Interesting thing is not what nutrition that each animal has but what does the snake need so that it can grow. Also the percentages seem a little off as well. There should be lotsa fat and protein (like most mammals) but these seem to make up <50% of the total body weight in the test animals....what is the rest? I presume bone makes up some but the proportions seem a little wrong.
My interest is what is the nutritional composition of a lizard as that is what most snakes have for their natural prey...other reptiles.
Cheers Hawkeye