If you need to feed baby rabbits without a mother, you can use a milk replacer such as Kitten Milk Replacer (KMR) or goat milk, which can be purchased at pet stores or a local veterinarians office. Rabbit milk is the most caloric of all mammals, so it is recommended to add one tablespoon of 100% heavy whipping cream (no sugar) to each can of KMR. Most kits will not nurse from baby animal bottles, so it is best to use a sterile oral syringe or nipples that come with a syringe. It is important to feed baby rabbits no more than twice a day, but sometimes it takes more feedings to get an adequate amount into them, especially at first.

In addition to milk replacer, you can offer small amounts of hay and veggies to baby rabbits after 10 days. By day 20, they should be nibbling on solid food, and by day 28, no more milk replacer should be offered. Water can also be provided in a shallow dish, but make sure it is not too deep to avoid drowning.

If you are feeding orphaned baby rabbits, it is important to remember that both domestic and wild rabbit mothers only feed their young once or twice a day, and then leave them alone. If you find a nest of wild baby rabbits, check on them frequently before taking them in to feed them. If they seem content, it is unlikely that they have been abandoned.

Here is a sample formula recipe for baby rabbits made by Dr. Krempels:

• 1/2 cup fresh goat milk
• 0.20 tbsp (3 ml) heavy cream
• 1/2 cup kitten milk replacer (KMR)
• 1 to 1 ½ tbsp (10 capsules-worth of content) freeze-dried colostrum

Mix all of these in a container with a lid, then shake well until the colostrum is thoroughly dissolved. Warm the formula before giving it to the baby rabbit. Remember that caring for an orphaned baby bunny can be challenging, so it is best to seek help from a rabbit vet or a wildlife rehabilitator if possible.