Cooked eggs(raw eggs rob a dogs body of amino acids), cooked rice(about a cup when it's cooked), raw fat(4-6oz+or-), raw cooking oil(tbsp), $lbs of raw meat and meat stuff(Liver, kidney.tongue, heart etc).
Not a good idea to have anyone to gain wait too fast. Hard on the entire system. Pancreas can only do so much at a time. Liver can be taxed as the Kidneys.
And don't fool yourself into thinking a dog needs to be weighty to be healthy. Ask yourself when the last time was you saw a weighty marathon runner.
I had one woman come and say my dogs are skinny. She kinda took offence when I said"Ya. It doesn't look like you run 20 miles a day."
If you saw what and how much I feed my dogs. You may even say I was cruel by"starving dogs". I know what it feels like to run with as much as I weigh in the summer and how much easier it is when my weight decreases by 15-20 lbs in winter.
But if you say he/she(the dog) "needs" to gain weight fast....sugar. Within moments of consuming sugar the body is triggered into storing fat. it's the same with humans and animals and even birds.
When my dogs are fed commercial dog food(kibble) they get fat. When they get fat they have a tendency to diabetes and liver and kidney probs as well as coat and immunity issues. Much less now the strain it must put on their heart eh.
I like skinny dogs, cold water, fat beef and hot coffee.
