Calf Milk Replacer After the colostrum, the focus needs to be on growth and development of calf's immunity. Poor feeding in initial days can have immediate consequences for the development of the calf into a productive dairy cow. Start with a high dosage of calf milk replacer directly after the colostrum. Calf milk replacers (CMRs) provide a convenient way to feed pre-ruminant calves. They can be stored for long term as powder and mixed with water just prior to feeding. Calves can then be milk reared anywhere and at any time without having to source liquid whole milk. Provided the CMR is formulated correctly from good-quality ingredients and fed according to the instructions, which are usually on the CMR bag, calves can grow equally well when reared on CMR and heir rumens [...]