Hi all I am new to chickens and I have a large in the ground garden. I saw that people use chicken tunnels in their gardens to keep down bugs and weeds. It sounds awesome to do, however, what about salmonella? Will the chickens spread salmonella to my vegetables and other plants in the garden through their poop? How can I avoid salmonella spread to my plants in my garden and have chicken tunnels keeping the bugs down? Please let me know! Thanks