Unless you have a reason for wanting to use manure such as you may have a horse
and need to find a place to use the by products I would avoid it. This is only
a personal opininion based on my own experience. Unless you are in a situation
to know for sure that the manure got hot enough to kill the seed s from the hay
and grain you may be adding more weeds to your garden. If you follow good
rotation practices and a program of planting non-invasive green manures you
would probably be better off.