Jansen, B.C.Knoetze, P.C.Bigalke, R.D.Morren, A.J.Verster, Anna J.M.Verwoerd, Daniel WynandWalker, Jane B.Cameron, Colin McKenzieGilchrist, Frances M.C.Steyn, P.J.J.2016-07-062016-07-0620161979Jansen, BC, & Knoetze, PC 1979, 'The immune response of horses to tetanus toxoid’, Onderstepoort Journal of Veterinary Research, vol. 46, no. 4, pp. 211-216.0330-2465http://hdl.handle.net/2263/53901This article has 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 intramuscular injection of 8-16 Lf tetanus toxoid in water-in-oil emulsion protected adult horses against tetanus for at least 128 weeks. A booster dose of 8 Lf toxoid in aqueous solution protected them for a further period of at least 3 years. Colostral immunity protected foals for at least 10 weeks. An intramuscular injection of 8 Lf toxoid in water-in-oil emulsion given to foals from immune dams when they were 10-18 weeks old did not elicit any antibody response. They did respond, however, to a booster injection of 8 Lf toxoid in aqueous solution given 12 weeks after the first dose. New-born foals were shown to be inherently unable to respond to an injection of tetanus toxoid.en©1979 ARC- Onderstepoort and Faculty of Veterinary Science, University of Pretoria (original) ©2016 University of Pretoria Department of Library Services(digital)Veterinary medicineVeterinary medicine -- South AfricaArticle