Polson, A.Alexander, R.A.Clark, R.Louw, J.G.De Kock, V.E.2017-02-032017-02-0320171952Polson, A 1952, 'Comparative electrophoretic studies of bovine and human colostrum in relation to neo-natal immunity’, Onderstepoort Journal of Veterinary Research, vol. 25, no. 4, pp. 7-12.0330-2465http://hdl.handle.net/2263/58854The 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.Since there is no reason to doubt the generally accepted conception that the concentration of ƴ globulins is an accurate index of humoral immunity, it may be concluded that in bovines there is no transplacental transmission of specific immunity and that the acquired passive immunity of the calf results from the ingestion and absorption of the globulins present in high concentration in the colostrum. The human acquires its transmitted passive immunity exclusively in utero to a degree correlated with the immunity of its mother. This immunity is not influenced by the ingestion of colostrum from which the ƴ globulin component is absent.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