Reasons and solutions for deterioration of silage

Silage is mellow, nutritious, high in digestibility, rich in source, good in palatability, low in price and able to achieve a balanced supply all the year round. Therefore, silage is the main way for farmers to solve the shortage of feed in winter and spring. However, some farmers' silage feed or forage will have different degrees of spoilage, and the reasons and solutions for silage deterioration are as follows: ywP China Feed Industry Information Network - based on feed, serving animal husbandry

First, the phenomenon of thin layer or flaky spoilage ywP China Feed Industry Information Network - based on feed, service animal husbandry

Some silage tanks are opened, and thin layers or spaced flaky molds appear in the cross section. There are several reasons for this phenomenon. ywP China Feed Industry Information Network - based on feed, serving animal husbandry

1. Insufficient filling of raw materials, residual oxygen, prolong the respiration of plant cells, and heat accumulation, resulting in excessive temperature, increased nutrient loss, inhibition of beneficial microbial activities such as lactic acid bacteria, thus reducing the taste and quality of silage. ywP China Feed Industry Information Network - based on feed, serving animal husbandry

2. In the process of making silage, mildew or soiled forage or straw is mixed into it. ywP China Feed Industry Information Network - based on feed, serving animal husbandry

3. The sugar content in silage raw materials is low. ywP China Feed Industry Information Network - based on feed, serving animal husbandry

4. The water content in silage raw materials is not suitable. ywP China Feed Industry Information Network - based on feed, serving animal husbandry

To avoid the above-mentioned mildew and spoilage, there are the following points to be noted: ywP China Feed Industry Information Network - based on feed, serving animal husbandry

1. The quality of silage is also determined by the degree of shredding and compaction of the raw materials. The short cut of the raw materials is to press tightly, to maximize the elimination of air in the crucible, and to create conditions for the fermentation of lactic acid bacteria. The green feed is cut short, and the juice flows out to provide nutrients for the lactic acid bacteria, so as to realize lactic acid fermentation as soon as possible and reduce the loss of raw material nutrients. ywP China Feed Industry Information Network - based on feed, serving animal husbandry

2. It is forbidden to mold the forage straw and bring the soil forage straw into the silo. ywP China Feed Industry Information Network - based on feed, serving animal husbandry

3, adjust the sugar content of the raw material, that is, the content of water-soluble carbohydrates, first, reduce the water content of the raw materials, so that the relative concentration of sugar content is increased; second, directly add a certain amount of molasses; third, mix with the high sugar content of the feed Silage. ywP China Feed Industry Information Network - based on feed, serving animal husbandry

4. In the process of filling silage, the moisture content of the raw material should be adjusted first, the water content is too high, the acidity of the prepared silage is large, and it is easy to deteriorate and rot after opening; the water content is too low, the raw material is too dry and not easy to be pressed. Easy to mold. High quality silage generally requires a moisture content of 60% to 75%. ywP China Feed Industry Information Network - based on feed, serving animal husbandry

Second, silage 窖 four corners, four sides or domes corruption phenomenon ywP China feed industry information network - based on feed, service animal husbandry

The reason for this mildew is caused by the space between the plastic film and the forage after the four corners of the crucible, the four sides are not compacted or sealed. To avoid this phenomenon, in the filling process, all directions of the crucible should be compacted, and a certain amount of salt should be sprinkled on the forage interface before sealing, or it can be sealed and compacted with soil on the plastic film. ywP China Feed Industry Information Network - based on feed, serving animal husbandry

Third, the problem of silage deterioration after opening ywP China feed industry information network - based on feed, service animal husbandry

The cause of this phenomenon is caused by "secondary fermentation". "Secondary fermentation" refers to a silage that has been fermented by lactic acid and causes fermentation after the opening due to environmental changes. The normally preserved silage can be kept intact for a long time by relying on anaerobic conditions and a special environment after lactic acid fermentation. Once opened, breaking the anaerobic conditions, the silage exposed to the air will heat up and deteriorate. ywP China Feed Industry Information Network - based on feed, serving animal husbandry

Prevent the occurrence of “secondary fermentation”: control the water content of raw materials before silage, and dry the raw materials with high moisture to evaporate water as soon as possible to reach a water content of 60% to 70%. After this processing, the silage is opened. Less secondary fermentation or less light; after layering, the layer thickness of the exposed surface layer is more than 30 cm. The surface after excavation should be neat, not to be dug, to prevent a large amount of air from entering the crucible; Silage additives such as Lubaomei, propionic acid, sorbic acid, urea, etc. These additives produce a bacteriostatic effect after silage is opened, reduce re-fermentation, and prevent silage nutrient and dry matter loss. ywP China Feed Industry Information Network - based on feed, serving animal husbandry

ywP China Feed Industry Information Network - based on feed, serving animal husbandry