2465http://hdl.handle.net/2263/59526The 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.Results are presented showing the effect of dietary bloodmeal on the porphyrin excretion of four mature normal steers. Bloodmeal causes a higher excretion in the faeces of copro- and chloroform soluble porphyrins. The coproporphyrin excretion of the urine is increased but no chloroform soluble porphyrins could, however, be detected in animals fed on bloodmeal.en© 1941 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