Be aware of what is in the Natural Balance rolls. See this link from their site for info and ingredients...
Dick Van Patten's Natural Balance® Dog Food Rolls
Wheat, Sugar, and Salt are in the top few ingredients. NO wonder the dogs are drinking lots of water after they eat it. Be aware of what's in the food you feed!!!
I think a better choice would be satin balls for gaining weight. Much more nutritious. Here's the recipe ....
5 pounds ground beef, fatty (not lean)
5 cups Total whole grain cereal
5 cups oats (slow cooking type)
2½ cups raw wheat germ
¾ cup oil
¾ cup molasses
6 egg yolks
5 packets gelatin
Mix up, form balls, freeze, feed as treats or food supplement.
Mix all ingredients together thoroughly like you would a meatloaf.
Roll into balls no larger than 1 inch diameter.
Divide into at least 6 separate containers or bags. Freeze. Thaw as needed for feeding.