How to judge the moisture of sawdust and other litter?
Because sawdust has finer fineness, high cellulose, hemicellulose content, good water absorption and ventilation, resistance to carbonization and decomposition, and other unique properties, it is a very important litter part of pigs in fermentation beds, and is a kind of bacteria. The indispensable function of the environment, when the strains work, the water generally requires 65% (Goldpox fermentation bed standard), a simple way to determine: grasping the material by hand can be a group, loose hands to spread, the water is too high Too low is unfavorable. That is, when the moisture content of the sawdust is 65%, the strains begin to exert their best function and start to ferment. But how do you judge the moisture content of sawdust and other litter in practice? Here's a representative of the Goldfish fermentation bed, how to judge the moisture according to its structure:
a, sawdust itself water: according to the different sources of sawdust, water is also different, if it is fresh sawdust, such as fir, camphor wood, miscellaneous wood and other processed sawdust, the water content varies greatly depending on the species of the tree, Generally estimated by 60%, if it is the oldest dried sawdust is usually calculated as 30%.
A goldfish fermentation bed 20 square meters, 50 cm thick sawdust, 20m20.5m = 10 square sawdust, 1 square sawdust 190kg count, that is 1900kg, according to dry sawdust 30% water content is 570kg water weight,
b. Excrement water in pigs is also a large part of the excretion of feces every day. The excrement water content is generally about 60%. It can be ignored. The urine is a large part. Each pig is calculated according to the excretion of 4kg per day. A goldfish fermentation bed 20 square meters 15-20 pigs (calculated by 15) is also 60kg of water, which is a large part of the water source, so you can not add water;
c. Other residuals of drinking water, feed residues, sometimes caused by artificial feeding, or rain extravasation, etc. Of course, we must do a good job of sheltering against seepage. This is a very small part and can be ignored.
After a period of time, the required moisture content can be achieved during fermentation, so that the function of the functional microbes can be optimized, and the formerly dormant ones are also active. However, if there is too much water, emergency measures such as venting at the bottom of the hole, clearing the excessively dry litter and drying, adding dry sawdust, etc.
In addition, the surface of fresh sawdust no longer spray water, and even more water is not allowed inside. The old sawdust only sprays a little water (5-10cm) on the surface; the surface of the northern fermentation bed can be slightly sprayed, and the southern surface of the sawdust is not sprayed. Except when it is particularly dry, it is mainly because the north is dry and the air humidity is high; the wet area (climate) is not sprayed, and dry areas can be sprayed.Venlo structure is a popular one at present. This architecture uses horizontal girder as main bearer, forming a stable structure with columns. There is consolidation between horizontal girder and column, and hinge is used to connect column and foundation.
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