This is the most serious challenge that the modern system of breeding industry is experiencing today. Meanwhile, with the development of modern breeding industry, there are also extremely large amounts of by-products from livestock and poultry manure, and feed residues, which have also brought great pressures on the environment. If not well managed, the stink from these wastes is not only going to harm the quality of air but also result in proliferation of bacteria that may be disastrous to t...