How to Tube Feed a Newborn Puppy: Step-by-Step Guide

A puppy that cannot nurse or is not getting enough colostrum will fade and die within days. Tube feeding is the most reliable way to get nutrition into a very young puppy that cannot do it himself.

Tube feeding is not difficult, but it requires precision and confidence. Practised correctly, it is safe and effective. Done incorrectly — particularly if the tube is placed into the lungs rather than the stomach — it is fatal. This guide teaches you to do it correctly.

When to Tube Feed

Tube feeding is appropriate when:

• A puppy is too weak to nurse effectively
• A puppy is not gaining weight after 24 hours of age
• A very large litter means some puppies are not getting adequate milk
• The dam has insufficient milk or mastitis
• A puppy is failing to thrive despite nursing

If a puppy is strong enough to nurse with assistance — latching when placed on the nipple — encourage nursing first. Tube feeding bypasses the natural suckling reflex and the stimulation it provides.

Equipment You Need

• Feeding tube: 5 French (very small breeds), 8 French (medium breeds), 10 French (large breeds). Soft rubber or silicone urethral catheter tubing works well.
• Syringe: 5–12 mL depending on puppy size
• Colostrum or puppy milk replacer: Use fresh colostrum from the dam if available, or a commercial milk replacer (Esbilac, PetAg)
• Tape or permanent marker: To mark the tube's correct depth
• Warm water: To warm the milk replacer to body temperature (38°C)

Step 1: Measure the Tube Length

Hold the tube against the outside of the puppy's body. Measure from the puppy's last rib to the tip of the nose. Mark this point on the tube with tape or a marker. The tube will only be inserted to this mark — this ensures the tip ends in the stomach, not the lungs.

Step 2: Prepare the Milk

Warm milk replacer to body temperature (38–39°C). Never feed cold milk — it chills the puppy and can cause aspiration. Test the temperature on your wrist — it should feel neutral, not hot or cold.

Typical volumes per feed:

• Under 100g body weight: 1–2 mL per feed
• 100–200g: 2–4 mL per feed
• 200–400g: 4–8 mL per feed

Feed every 2 hours for the first week.

Step 3: Place the Puppy

Hold the puppy in a natural position — slightly upright, belly-down in your hand. Do not hold it on its back. The oesophagus runs along the left side of the trachea; keeping the puppy upright helps route the tube correctly.

Step 4: Insert the Tube

Gently open the puppy's mouth and slide the tube gently over the tongue, following the natural curve of the throat. Slide it in smoothly to the marked depth.

Signs the tube is in the stomach (correct):

• No resistance or coughing
• The puppy does not cry or struggle violently
• You can feel (or see) the tube outline along the side of the neck/oesophagus
• Blowing gently into the tube produces a gurgling sound over the stomach

Signs the tube may be in the lungs (withdraw immediately):

• The puppy goes rigid or struggles violently
• The puppy's breathing immediately changes
• You feel no resistance at all during insertion (trachea is less resistant than oesophagus)

If you are unsure, withdraw the tube and start again.

Step 5: Deliver the Milk

Once confident the tube is in the stomach, slowly depress the syringe plunger over 20–30 seconds. Never rush — too-fast delivery causes regurgitation and aspiration.

After the full volume is delivered, gently withdraw the tube and keep the puppy upright for a minute.

Step 6: Stimulation

After each feed, gently stimulate the puppy's hindquarters with a warm, damp cotton ball to trigger urination and defecation — mimicking what the dam does with her tongue. Puppies cannot eliminate on their own for the first 2–3 weeks.

Summary

Tube feeding requires: correct tube measurement (from last rib to nose tip), body-temperature milk, correct tube placement confirmed before delivery, and slow, steady milk delivery. The critical error to avoid is placing the tube in the lungs — insert slowly, watch for signs of correct placement, and withdraw immediately if the puppy struggles violently. A puppy that receives adequate nutrition and warmth in its first days has a strong chance of survival.