Yes, I believe it has also been called actinomycetes
I personally dont like to use any type of manure in my mixes. I have used minmal amounts of Chicken and rabbitt poop, and worm castings, in a peat based mix, but this is about my limit. Rabbitt droppings dont actually need to be composted before using, but whatever I dont use in my immediate mix is usually thrown into the compost heap for later use.
Ive been thinking about starting a separate compost consisting of cow manures and possibly horse manure. Would you recommend 50/50 ratio of manure/straw to get it started?