Ammonia smell heavy solution in fermentation bed

The ammonia odor solution in the fermentation bed Recently, many friends called me or consulted me through QQ. Why my ammonia smell in several fermentation beds is heavy, I first heard their description of the situation and summarized them as follows:
1. The more concentrated ammonia smell in the fermentation bed is the new fermentation bed, which is basically within 3 months.
2, the general ammonia odor of the fermentation bed mat dry.
3, the ammonia odor is generally raised piglets.
4. Ventilation is not good in the pens. Usually only simple windows or even windows are closed.

Knowing the above conditions, the reason for the rich ammonia smell in these fermentation beds is obvious. First, we must understand the source and mechanism of ammonia production. The sources of ammonia in livestock houses are mainly divided into the following two types: one is the ammonia in the gastrointestinal tract, which is derived from excreta, digestive matter in the stomach, etc. The urine nitrogen is mainly in the form of urea and is easily hydrolyzed by urease. Catalysis Generate ammonia gas and carbon dioxide (every time the animal excretes feces, everyone can smell the pungent smell of ammonia is this reason). Fecal nitrogen is mainly in the form of organic matter and is not easily decomposed, but it is also an important and stable source of nitrogen in the ammonia formation process. The other is environmental ammonia, which is produced by the decomposition of organic matter such as accumulated excrement, feed residue, and bedding. In the case of moist litter, suitable pH and high temperature, a lot of manure and considerable air, ammonia production is faster. The concentration and content of ammonia in livestock houses depend on the temperature, stocking density, ventilation, ground structure, feeding and management level, and excrement removal. Livestock and poultry manure contains a large amount of nutrients that are not digested and absorbed by the body. Some of them are proteins, amino acids, and microbial nitrogen. These substances are quickly decomposed into ammonia and emitted by various microorganisms (mainly anaerobic). In the air. Since ammonia is highly soluble in water, the concentration of ammonia in high humidity air is relatively high. It has been determined that 50 to 80 kg of pigs discharge 6 kg of excreta per day and 16 to 37 g of nitrogen, of which about 60% are urea or amine salts that are easily converted to NH3.
Knowing the mechanism of ammonia production and the nature of ammonia, it is not difficult to explain why the ammonia smell is thick in the above four cases.
1. The bacterial structure in the newly-built fermentation bed has not reached the dynamic balance of the flora for the time being, and the utilization of nitrogen is not very complete.
2, ammonia is easily soluble in water, 1 litre of water can be dissolved 500L water, slightly dry fermentation bed water content is less, can not dissolve the excess ammonia, once released, so can smell.
3, piglets breeding density is small, excretion is small, litter moisture is low, but also can not dissolve excessive ammonia.
4, the ventilation in the housing is not good, oxygen content is small, the fermentation bed bacteria species lack of oxygen, can not complete the process of ammonia immobilized into bacterial protein, can only accumulate, the final ammonia in the water to reach Saturated and released.
In general, the above four factors lead to a strong ammonia odor in the fermentation bed housing. Then we should take appropriate measures in response to these four situations.
1. Take suitable fermentation bed strains, and the bacterial structure is relatively balanced, and no rustiness will occur.
2, for its dry fermentation bed (when the pig running or moving around if the dust), you can spray a small amount of water, both to supplement the fermentation required water, there is to dissolve excess ammonia.
3, the breeding density of piglets can be appropriately increased, such as increased to 1 square meter per head.
4. Increase ventilation ventilation of the house to ensure that all four windows are complete. That is, skylights, windows, windows, and induced draft fan windows.

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