Chicken manure (CM) generated
from these farms contains 25% or more dry matter, which is rich in
nitrogen. Although anaerobic treatment is an established method for
treating animal manure and has been widely studied by many
researchers (1–5), very few studies have been conducted on the
anaerobic treatment of CM (6). The higher nitrogen content of poultry
waste compared to manure from other farm animals (7) makes CM a
difficult substrate for anaerobic digestion (