Drying method Naturally dry the fresh chicken manure to remove impurities, spread on the concrete floor or mat, dried, sterilized and deodorized by sunlight. When the moisture drops below 10%, the bag is crushed and stored. Heating and drying fresh chicken manure can be heated at 70 ° C, 12 h, 140 ° C, lh or 180 ° C, 30 min; or add 30% industrial ferrous sulfate in fresh chicken manure and mix well, then placed at 120 ° C ~ 160 ° C Dry to reduce moisture to 10%. The solar greenhouse is mechanically dried. The chicken manure is placed in a concrete shed or a concrete shed in a glass greenhouse, and the chicken manure is dried by using solar energy and agitating and dehumidifying. High-temperature rapid drying The chicken manure is treated by a high-temperature rapid dryer, and the water content is reduced to 13% or less at a high temperature of 500 ° C to 550 ° C, and the nutrient composition of the chicken manure can be sufficiently preserved. Microwave drying The fresh chicken manure is pre-dried to a moisture content of less than 40%, initially pulverized, and then transported to a microwave heater, utilizing the thermal effect of the ultra-high frequency electric field of the microwave source and the special function of the biological effect, comprehensively achieving rapid drying, maintaining nutrition, killing Insect, sterilization and deodorization purposes. Fermentation method Natural anaerobic fermentation The fresh chicken manure after removing the impurities is placed in a sealed plastic bag or cement pool to leave a gas permeable hole to allow the exhaust gas to escape and maintain the moisture content of 32% - 38%; controlling the fermentation time varies with the season. In the spring and autumn, 3 months, 4 months in winter, and 1 month in summer, when the internal temperature of the fermentation is equal to the outside temperature, the fermentation stops. Oxygenation fermentation The fermented chicken manure (about 1 ° C, moisture content of 45% or less) with sufficient air, so that aerobic bacteria (such as yeast, lactic acid bacteria) rapidly multiply. Through bacterial growth and temperature action, the fermented material decomposes harmful gases such as hydrogen sulfide, which increases the effective amino acid and increases the acidity. After stirring, the odor gas is released, and then dried into a powdery feed. Alcohol fermentation Add appropriate amount of soft candy, 10% alcohol and 10% water in fresh chicken manure, mix well and ferment in fermentation tank for 10-20h, then steam sterilization at 100 °C; also add 20 in chicken manure %~25% of fresh beer grains, mixed well and then buried in the cement for 1 week to obtain a wine-flavored product. 4. The mixture is fermented in a rectangular concrete floor. Proportion (34.2% chicken manure, 34.2% grass powder, 28.6% green feed, 3% bran mixed, 25 kg water per 50 kg mix, 0.4% salt) Feed, the water content of the hand is held by hand, indicating that the water droplets are still not satisfied. The height of the pool is 15-20 cm in summer (24h for feeding), 20-30cm in spring and autumn (2-3d for feeding), and 30-50cm in winter (5-7d can be used for feeding). Silage fermentation The fresh chicken manure is treated to a water content of about 60%, and the impurities are removed, and 50% of the chicken manure, 30% of the green feed, 20% of the bran, and a small amount of salt are added to the silage or the sputum. It can be used after 30~45d. Yu Shuqin (1988) made corn stalks after harvesting ears and 10%, 15%, 20% and 25% fresh chicken manure into 4 kinds of chicken manure and corn stalk silage. Among the silages with 10% chicken manure, except for the darker color, the sensory indexes such as smell, sourness and structure are not different from those of corn stover silage. Chemical method Propionic acid, acetic acid treatment In the fresh chicken manure, according to 0.25% of the dry manure, 0.5% respectively, add 80% of propionic acid and 20% of acetic acid, stir well, and then dry, and have the characteristics of ripening, flavor and palatable. Ferrous sulfate treatment 100 parts by weight of fresh chicken manure, 7 parts of ferrous sulfate (FeS-04.7H2O) and 3.5 parts of coal ash or fine zeolite powder are mixed with each other and dried to become fish and livestock. Odorless feed. Puffing treatment The wet chicken manure is pretreated with deodorization and dehydration first. When the water content is below 25%, the glutinous rice, wheat bran and other tempering are added, and then sent to a puffing machine for puffing treatment, which serves the purpose of sterilization, ripening, puffing, etc. . Thermal spray The chicken manure is pre-dried to a water content of less than 30%, and then placed in a thermal spray machine to subject the material to a short time of high temperature and high pressure treatment, and then discharged. The chicken feces and the keratinous proteins such as feathers, feathers and dander in the process of puffing, disintegration and degradation during the hot spray process improve the palatability, digestibility and nutritional effects of the material, and at the same time of puffing It can achieve further deodorization, sterilization, dehydration and other effects, and improve the feed value of chicken manure, making it a "non-toxic" feed containing high protein and a large amount of mineral elements. Studies have shown that feed sources with hot-sprayed chicken manure can replace fishmeal. Feeding effect after feed of chicken manure Chicken manure feed for pigs, chicken After 50% chicken manure instead of grain and alcohol, the pigs were fed with pigs. Compared with the conventional compound feed, the daily gain was increased by 2.66%, and the weight gain of 1kg was 2.71kg. He Jian and others added 15%-25% of hot-spray chicken manure to the finishing pig diet, which can replace part of the fish meal and grain, saving the feed cost by 16%~40%, and can significantly increase the daily weight gain. When Yu Zhisong and his diet used 20% chicken manure fermented feed instead of the basic diet to feed the pigs, the daily gain was 635g, which was not significantly different from the control group. From the feed consumption and economic benefits, the feed was analyzed. The meat ratio and the cost per 1 kg of weight gain were 2.7:1 and 4.32 yuan, respectively, while the control group was 3.4:1 and 544 yuan. The test group was reduced by 1.12 yuan per 1 kg of weight gain compared with the control group. The experimental study showed that when the 20-60kg stage pigs were fed with 10%-30% chicken manure in the diet, the daily weight gain was 450g, which was 7. l%, while feeding 60-90kg of finishing pigs with 20%-50% chicken manure feed, the average daily gain is 570g, which is 9.4% higher than the control group, and can increase the protein content of pork by 10%. -17%, fat content decreased by 40% to 82%. When slaughtered after 20 days of feeding chicken manure feed, the meat quality was normal, and various physiological and biochemical indicators were significantly improved. Studies have shown that when fertilized chicken manure is fed to fattening pigs, the live weight can reach 85kg in 6 months, and the ratio of meat to meat is 2:1, which is very effective. Chicken manure was fertilized with distiller's grains and fed to fattening pigs. Its palatability, daily weight gain and economic benefit were better than those of direct feeding chicken dung, but the difference between the whole day weight gain test group and the control group was not significant. In the feed of laying hens and reserve breeders, the amount of chicken manure feed can be 20%. After the peak of the laying hens, the egg laying rate will drop to 85%, and 2% chicken manure feed can be started. Later, the egg production rate will gradually decrease to 55%, and the amount of chicken manure feed will reach 25%. There is no significant effect on the average egg production and egg production rate, and the feeding effect is better. Chicken manure feed cattle, sheep Lbehidz reported that chicken manure can be used instead of many raw materials as a source of nitrogen. Buld and Reid also pointed out that about 50% of the nitrogen in dried chicken manure comes from NPN, and the CP has a digestibility of 70%. The digestive energy value of the ruminant used is 8.4MJ/KJ. Louise Naluguwa added 0-30% of broiler manure to the concentrate for 50 days after lactation, and had no effect on milk production and milk composition. In China, Yu Boliang replaced the corn-soybean-type cow concentrate with 25%-50% of fermented chicken manure, and its milk production and milk fat were increased to different extents. Feeding EM fermented chicken manure instead of 50% cow concentrate The effect is that the average milk yield is increased by 5.6%, and the milk produced has no odor. In addition, Ma Yusheng and other experimental studies have shown that when 20% of chicken manure feed is used instead of mixed concentrate to feed cows, the milk yield of cows is higher than that of the control group, and the difference is not significant, but the milk fat percentage Improve, and the difference is significant. Li Qingwang and other studies have shown that in the fattening of beef cattle, 65% fermented chicken manure is used instead of mixed concentrate, and when ammoniated wheat straw is used to feed about 150kg of shelf cattle, after 120d fattening, the weight gain can reach 1200g. When it reaches about 350kg, it can be slaughtered. The research and development team of the feed resources is very suitable for feeding the Xiongnongshaen dairy goats with pellets containing 10%, 20% and 30% dry chicken manure. After 70 days of testing, feeding the dairy goats without chicken manure In comparison, the average daily milk yield and daily gain per sheep were not significantly different between the groups (P>0.05). It was also found that with the increase of the proportion of chicken manure in the diet, the feed consumption did not change much, but the feed cost was significantly reduced. When the chicken manure content in the feed was 30%, the cost per 1 kg of milk feed could be reduced by 14.82%. The price of the material dropped by 23.08%. In addition, AA. Qureshi used chicken manure for sheep diets, reducing the relative cost of raising sheep by 38.95%. Chicken manure feed fish culture Shen Guohua et al. used the compound feed containing 30% chicken manure to carry out grass and carp insemination and high-yield tests. Compared with all commercial feeds, the food can be 22.2% of the graded commodity feed, and the stocking rate increased by 20% compared with conventional feeding. %, the specifications of commercial fish do not fall. Wang Jiqiao and other carp and tilapia are fed with 30%, 45%, 60%, 75% and 90% compound feed containing chicken manure, and compared with basal feed containing 60% bean cake, 30% bran and 10% fish meal. The results showed that the preparation of feed with 30% to 60% chicken manure was better, and the relative growth rate (2.18%) and the feed coefficient (2.58) were better than those of the basic feed group (1.28%) and (2.67-3.17). . Hu Guohong et al [1994] raised cockroaches with caged pellets containing 25% chicken manure. The net yield (10.5kg/m3) was 31.25% higher than that of the control group (8kg/m3). The feed coefficient (2.04) was better than the control. Group (2.67) was 23.6% lower. Zhu Haiyuan and others used the hot-spray chicken manure compound feed as the main feed source cage to raise the feed cost, which reduced the feed cost by 28.7%. According to Shen Yizhang, the Department of Fisheries and Wildlife of the University of Michigan in the United States added 30% dry chicken manure to the cockroach feed. After 5 months, the average weight gain was 2.7 times. In the chicken manure feeding goldfish test, after 5 In the month, the weight gain of the goldfish in the experimental group was more than 9% in the control group; the sealing farm in Jiading County, Shanghai, and the Harbin Aquatic Products Research Institute used the chicken manure compound feed for fish farming experiments, and all of them achieved satisfactory results. In summary, since the crude protein and amino acid content of chicken manure is not worse than many common feeds other than legumes, it has certain nutritional value and feed value, and can be used as an animal, especially ruminant supplement diet protein. Feed, however, the following problems still exist in chicken manure feedstock; the safety of chicken manure feedstock; the authoritative basic data that can be referenced when chicken manure is fed, such as data on digestible amino acid content; Improvement of related processes and equipment for chicken manure feed. It can be expected that chicken manure feedstock will certainly contribute to solving the protein feed crisis, reducing environmental pollution, improving resource utilization, and increasing the economic benefits of enterprises in this large chicken country. 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