Hi Kimmiebear,
You're going to have a hard time finding info on animal based fodder, as it has been banned in the UK for many years.
What you're looking for is info on Meat and Bone Meal, or MBM, for which you'll have to go abroad. I found one such Canadian site here:
http://www.rothsay.ca/specs/mbm_spec.html
Carbohydrate is not usually included in such analyses but can be estimated by 100 - protein % - lipid % - ash% - moisture %.
Hope this helps. If you need any further help just ask!