Manure ( http://skyrim.nexusmods.com/mods/35670 ), as described furthers the immersion by allowing in-game animals to dump. The problem is, with all animals allowed to dump, this runaway cowchip production literally creates a mess of accumulated chips that it's impossible to keep up by picking them up or waiting for a respawn, and in some places there's a terrible pileup at livestock pens.
So, until the jonx0r readjusts the mod to a more manageable level of chip production and limit the production to a few animals, and a more proper system of uninstallation, what I did was the following removal procedure:
1.) teleport over to QAsmoke (open the console and then coc qasmoke)
2.) wait for 30 days to clear all the poo
3.) save the game (must be new)
4.) exit
5.) disable and remove the mod
6.) load the game, then coc back to say, whiterun (coc whiterun)
7.) save the game again, then exit. Examine your log file; Papyrus/SKSE would then dump and destroy the unused scripts.
8.) Run the game again and load the hard save. Do a few things before exiting. This time recheck your log file, there should be no traces of the script.
This process removes about 1mb of unused glop from the gamesave.