Cameron, Colin McKenzieFuls, W.J.P.South Africa. Dept. of Agricultural Technical ServicesTustin, R.C.De Lange, M.Reinecke, R.K.Walker, Jane B.De Kock, V.E.2009-07-282009-07-281970Cameron, CM & Fuls, WJP 1970, 'Immune response to dead and live Eschericia coli vaccines and colostral transfer of immunity to calves and lambs', Onderstepoort Journal of Veterinary Research, vol. 70, no. 3, pp. 157-163.http://hdl.handle.net/2263/10871The journals have been scanned with a SupraScan 10000RGB scanner; 24-bit true colour, 400 dpi, saved in TIFF-format. Copies of the master images have been converted to black & white, 1-bitmap images and OCRed with ABBYY Fine Reader v.9 software. Adobe Acrobat v.9 was used for the merging and conversion to the final presentation PDF-format.Administration of a single injection of killed polyvalent Escherichia coli (Migula, 1895) vaccine to ewes and cows resulted in a marked increase in the mouse protective properties of their sera. Antibodies were effectively transferred via the colostrum and the degree of passive immunity thus obtained was sufficient to protect lambs against colisepticaemia. Live vaccine prepared from rough strains was able to protect mice against infection but it did not elicit a good antibody response in ewes in terms of OK titres and mouse protecting antibodies.Article consists of 7 pages. Article contains a reference list, 10 figures and 4 tables.en©South Africa. Dept. of Agricultural Technical Services (original). ©University of Pretoria. Dept. of Library Services (digital).Veterinary medicineVeterinary reportsSouth Africa (SA)ColostrumCalf diseasesSheep diseasesCattle -- Diseases -- South AfricaSheep -- Diseases -- South AfricaMammary glands -- SecretionsVeterinary vaccines -- South AfricaArticle