More than 70% of the nitrogen in the chicken diet is excreted with the feces, so the chicken feces have a great feed value. If chicken manure is directly used as a feed without treatment, not only poor palatability, but also a significant reduction in the utilization of chicken manure, and because chicken manure contains a large amount of pathogenic bacteria, it easily leads to adverse consequences. The author applied multi-enzyme saccharification bacteria in the breeding practice for many years, and used the two-stage fermentation method to produce chicken feces biological feed, which not only saved food but also had significant disease-preventing effect. The production technique is described as follows: After removing the chicken waste from the chicken house, 35% of the chicken manure, 40% of the grass powder (cassava flour, rice bran), 15% of the bran, 10% of the cornmeal, 2 Percentage of salt and 0.5% of the inoculated active multi-enzyme saccharification bacteria are mixed well, so that the moisture content of the mixture is about 65%, that is, the water droplets are squeezed by hand and the fingers are not dripping, and the hand loosening is suitable. The mix is ​​loosely stacked on the concrete floor and covered with sacks or plastic film to keep the material warm. The fermentation temperature was controlled between 28-37°C, aerobically fermented for 12 hours, then turned over and then aerobically fermented for 24 hours. The aerobically fermented raw material is put into the prepared cement pool and the inner layer is practical. The raw material is about 10 cm higher than the pool opening, covered with a plastic film, and covered with fine sand on the film so that it does not leak air or water. After anaerobic fermentation for 10-15 days, a large number of pathogenic bacteria are killed and the chicken manure is converted into nutrient-rich biological feed. The golden color of the prepared feed has the flavor of apple wine, which is rich in nutrition and good in palatability. Animals, poultry and fish all like to eat. In addition, volatile fatty acids and organic acids such as lactic acid produced during anaerobic fermentation can significantly inhibit the reproduction of intestinal bacteria such as Bacillus cereus and improve the disease resistance of livestock, poultry and fish. After two mature chicken manures can be dried naturally or dried in a drying facility and processed into pelleted feed. When feeding with chicken manure, it should be noted that: 1 The nutritive value of chicken manure is high, but the nutrition is not comprehensive, and should not be fed alone, but should be reasonable with other feeds. 2 Chicken manure has a high non-protein nitrogen content, so feeding cattle, sheep and other herbivores, feed utilization rate is higher. After tests, the feed utilization rate of cattle, sheep and rabbits is 40% - 60%, chickens, ducks, geese is 10% - 20%, pigs are 30% - 40%, fish is 30% - 50% . 3 If chicken, feces and fish are used to feed livestock, poultry, fish, and other feed additives such as oxytetracycline, salt, baking soda, and cooked gypsum, the effect is better. China Agricultural Network Editor