ISSUE FOCUS FEED & ADDITIVE MAGAZINE February 2026 43 minutes. It can be refrigerated for 48 hours, or up to 7 days if a preservative is added. For long-term storage, colostrum can be frozen at -20°C for up to one year to maintain a safety stock for emergencies. Thawing must be conducted slowly in a water bath at a temperature below 50°C. The use of microwaves or boiling water is prohibited as it may alter the delicate molecules like antibodies. Pasteurization (60°C for 60 minutes) is a recommended practice that reduces microbial load, thereby improving the rate of transfer into the calf’s bloodstream. A NEW TECHNICAL COLOSTRUM REPLACER In situations where maternal colostrum is unavailable, of insufficient quality (<22% Brix), or comes from cows infected with diseases, a high-performance substitute is required. Elvor Immune is a technologically advanced scientific solution specifically formulated to secure calf's start in life through a formula that integrates both immunity and nutrition to meet all the needs of the newborn calf. A primary advantage of Elvor Immune is its high concentration of colostrum powder (50%), providing a direct and reliable source of bovine IgG for systemic immunity. This base is supplemented with 10% egg products containing immunoglobulins Y (IgY). These IgY molecules offer a complementary and synergistic effect: while bovine IgG circulate in the blood to protect the entire body, IgY act locally within the intestinal lumen. They specifically bind to pathogens like Rotavirus, E. coli and cryptosporidium, preventing them from adhering to the intestinal wall. This dual-barrier approach maximizes survival chances and significantly reduces the incidence of early digestive disorders. Beyond immune support, Elvor Immune contains high-tech nutritional additives to support the newborn's metabolism. It includes partially chelated trace elements (Iron, Zinc, Manganese) and organic selenium, which offer superior bioavailability compared to inorganic forms, ensuring optimal assimilation for skeletal and immune development. The addition of live yeasts and fructo-oligosaccharides (FOS) promotes the establishment of beneficial gut microflora and accelerates rumen development. By providing the right IgG levels, Elvor Immune allows farmers to overcome colostrum deficiencies while providing the necessary energy for thermoregulation and vigorous early growth. Photo: Elvor
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