AJ Pantophlet, MS Gilbert, JJGC van den Borne, WJJ Gerrits, H Roelofsen, MG Priebe, RJ VonkAbstract Calf milk replacer (MR) contains 40 to 50% lactose. Lactose strongly fluctuates in price and alternatives are desired. Also, problems with glucose homeostasis and insulin sensitivity (ie, high incidence of hyperglycemia and hyperinsulinemia) have been described for heavy veal calves (body weight> 100 kg). Replacement of lactose by other dietary substrates can be economically attractive,...