Dr Danie Odendaal – Veterinarian Network Increase general resistance, Increase specific resistance, Decrease exposure, and Prevent exposure. As discussed previously, the development process of every disease is different and therefore the prevention or management of every disease also needs a different approach to prevent or interrupt the process. Basically, 4 approaches are used in the… Continue Reading
Dr Alf Lategan and Dr Martin van der Leek All over the world, dairies experience an increase in somatic cell count (SCC) during summer and autumn. The extent to which climatological factors contribute to this increase in South Africa is unknown, although the weather is blamed anecdotally. Consequently, the value of heat abatement or other… Continue Reading
Dr Barry Coates (BVSc) ‘Clinical’ milk fever and subclinical hypocalcaemia are essentially the same thing – they are both low available calcium levels in the blood. It’s only the degree or severity that differentiates the two conditions. It’s the subclinical hypocalcaemia however, that is far more costly than clinical milk fever for two simple, devastating… Continue Reading
Dr Francois van Niekerk Humansdorp Veterinary Clinic DONOR Requirements Xylazine 1.2 ml IM 2. Lignocaine 3. 23g needle 4. Nº 10 or 15 scalpel blade and handle 5. Blood collection needle [4 – 5mm internal diameter, available from Instavet] or trocar & cannula of similar diameter. Large plastic funnel plus plastic tube [latter optional]… Continue Reading
Dr Hanre Ferreira Vaccination against helminths is a control concept that is currently being successfully applied in the control of Dictyocaulus viviparus (lungworm) infection in cattle in some parts of the world. Similar attempts have been made to develop vaccines against several economically important gastrointestinal nematodes in small stock and cattle (Ekoja & Smith 2010;… Continue Reading
Dr Danie Odendaal Key Points Fertility and health of a beef cattle herd can be built in stages over a five year period by focusing specifically on the management of replacement heifers. Improving fertility is based on selection, for functional efficiency and careful management of replacement heifers from weaning, until the end of their second… Continue Reading
By Adam Geiger, Ph.D., dairy research nutritionist Marco Rebollo, DVM, poultry research specialist and Mark Wilson, Ph.D., swine reproductive physiologist, Zinpro Corporation Inflammation is a natural and essential component of the immune response to infection, pathogens and/or tissue damage. While often considered a negative reaction, inflammation serves as a protective response to pathogens or tissue… Continue Reading
