Is the temperature of the milk replacer important?
Since the newborn may have trouble generating enough heat to maintain its body temperature, the milk replacer should be warmed to 95o to 100o F (35 to 37.8°) for best results. Test the milk replacer’s temperature on your forearm (as you would for a human baby) before feeding. The milk replacer should be about the same temperature as your skin or only slightly warmer. As the puppies grow older (at four weeks of age and older), the milk replacer can be fed at room temperature.