How do chickens urinate?
I just want to get some clairification as to how chickens urinate. A friend swears that they urinate through their skin. I said NO WAY! LOL Anyway if someone could please put HIM straight I would really appreciate it. Thanks in advance.
You are right - chickens do NOT urinate through their skin. In fact, they don't sweat either, since they don't have sweat glands. The by-product of protein metabolism in mammals is urea, which is water soluble and released in the liquid we call urine. In birds, the by-product of protein metabolism is uric acid which is not water soluble. Instead, uric acid crystals are deposited on the fecal material when they defecate. So you can look at chicken poo and see white on it - that white is uric acid crystals which is the bird's version of pee.