Big Secret: you don’t necessarily HAVE to compost manure first, especially if it’s already mixed with lots of shavings, straw, etc (which in most well-managed coops it tends to be). I have used manure-laced litter straight from the coop around heavy feeders like tomatoes and squash—they love it. Just use small amounts at one time. Or you can also spread “fresh” manure on your garden well before planting and let it break down in situ. If you are growing commercially, check regulations first; if you are growing purely for home use, use common sense (ie, don’t dump raw manure on a lettuce plant the day before you make a salad with it). Fertilizing ornamentals or fruit trees are other options. (btw IMHO throwing manure in the trash is sacrilege.)