Wombaroo Pig Milk Replacer 5kg. Wombaroo Pig Milk Replacer is a nutritionally balanced milk substitute for piglets of all breeds. Use for orphaned or low-birth weight piglets, large litters or when the sow’s milk is limited. Key Features: Specifically formulated to match the composition of sow’s milk. High in Whey Proteins – rich in essential amino acids required for healthy growth. Elevated levels of Omega 3 & 6 – essential fatty acids for skin, cell & brain development.