Weight retained from feeding

I was reading some old threads about ball python growth. I know there is no set growth pattern for snakes, there is averages tho. I was wondering has anyone done any test to see how much snakes gain compared to the food they eat. Ex: a 700 gram Bp eating a small rat(80 grams) should on average retain 10% of the meals weight.
This might not even be possible just Wondering if anyone has tried to see if it is possible to measure how much %of a meal a snake retains after digestion and defecation is complete.
If you or someone has done this would live to hear the results complete or theory

This probably isn't the answer you are looking for because I haven't recorded anything, but that being said, I do take some time to weigh before, after, and after she deficates. While I haven't written anything down, I've noticed a fairly consistent 30-40 gram increase after each meal of 2 small rats. I'm not sure what the percentages are right there but I'm happy with 30-40 grams each week.

Hope this helps,
SC

depends on the snake. habit, age size, ect... I know you are looking for an average. but the average of a hatchling will be different than a yearling. or a female who just had a clutch of eggs. these numbers will be all over the place. some of my snakes will only eat certain times of the year. others all year. those averages will differ greatly. I had a female that I picked up in the beginning of july a few years ago. she weigh 749 grams. she breed that year in dec weighting 2800 grams. I think she just had a clutch and was also well under feed. we picked her up just to save her. she's now one of the best feeders I have. the best thing to do is, keep records of all your snakes. when they feed, weights when they go off feed, ect.. you will get to know each one of your snakes and their feeding habits, what they feed on the best. I have a lot of ball pythons and the average means nothing to me. it's how good each one grows year after year knowing their eating habits. good luck, I know this isn't the answer you were looking for but I hope it helps. don

Don- I keep record on all my animals, feed,refuse,shed,weights after defecates,defecates. I know my snakes average weight gains.
I think when I have my first clutch my hold back I might have to do a little experiment and weight snakes, food, and keep records to try to figure out an general average for the retained weight of the food consumed. This will be a lot of work but could be a cool experiment or turn out to be a complet waste of time lol.