Thank you all for the advice,
Mr. Bronson
Actually disease and parasites are my main concern, my rats seem healthy and are well fed but theyre in a barn and might come in contact with wild ones.
Miss Hoxie
I will try with some annual flowers next spring to see the benefits, up until now I have mainly been using it for a mulch underneath fruit
trees and bushes (seemed pretty safe for that)
Mr Hunter
Nutritional deficiencies really had not crossed my mind, up until now..., the food I have been giving them is (according to my research) nearly perfect in nurition and I quite often supplement with things like nuts, fruit, pumpkin from around the yard, I also havent seen any signs of deficiencies in the rats, can I assume I'll see it in the rats long before I see it in the soil or plants?
Mr Boone
To hear it did not have any negative effects even from a wild nest sooths some of my concerns. Any idea how much time between the burying end the planting into it?