Wombaroo Rabbit Milk Replacer 1kg. Rabbit Milk Replacer is a nutritionally balanced milk substitute for all rabbit breeds. Use for orphaned kits, large litters or when the mother’s milk is limited. Key Features: Specifically formulated to match the composition of rabbit milk. Elevated Protein & Fat Content – for improved growth rate of kits. Contains ‘Milk Oil’ – antimicrobial fatty acids that are essential for good gut health.