Milk for Mammals

Milk is the sole source of nutrition for young mammals up until weaning. The composition of milk is very different for each species, depending on the different physiological requirements of the growing young. Click on the links below for our range of species-specific milk replacers, each based on the composition of the natural mother's milk.

  • Horse Milk Replacer

    Wombaroo Horse Milk Replacer is a nutritionally balanced milk substitute for foals of all breeds. Use for orphaned foals or when the mare's milk is limited.

    Key Features

    • Specifically formulated to match the composition of horse milk.
    • High in Whey Proteins - rich in essential amino acids needed for muscle growth.
    • High in Omega-3 & 6 - essential fatty acids for skin, coat & brain development.

    Download Data Sheet



    Whole milk solids, whey protein, casein, lactose, vegetable oils, omega-3 and omega-6 fatty acids (including EPA & DHA), vitamins A, B1,B2,B3,B5,B6,B9,B12,C,D3,E,K, biotin, choline, inositol, calcium, phosphorus, potassium, sodium, magnesium, zinc, iron, manganese, copper, iodine, selenium.


     Solids when reconstituted      110 g/Litre        
     Protein      24 %
     Fat 12 %
     Carbohydrate 55 %
     Ash   5 %        
     Omega-3 & 6 Fatty Acids 2.8 g/litre
     Metabolisable Energy (ME) 1900 kJ/Litre        

    Pack Sizes

    10kg & 20kg.

    Success in hand-rearing foals greatly improves if they receive colostrum at birth. Foals that don’t get colostrum from the mother can be fed Impact Colostrum Supplement. The average light breed foal (50kg birth weight) should receive at least 500g (2 litres) of Impact Colostrum Supplement, preferably within 24 hours of birth. Commence feeding Horse Milk Replacer after the initial feeds of colostrum. Foals should be housed in a clean, draught-free environment and have access to a grazing paddock and fresh drinking water.

    Making up Milk

    To make 10 litres of milk: Mix 1.1kg of powder with 9 litres of warm water.

    Add half the water first and mix to a paste. Then make up to 10 litres with remaining water and mix thoroughly. Water is preboiled to ensure that 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. Wombaroo contains elevated protein levels, so the milk needs to be well mixed to prevent it from separating out. An electric whisk can be used for mixing. Milk can be stored in the fridge for a day or can be frozen for up to 2 weeks.


    Warm milk to about 30ºC and feed every two hours for the first week, reducing this to every 4 hours by week 2 and every 6 hours by week four.  Foals may be initially fed from a bottle and lamb's teat, however they can be trained to drink from a bucket. If leaving milk out for self-feeding offer it cold to reduce bacterial contamination. Always have clean drinking water available. Consult a veterinarian or experienced breeder for particular advice about husbandry of foals.


    Different breeds of horses have different birth weights and growth rates. A typical light breed foal has a birth weight of around 50kg and growth rate around 1.5kg per day during the hand-rearing period. However it may be difficult to monitor body weigh, so feed volumes can be estimated by age. Proper nutrition is essential during this time as skeletal deformities can occur weight gains are excessive. Over feeding can cause diarrhoea, so large deviations from the suggested feed volumes are not advised.


    When the foal is about 8 weeks old it should begin to show interest in solid food. Introduce a commercial starter feed into the diet and slowly reduce the volume of milk fed. At this time the foal should be exercised in a paddock and have access to both hay and pasture. Carers tend to wean foals quickly, but ideally they should not be weaned before 6 months of age.

    Feeding Guide (typical light breed foal)

     Birth 50 6.5 8 130 13.0
    1 60 7.5 9 138 13.5
    2 70 8.5 10 145 14.0
    3 80 9.0 11 152 14.5
    4 90 10.0 12 160 15.0
    5 100 11.0 13 167 15.5
    6 110 11.5 14 174 16.0
    7 120 12.0

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