I took my little duckling to the vet today because she is 1/3 the size of her hatchmate. Well, to be exact she is 99g and her hatchmate is 345g. They did an ultrasound and the lower part of her heart is enlarged. She is using all the energy from her calories to make her heart beat and doesn't have enough calories left over to grow. I have been hand feeding her scrambled egg and vitamins. Any ideas on other food that packs a caloric punch for her?