HERFS/AUTUMN BONUS TYDSKRIF 2026

Today’s high quality milk replacers (CMR), when correctly matched to specific calf rearing systems, provide several benefits to the dairy producer and calf breeder. These benefits include improved calf performance and economics. Choosing and using a calf milk replacer is only one part of successful calf rearing. And when in the midst of a foot- and-mouth disease crisis, it could mean the difference between life and death for calves. Energy and protein Because fat is the most concentrated energy source, the fat content of a milk replacer will be responsible for most of the difference in energy levels. Could a good quality milk replacer save calves’ lives? By Retief Nel, Ladismith Poeier Calf growth and performance is related to a large number of factors, while differing protein levels, protein/energy ratios, and protein sources interact. Growth is regulated by daily protein and energy intake. Some conditions, such as cold weather, require feeding at a higher energy level. The metabolisable energy content of milk replacers is primarily determined by fat and carbohydrate levels. “Choosing and using a calf milk replacer is only one part of successful calf rearing.” Since calves have no antibody transfer from the mother, they depend on colostrum in the first 12 hours of life to provide the required immunoglobulins to jumpstart both gut development and the immune system. Proper colostrum management and good quality milk replacer can increase growth by approximately 150 g more per day before weaning. This is where a silver stabilised hydrogen peroxide solution, such as Peroxsil® that is designed to protect your livestock and has proven to kill foot-and-mouth disease in drinking water, could make the life-or-death difference for your calves while in the grips of a foot-and-mouth crisis.