with rotten meat and fresh shit your BEGGING for all kinds of bad bacteria in your soil which is terrible for root systems.

besides that fresh manure is never a good thing to add to soil because it causes heat. and hot soil stresses the hell out of plants. so unless you have access to a source of some dookie thats been sitting around for a couple of years its best not to use any @ all.
I use 1/3 peat moss,
1/3 pearlite,
& 1/3 compost. and ive never had any kind of soil problems. My plants are growing great right now....