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Published on August 21st, 2000
Updated on June 18th, 2026

Written by Angela Walter, DVM
If a puppy is too weak to nurse or the mother will not care for her litter, the pups may need to be tube fed.
If a puppy is too weak to nurse or the mother will not care for her litter, the pups may need to be tube fed. The necessary equipment includes the appropriate sized soft pliable catheter (your veterinarian will help you get the right size), syringes to hold formula, the formula warmed in a bowl, and a marking pen.
Tube Feeding Preparation
The best way to learn to tube feed is by having your veterinarian or veterinarian technician demonstrate and talk you through the procedure for the first puppy. Then you can feed the rest of the litter at the clinic under supervision. If the procedure is done incorrectly, serious harm can be done to the pups. It is very important to be sure that you are performing the procedure correctly to prevent any problems.
After weighing each puppy and determining the amount to feed, measure each individual puppy from the nostril to the last rib for the feeding tube. This is the length of feeding tube you will insert. Mark the tube with a pen or marker. A tube for each puppy would be ideal. These steps should be repeated each and every day that the animals will be tube fed formula.
How to Tube Feed a Puppy
Draw up slightly more formula into the syringe and catheter than is needed for the pup. Place the animal on a towel in your lap with the head and chest on a slight upward incline. Hold the back of the puppy's head gently. Open the animal's mouth with that same hand. Direct the tube into the front of the pup's mouth (NOT from the side). Do not force the tube to go in. The puppy will reflexively swallow when the tube is at the esophagus. If the animal does not swallow and you force the tube, it could end up in the trachea. Once the puppy swallows, the tube should slide easily to the point you have marked. Once it is in the proper location, slowly depress the plunger on the syringe.
The tube should be withdrawn after feeding half of the required meal and the puppy should be burped. After burping, reinsert the tube and feed the rest of the meal. Burp the pup again and stimulate the perineal area for urination and defecation. After the feeding, the puppy's abdomen should appear rounded and full.
Before feeding the first puppy, practice drawing up water or formula and depressing the plunger. Note the force of the water or formula as it leaves the catheter. Gently depress the plunger to avoid damaging the puppy's stomach wall. It will take practice to handle the syringe, catheter, pup, and formula all at once.
Puppy Tube Feeding Problems
Do not overfeed and overdistend the abdomen. This will cause the puppy pain, causing it to struggle and cry.
If the puppy coughs or gags when you start to depress the plunger, withdraw the feeding tube and start over. You may have the tube in the trachea. If you continue to inject the formula, the animal may get aspiration pneumonia or suffocate.
If the puppy regurgitates or vomits the food, do not feed it again at that meal. If it occurs for 2 meals in a row, contact your veterinarian.
It is preferable to feed at least 2-3 meals a day by bottle to allow the puppies to suckle. This may help decrease the amount the animals attempt to nurse on each other, which may result in skin sores.
What are the signs that a puppy needs tube feeding? A puppy may need tube feeding if it is too weak to latch onto the mother, is consistently pushed away from the nipple by littermates, fails to gain weight daily, cries constantly (a sign of hunger or pain), or the mother refuses to nurse the litter. Newborn puppies that lose more than 10% of their birth weight in the first 24 hours are at particular risk and should be evaluated promptly — contact your veterinarian right away if you notice any of these warning signs.
How often should I tube feed a newborn puppy? Newborn puppies have tiny stomachs and need frequent, small meals. Most veterinarians recommend tube feeding every 2–4 hours around the clock for the first week of life, gradually spacing feedings to every 4–6 hours as the puppies grow stronger. The exact volume per feeding is based on each puppy's individual weight and should be calculated with your veterinarian's guidance to avoid overfeeding. https://www.merckvetmanual.com/management-and-nutrition/nutrition-small-animals/nutritional-requirements-of-small-animals
What is the biggest mistake pet parents make when tube feeding puppies? The most dangerous mistake is placing the feeding tube in the trachea (airway) instead of the esophagus and then depressing the plunger. Delivering formula directly into the lungs can cause aspiration pneumonia or suffocation — both life-threatening emergencies. Never force the tube if the puppy does not swallow reflexively, and always withdraw the tube and start over if the puppy coughs, gags, or shows any distress when you begin to push the plunger. Having your veterinarian or a veterinary technician demonstrate the technique in person before you attempt it at home is strongly recommended.
What formula should I use when tube feeding puppies? Use a commercial puppy milk replacer formulated to meet the nutritional needs of neonatal dogs — never cow's milk, which can cause digestive upset. Look for products that meet established nutritional standards for growth. Your veterinarian can recommend an appropriate formula; the AAFCO nutrient profiles for dog food provide a baseline reference for what complete puppy nutrition should contain. https://www.aafco.org/consumers/understanding-pet-food/
When can I stop tube feeding and transition puppies to bottle or solid food? Tube feeding is typically a short-term bridge. As soon as a puppy is strong enough to suckle, offering at least 2–3 bottle feedings per day alongside tube feeding is encouraged, as suckling supports healthy oral development and reduces the urge to nurse on littermates (which can cause skin sores). Most puppies begin transitioning to softened solid food around 3–4 weeks of age. Your veterinarian will help you determine the right timeline based on each puppy's weight gain and developmental progress.
When should I call my veterinarian during tube feeding? Call your veterinarian immediately if a puppy vomits or regurgitates formula at two consecutive feedings, shows labored breathing or persistent coughing after a feeding (possible aspiration), fails to gain weight despite regular feedings, or has an abdomen that appears bloated or hard rather than gently rounded after a meal. These can be signs of serious complications that require prompt professional care. If you suspect a puppy has ingested a toxic substance at any point, contact the ASPCA Animal Poison Control Center. https://www.aspca.org/pet-care/animal-poison-control
Use this chart as a starting reference when tube feeding newborn or weak puppies. Always confirm volumes and frequency with your veterinarian before you begin — individual puppies may need adjustments based on health status, breed and the specific formula you are using.
| Puppy Age | Approximate Body Weight | Formula per Feeding | Feedings per Day | Daily Formula Total |
|---|---|---|---|---|
| Days 1–3 (newborn) | 100–200 g (3.5–7 oz) | 2–4 mL | 6–8 | 12–32 mL |
| Days 4–7 | 150–250 g (5–9 oz) | 4–6 mL | 6–8 | 24–48 mL |
| Week 2 | 200–350 g (7–12 oz) | 6–10 mL | 5–6 | 30–60 mL |
| Week 3 | 300–500 g (10–18 oz) | 10–14 mL | 4–5 | 40–70 mL |
| Week 4 (transition) | 400–700 g (14–25 oz) | 12–16 mL | 4 | 48–64 mL |
General rule of thumb: Neonatal puppies typically need roughly 1 mL of formula per 30 g (1 oz) of body weight per feeding, increasing gradually as they grow. Weigh each puppy daily — consistent weight gain is the clearest sign that feeding volumes are appropriate. https://www.merckvetmanual.com/management-and-nutrition/nutrition-small-animals/nutritional-requirements-of-small-animals
Key notes on reading this chart:
How do I know how much formula to give a puppy during tube feeding? Weigh each puppy individually before every feeding session, then calculate volume based on body weight — a commonly cited starting point is approximately 1 mL per 30 g of body weight per feeding, adjusted upward as the puppy grows. Your veterinarian should confirm the exact amount for your litter, since breed size and health status affect requirements. https://www.merckvetmanual.com/management-and-nutrition/nutrition-small-animals/nutritional-requirements-of-small-animals
How often should I tube feed a newborn puppy? Newborns in the first week of life generally need 6–8 feedings spread evenly across 24 hours. As puppies grow and their stomach capacity increases, you can gradually reduce frequency to 4–5 feedings per day by weeks 3–4. Consistent spacing between feedings helps maintain stable blood glucose and prevents overdistension.
What formula should I use when tube feeding puppies? Use a commercial puppy milk replacer formulated to meet canine nutritional needs — not cow's milk, goat's milk or homemade recipes, which do not match the nutritional profile of canine mother's milk. Look for products that meet AAFCO nutrient profiles for growth. https://www.aafco.org/consumers/understanding-pet-food/
What are the warning signs that tube feeding has gone wrong? Stop feeding immediately and contact your veterinarian if the puppy coughs, gags or shows labored breathing when you begin depressing the plunger — this may indicate the tube has entered the trachea rather than the esophagus, which can lead to aspiration pneumonia. Other red flags include repeated vomiting or regurgitation, a hard or severely distended abdomen, persistent crying during or after feeding, or failure to gain weight.
Is tube feeding safe to do at home without veterinary supervision? Tube feeding carries real risks — including aspiration pneumonia — if performed incorrectly. The procedure should first be demonstrated in person by a veterinarian or veterinary technician, and the first full litter feeding should ideally be completed at the clinic under supervision. Once you are confident in the technique, home feeding is possible, but your veterinarian should remain your first call for any concerns.
When can puppies stop being tube fed? Most puppies can transition away from tube feeding as they gain strength and begin nursing reliably on their own or accepting bottle feedings. The transition to gruel and then solid food typically begins around weeks 3–4. Your veterinarian will help you determine the right timeline based on each puppy's weight gain, suckling reflex and overall health.
This article was created with assistance from AI tools and reviewed for accuracy by Petco's content team.
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