Wombaroo Sheep Milk Replacer 10kg. Wombaroo Sheep Milk Replacer is a nutritionally balanced milk substitute for all breeds of sheep. Use for orphaned lambs or when the ewe’s milk is limited. Key Features: Specifically formulated to match the composition of sheep milk. Elevated Fat Content – to cater for the high energy demands of lambs and to allow early weaning. High in Protein & Essential Amino Acids – including cysteine for healthy fleece growth.