Livestock manure contains large amounts of undigested protein, B vitamins, mineral elements, crude fat, and a certain amount of carbohydrates. Such as dry chicken manure is rich in amino acids, the total reached 8.27%, after processing can become a better feed resources. Livestock and poultry excrement not only contains more water, but also contains various bacteria. Only deodorization and dehydration can achieve the purpose of improving the use value and facilitating storage. Now we will introduce the processing and utilization of commonly used livestock and poultry manure as follows. 1 Dry and dry naturally. The fresh livestock and poultry excrement is spread on the concrete floor or plastic cloth, and is turned at any time to allow it to dry naturally, and then pulverized and fed to other feeds. Dry at high temperature. The water content of livestock and poultry manure is about 70%-75%. Conditions can be heated by a high-temperature rapid dryer to reduce its water content to less than 13% in a short period of time. This method is fast and completely sterilized, but the nutrient loss is large and the cost is high. Dry at low temperature. The livestock and poultry manure is transported into a drying plant where mechanical mixing gas evaporates, and is placed in a dryer. The drying is performed at a temperature of 70-500 DEG C. The moisture content is reduced to 13% or less, which is convenient for storage and utilization. 2 silage silage method is the most simple, effective and perfect. As long as there is enough water (40% - 60%) and soluble carbohydrates, livestock manure can be silted together with crop residues, forage, crop straw or other roughage. When silage, the ratio of livestock manure to forage or other feeds is preferably 1:1. The following formulas are available for reference: cow dung 30%, chicken dung 25%-30%, rice bran 5%-15%, clover 15%-20%, bean cake 5%-10%, and glume shell 1.5%-2.0%. If silage soluble carbohydrates are insufficient, add 9%-12% cornmeal or 1%-3% molasses. The digestibility of fiber components can be increased by adding basic substances such as sodium hydroxide, potassium hydroxide, and ammonium hydroxide. Silage can increase the palatability and absorption rate, prevent protein loss, and can also convert some non-protein into protein, so the silage of livestock and poultry manure has higher nutritional value than dry manure. Silage can be effectively sterilized. 3 fermented livestock manure fermentation method, commonly used natural fermentation, accumulation fermentation, plastic bag fermentation and tile tank fermentation. Natural fermentation. Mix fresh chicken manure and wheat bran in a ratio of 3:2 or half of barley, control the moisture to about 50%, seal and ferment in a silo, maintain the temperature above 5°C, open the cellar after 20-40 days . The production of cow dung fermented feed was done with 75% of cow dung without straw grass and 43% of chopped hay, mixed evenly into the feed pond and sealed and fed after fermentation. Stacked fermentation. Fresh chicken manure is first collected, then poured into a cylinder, opened with water and agitated. After sedimentation, the upper layer of impurities and the lower sediment are removed, and the middle layer of pure chicken manure is removed to drain the water. Every 10 kilogram chicken manure add 15-20 grams of yeast tablets, 15-20 pieces of sugar calcium tablets, 5-6 pieces of oxytetracycline, 5-6 hours of accumulation fermentation, if used to feed pigs can be added by 20% of the pig diet . Plastic bag fermentation is to dry the livestock and poultry manure to 70% dry, per 100 kilograms of poultry manure mixed with 10-20 kg of bran or rice bran, mixed and sealed in a non-toxic plastic bag, the temperature is near 60 °C About 1 day in the summer and 2 days in the spring and autumn, the fermentation standards are good enough to smell vinasse. Fermented feces can be mixed with 60% to 75% of other feeds for pigs. For long-term storage, the fermented feces can be dried (moisture < 70%) and bagged. Waken fermentation is to remove livestock and poultry excrement, dried, chopped, add water (moisture in order to squeeze into a group, the finger does not dripping water is appropriate), mixed with green fodder, compacted into the cylinder, the surface layer Sprinkle 2 cm bran or glutinous rice with the cylinder mouth sealed with a plastic film, place it in a cool place (in winter, indoors), keep it at about 20°C, and ferment it for 10-15 days to prepare a sour and palatable feed. 4 Mechanical treatment This method is mainly used for cow dung or pig dung. The collected cow dung is first pumped into the shaker, and the solid and liquid are then separated by pressurization. The solid part has a high content of crude fiber and can be used as roughage by stacking or silage. The crude protein content of the liquid is equivalent to the bean cake and can be used as a protein concentrate for livestock. 5 This method of thermal spray treatment is generally recognized as "popcorn." First, the livestock and poultry excrement sun exposure, so that the moisture content was reduced to 30%, and then into the heat sprayer, the pressure of 8 kg, steam temperature of about 212 °C steamed 3-4 minutes, the pressure increased to 12 kg When it is suddenly sprayed, it is ready for thermal spraying of livestock and poultry manure, which resembles fish meal. It has the characteristics of disinfection, sterilization, deodorization, bulkiness, odor, and good palatability. 6 The appropriate proportion of pigs to use the effect of chicken manure is: 5%-10% of the total ration in the growing period, and 10-20% in the finishing period. There is no obvious effect on the pig's weight gain, but the economic effect is more ideal. Chicken droppings should not be fed to young pigs, and fattening pigs should not feed chickens in the first half of the slaughter period. Chicken droppings have adverse effects on the fat quality of the carcasses. Five-month-old calves were fed with pig manure and started to feed 50 grams a day and feed 2 kilograms at the end. In the 184-day trial, 115 kg of concentrate feed was saved and 24% of feed was saved. The digestibility of dry matter, organic matter and nitrogen of sheep's pig manure was 50%, 51% and 23%, respectively. Some people use pig manure and indwelling to inoculate various strains to make direct feed to the pigs. The dosage is 20%-40% of the diet, which can save 20% of the feed cost. Cow dung feeding effect. Whether it is fresh or dry, it is best to seal the fermentation after mixing with other feeds, so that palatability is better. Fermented cow dung can be added 50% to the cow's diet. The silage of cow dung with wheat straw to feed sheep, or the drying of cow dung or formalin treatment, is very effective. The amount of chickens fed by cow dung is 10%, and its feeding effect is the same as that of the same amount of alfalfa meal. 7 Precautions 1 Feed chicken beef with chicken manure. When the chicken manure accounts for more than 40% of the dry matter of feed, it should be noted that it should be used with energy feed; 2 It is necessary to pay attention to phosphorus supplementation when laying chickens and chicken manure; 3 Sheep to copper It is more sensitive. When chickens are used to feed sheep, the copper content should be determined so that the level of copper in the diet will not exceed the tolerable level. Otherwise, it will cause poisoning. 4 The fiber content of cow dung is high, and cow dung is used to feed pigs. Do not add other high-fiber, low-energy feeds to your chicken. China Agricultural Network Editor