Bagged manure that is for sale does not smell because it has been left to age long enough that the breakdown of the waste material is complete and you're basically left with rich organic material. Is is raw waste that smells so much, due to some of the chemical compounds in it. Once raw waste is "processed" (by bacteria) - those compounds are digested and you are left with a powdery dry rich dark organic material.
Cow manure is a common fertilizer, as is chicken, bat (guano), or I suppose any other animals .. around here they offer to let you come and take the aged manure from the horse stables...
If you are doing yard composting (vegetable scraps, yard clippings, etc..) it is recommended that you not mix any animal waste into it because of dangers disease-bacteria that can exist in raw fecal matter.
I.E. - most homeowners do not have a "poop pile" in the back of their property where the poop can break down for 5 or 6 years. We couldn't live with the smell and the flies!!
If you go to an industrial cattle farm - it already smells!!!
They have no problem with tractoring the manure out to the pile and letting it compost. They turn it every few months, and after a while its just crumbly good organic material.
Good luck!