Wheat straw aminated feed production technology

Every year after the wheat is harvested, a large amount of straw is produced. After the straw is aminated, it can be used to feed cattle and sheep. The widely used methods are: stacking method, pit (pool) method, amination tank method, and ammoniating bag method. Here mainly introduces the latter two ammoniation methods.

1. Ammonia tank ammonification method of its specific approach is: (1) selected sunny, lee, high ground, hard soil, low groundwater level and easy to make, feeding, management of the local ammonia pool construction. The shape of the pool may be rectangular or circular. The size and capacity of the pool are based on the amount of ammoniated straw, and the amount of ammoniated straw is determined by the type and amount of livestock. In general, about 100 kg of dry chopped straw can be placed per cubic meter of the pool. A cow with a body weight of 200 kg needs 1.5 to 2.0 tons of ammoniated straw annually. After digging the pool, use bricks or stones to cover the bottom, build walls, and cement the surface. (2) Crush or cut the straw into small pieces of 1.5 to 2.0 cm. (3) 3% to 5% of the urea solution is formulated with warm water, depending on the amount of warm water depending on the moisture content of the straw, straw generally has a water content of 12%, plus 30 kg of solution per 100 kg of straw. (4) The urea solution should be evenly sprinkled on the straw, while stirring while sprinkling, or a layer of straw evenly sprinkled once urea solution, while loading and pressing. (5) After filling, cover the mouth of the pool with plastic film and cover it with soil.

2. Ammoniad plastic bags for plastic bags are generally 2.5 meters long and 1.5 meters wide. The requirements for plastic bags are non-toxic polyethylene films, and the thickness is more than 0.12 mm. It is best to use double-layer plastic bags. The cut straw is uniformly sprayed with a prepared urea aqueous solution (equivalent to 4% to 5% of urea in air-dried straw dissolved in clean water equivalent to 40% to 50% of straw quality), filled with plastic bags, and sealed. Bag mouth, placed in a sunny place. During storage, it should be checked frequently. If you smell the ammonia smell at the mouth of the bag, you should re-tighten it and find that the plastic bag is damaged. Seal it with tape in time.

After ammoniating of straw for a certain period of time, it can be used for feeding. The length of ammoniation depends on the temperature. The temperature is 20 ~ 30 °C, takes 7 ~ 14 days, the temperature is higher than 30 °C, only 5 ~ 7 days. Ammoniated straws are quality-checked before they are fed to livestock. In general, the aminated straw should be apricot-yellow, with a scent and a pungent ammonia smell. If the ammoniated straw is found to be mostly mouldy, it cannot be used for feeding livestock.

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