- The pup is warm rather than cool to the touch.
- It is alert enough to hold its head and swallow.
- Breathing is quiet and not labored.
- The abdomen is not severely distended.
- There is no active seizure, major oral injury or obvious aspiration.
Oral hydration is only appropriate when the animal is warm and swallowing normally.
Use a small syringe and let the animal swallow each controlled amount.
Stop if fluid appears at the nose, breathing changes or swallowing becomes abnormal.
See the important points for this stage




Severe dehydration, shock, respiratory distress or neurologic impairment requires professional fluid therapy. Forcing liquid by mouth can cause aspiration.
1. Check whether oral hydration is appropriate
2. Oral hydration sequence for a stable pup
- Use a clean commercial oral electrolyte solution warmed to approximately body temperature.
- Use the smallest syringe that gives good control — often a 1 mL syringe for a small pup.
- Keep the pup belly-down or upright with the head in a natural position; never feed it flat on its back.
- Touch a tiny drop to the lips and allow the pup to swallow before offering more.
- Stop immediately for coughing, bubbling at the nose, clicking, head jerking or liquid coming from the nostrils.
- Once warmth and hydration are improving, Merck recommends introducing milk replacer gradually rather than switching abruptly from electrolyte solution to full-strength formula.
3. Use body weight as the control
Weigh at the same time each day on a gram scale. Merck notes that many orphan mammals have a stomach capacity of about 50 mL/kg — mathematically about 5% of body weight in mL — but that is a capacity reference, not a target feed volume. Initial feeds should be smaller and adjusted to the animal’s age, abdomen, stool, hydration and weight trend.
4. Start the written log now
- Weight in grams
- Time and amount of each oral fluid/feed
- Formula dilution when formula begins
- Urine and stool
- Abdominal fullness/bloating
- Behavior and activity
- Any coughing, nasal fluid or breathing change
