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Wombaroo Guinea Pig Milk Replacer is a milk substitute for guinea pig pups — orphans, large litters, and sows whose milk is limited. It is formulated to match the composition of guinea pig milk, which is why protein is set at 42%, second only to the cat formula in this range, against 24% fat and 20 MJ/kg, to sustain the rapid growth of pups. It also carries stabilised Vitamin C, which Wombaroo lists as an essential nutrient for healthy guinea pigs and includes here for joints. One level 6.5g scoop makes 35 millilitres of milk, and the 190g pack PeekAPaw stocks makes about a litre. Made-up milk keeps a day in the fridge or two weeks frozen, so mixing a batch and freezing it in ice cube trays is the practical way to handle small, frequent feeds. Ask a vet if a pup is not gaining weight.
Key Features
- Like Mother's Milk – formulated to match the composition of guinea pig milk.
- High in Protein – to sustain the rapid growth of pups.
- Vitamin C for Joints – an essential nutrient for healthy guinea pigs.
Ingredients
Whole milk solids, whey protein, casein, vegetable oils, omega-3 and omega-6 fatty acids, stabilised Vitamin C, vitamins A, B1, B2, B3, B5, B6, B9, B12, C, D3, E, K, biotin, folic acid, choline, calcium, phosphorus, potassium, sodium, magnesium, zinc, iron, manganese, copper, iodine, selenium.
Typical Analysis
| Protein | 42% |
| Fat | 24% |
| Ash | 6% |
| Moisture | 4% |
| Energy (ME) | 20 MJ/kg |
Making Up Milk
To make 35mL of milk: Mix 1 level scoop of powder (6.5g) with 30mL of warm water.
To make 1 litre of milk: Mix 190g of powder with 870mL of warm water.
Add about half the water to the powder first and mix to a paste. Then add the remaining water and mix thoroughly. Pre-boil the water to ensure it is sterilised. If the water is too hot it can cause the milk to curdle. If it is too cold then it will be difficult to disperse the powder. An electric whisk can be used for mixing larger quantities. Milk can be stored in the fridge for a day or can be frozen for up to 2 weeks. It is useful to make up larger quantities and store it frozen in small portions (e.g. ice cube trays), so that the required daily feed volumes can be easily thawed out. Once thawed out, discard any unused milk, and wash feeding utensils thoroughly.

