Jansen, B.C.South Africa. Dept. of Agricultural Technical ServicesDe Lange, M.Reinecke, R.K.Walker, Jane B.De Kock, V.E.Howell, P.G.2015-11-302015-11-3020151971Jansen, BC 1971, 'The quantitative determination of the toxic factors produced by Clostridium botulinum (Van Ermengem, 1896) types C and D’, Onderstepoort Journal of Veterinary Research, vol. 38, no. 3, pp. 177-179.http://hdl.handle.net/2263/50988The journals have been scanned in colour with a HP 5590 scanner; 600 dpi. Adobe Acrobat v.11 was used to OCR the text and also for the merging and conversion to the final presentation PDF-format.The Lf values of the C₁, C₂ and D factors produced by Clostridium botulinum types C and D were compared with the results of in vivo quantitative tests. It was found that the flocculation test is a reliable method of determining these antigens quantitatively.en©South Africa. Dept. of Agricultural Technical Services (original). ©University of Pretoria. Dept. of Library Services (digital).Veterinary medicineSouth AfricaVeterinary medicine -- South AfricaArticle