Fertilizing Value of the Slurry : The chemical tests of the slurry showed that the concentration of
Potassium was increased. The concentration of Phosphorus and Nitrogen were decreased. The
percentage of N in the raw poultry waste was 2.01. It decreased gradually to 2.00 during the first two
weeks of fermentation and then to an average of 1.79 percent finally. The P content of the raw
material was reported to be 6.66 percent. It was decreased to 4.37 percent after two weeks’ digestion
and finally 5.85 percent was recorded as the average value. As for K, it increased from 3.45 percent to
4.15 percent after two weeks’ digestion process with final average value of 5.51 percent.