Reinach, NormanLouw, J.G.Alexander, R.A.Clark, R.Louw, J.G.De Kock, V.E.2017-02-062017-02-0620171952Reinach, N & Louw, JG 1952, 'The utilization of phosphorus from different sources by the rat’, Onderstepoort Journal of Veterinary Research, vol. 25, no. 4, pp. 99-104.0330-2465http://hdl.handle.net/2263/58867The 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.An experiment has been carried out in which the relative availability to young rats of the phosphorus in bone meal, bone ash, dicalcium phosphate and tricalcium phosphate has been ascertained. Live weight gains, the ash content of the femurs, and the total retention of phosphorus have been used as criteria in evaluating the supplements. Dicalcium phosphate was found superior to the other three supplements. Bone ash proved to be on a par with, if not better than bone meal. Tricalcium phosphate was least efficient as a source of phosphorus for bone formation. The practical significance of the observed differences in availability is briefly discussed.en© 1952 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