First, the chemical method?
0.5 to 7% of dry matter weight of chicken manure was added to formalin (containing about 37% of formaldehyde for treatment, and placing it for 1-3 hours for capping. 5% of molasses must be added when feeding.) Together with the appropriate amount of concentrate, it feeds cattle and sheep together with forage grass. In addition, the chemical reagents used are sodium hydroxide, propionic acid, acetic acid, phosphoric acid, and potassium dihydrogen phosphate. For deodorization, a certain amount of sulfuric acid is often used. Iron treats fresh chicken manure.
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Second, silage law?
Use fresh chicken manure 50-65%, chopped green corn stalks, grasses, 25% of root and tuber feeds, and 10% bran, mixed with about 60% water (without water) and then add silage. In the pool or cellar, 30-45 days after solid sealing, it can be used for feeding cattle, sheep and pigs. ?
Third, fermentation method?
1. Fermentation. Mix the chicken manure with other feeds in a certain proportion, ie fresh manure 35%, rice bran or straw powder 35%; chopped green feed 30% mix, spray water to make the water up to about 60%, into the cylinder or brick In the built-in pool, step on practical plastic sheet and seal it tightly. After fermentation for about 5 days, the chicken manure can turn green and yellow and have distiller's grains to feed. Summer time can be shortened. ?
2. Distillers' grains ferment. Add appropriate amount of bran in fresh chicken manure, then add 10% of distillers grains and 10% of water, mix well, ferment in fermentation tank or tank for 10-20 hours, and sterilize with steam at 100 degrees Celsius to feed. . ?
3. Mechanical fermentation. China developed 9FJ-500IA chicken manure regeneration feed fermenter, the temperature can be adjusted according to need, 3-4 hours up to the purpose of fermentation. Fermented chicken droppings are yellow-brown, loose, slightly sour and sweet, suitable for small and medium-sized chicken farms or feed mill applications. ?
Fourth, dry method?
1. Rapid drying at high temperature. Fresh chicken manure is heated in a non-stop dehydration dryer; at 500-550 degrees Celsius, moisture can be reduced to below 13% in a short period of time. This type of drying device mainly includes a heat generator, a combustion chamber, a drying cylinder, a cyclone separator, an automatic controller, and the like, and no such equipment has been developed in the country. ?
2. Mechanical drying. Drying is performed using a drying machine, which is mostly heated by a power source. The temperature is 70 hours at 70 degrees Celsius; 1 hour at 140 degrees Celsius, and 30 minutes at 180 degrees Celsius. The above three methods require certain equipment conditions and are suitable for large-scale intensive farms or feed processing plants. ?
4. Natural dry process. This method is suitable for the majority of farmers. In the chicken manure evenly mixed with rice bran or wheat bran (20-30%), exposed to the sun, dried and sieved to remove impurities, into the bag or piled in a dry place for use, feeding can be added in accordance with the aforementioned ratio of five ,. Expanding method?
Also known as the thermal spray method, the fresh chicken manure is first dried to a moisture content of 30% or less, and then put into a closed puffed (hot spray) equipment, heated to about 200 degrees Celsius, and the pressure is 8-15kg per square meter; after 3-4 In minutes, the chicken manure is quickly sprayed, and its volume can be increased by about 30% compared to the original. This method has a very good treatment effect, bulky palatability, rich aroma, organic matter digestibility can be increased by 10%. ?
As for the problems of large amounts of minerals, low energy, large amounts of non-protein nitrogen in crude protein, and some residual drugs in chicken manure, it can be solved by reasonable mix of feeds.
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