Wombaroo Koala EarlyMilk 220g. Koala Milk Replacer Early Lactation is a nutritionally balanced milk substitute for koala joeys less than 160 days old. Joeys at this stage are furless, or with fine fur first appearing from around 90 days of age. Eyes are closed or just beginning to open from around 150 days of age. Completely confined to the pouch, but may poke head out occasionally. Key Features: Specifically formulated to match the composition of early lactation koala milk. Moderate energy milk, with a balance of carbohydrate & fat content. Protein high in sulphur-containing amino acids (cysteine & methionine) for the onset of hair growth.