Abstract:Protein feed are produced from the mixtures of chicken manure and wheat bran with the aspergillus oryzae and geotrichum candidum by solid state fermentation., at the same time, nitrogen source (urea) was added to the culture in the course of the fermentation.The contents of protein and amino nitrogen in the chicken manure feed reach 20.70% and 19.74% and the amino nitrogen in culture change from 56.89% to 95.36%. The feed is very tasty and can replace partial formula feed. The result of feeding pig showed that the average daily gain is increased by 10.83% compared with the control group.