I agree with everyone else to definitly compost your poo and straw. I would not place directly in the garden unless its winter like some say they do, but even still I'm not sure about that. If you do the composting and it gets proper heating and time to break down it will help break down any pesticides or herbacides that the farmer might have used on is hay or straw fields, which you definitely don't want in your garden. But you don't have to buy an expensive composter from the the store, I've made my own that works just as well. One of mine is just four pieces of wire fencing put together like a box, no top or bottom. In this i place mostly grass clippings, dead flower stalks, leaves exct. bulky stuff when its full i take off the box and move it next to it and then fork everything from previous stack back in and the bottom is good soil. I only really do the cube is to keep my girls from scratching it everywhere. They love nothing better than good compost, lots of good tasty bugs and at the bottom good dirt to take a bath in, I'd rather the good soil go in the garden for my maters than being carried away in their feathers( they have other spots to play in). My other composter in a plastic drum, that I cleaned and made a door and my husband made a stand out of rolling casters so I can turn it, and drilled holes and it works great and was way cheaper than the store bought composters. The store bought ones cost over a 100 bucks and mine maybe twenty, just had to buy the casters, hinge and lock for door, drum was obtained for free. In the drum I place the poo, and vegi scraps, plant clippings and such, it does smell when you lift the lid but once closed you can't smell it in the yard and it keeps the chickens out and decreases the time it takes to decompose and be ready for use. I just turn when every I think of it or feel like it.
good luck in what ever you decide to do.