Shkap, VardaPipano, E.Marcus, S.Krigel, Y.Verwoerd, Daniel Wynand2014-01-222014-01-2220131994Shkap, V, Pipano, E, Marcus, S & Krigel, Y 1994, 'Bovine besnoitiosis : transfer of colostral antibodies with observations possibly relating to natural transmission of the infection’, Onderstepoort Journal of Veterinary Research, vol. 61, no. 3, pp. 273-275.0330-2465http://hdl.handle.net/2263/33065The articles have been scanned in colour with a HP Scanjet 5590; 600dpi. Adobe Acrobat XI Pro was used to OCR the text and also for the merging and conversion to the final presentation PDF-format.Colostral antibodies to B. besnoiti were detected by immunofluorescence in four calves born to two Besnoitia-infected dams, with titres ranging from 1:64 to 1:1024. A specific antibody titre of 1:1024 was found in colostrum collected from one of the dams. Two of the newborn calves, when sampled immediately after birth, were serologically negative to B. besnoiti, but became positive on the next day. In all the calves, antibodies were detectable up to the age of 4 months. Observations concerning passive transfer of antibodies from Besnoitia-infected dams to offspring, and transmission of the infection among infected and non-infected closely kept cows, are discussed.en© ARC-Onderstepoort (original). © University of Pretoria. Dept of Library Services (digital).Veterinary medicineVeterinary medicine -- South AfricaArticle