Due to the scale of the cattle farms, the way of making corn silage varies greatly. In order to better the fermentation effect, the use of the Kinpo feed starter. The silage fermented by Gumba silage starter is an excellent feed for all kinds of livestock. After fermentation, the feed will only lose about 10% of its original nutrient, which is 30-40% higher than the nutrients contained in the hay. Vitamins, while containing a large amount of various calcium, phosphorus and minerals, so it is also a relatively complete nutritional value of feed in the winter and spring. For small-scale cattle farms, it may be more practical to use bagged silage and piling silage, because this method can ensure rapid storage and ease of use. For large-scale pastures, the use of silage storage is more, and the corn silage production mentioned here is aimed at large-scale pastures.
I. Grasp the best harvest time and reduce nutrient losses
The so-called best corn silage harvesting period refers to the appropriate moisture and sugar, that is, corn reaches the waxing stage. It is generally believed that the optimum moisture content for lactic acid bacteria breeding is 65-75%. For crude hard silage material (cut without crushing), the moisture content can be as high as 78%. If it is a soft silage material (squash + cut), the moisture content needs to be lower, can be as low as 62%. At present, we can control the dry matter content at more than 25%. I think it is already good. If the silage water content is too high, there will be a large amount of nutrients in the compaction process as the water loss, resulting in a lot of waste, and then the silage PH high, sour and pungent pungent. In view of this situation, a certain amount of wheat straw, corn stover, dried alfalfa, dried apple pomace, and bran can be added during the silage process to increase the dry matter content of silage materials, reduce nutrient loss, and increase silage lactic acid scent. The specific amount of addition was calculated based on the dry matter content of the whole plant corn when silage was made.
Second, grasp the cutting length, conducive to silage compaction
The cut length of whole plant corn should be appropriate. When it is too long, it will not be easily compacted. Excessive air will affect the anaerobic fermentation of silage and affect the quality of silage. If it is too short, it will affect the ruminal health of dairy cows, resulting in a decline in milk fat percentage. , The incidence of true gastric metastases increases. The cutting length of whole-plant silage corn in many foreign countries is 0.9-1.4 cm. However, in China, the cutting length is uneven due to many factors such as harvesting machinery. It is recommended not to cut more than 2 cm in length.
3. Fill and compact cellar as soon as possible to shorten aerobic fermentation time
Once the corn is harvested, it can be harvested and trimmed while trimming it. The compaction can be carried out on a small scale. If it is a large silo, it can be mechanically compacted. If the overlay tractor and the large forklift are selected one, I choose the larger forklift. The gaps in the packing are continuously compacted, with particular attention to the corners without any gaps and compaction of the layers. After the silage material is full, the cellar top should be at least 20 cm above the cellar to ensure that it does not leak or seep into the water after it sinks. After the silage material is filled and compacted, the cellar is sealed as soon as possible, the sooner the better, preferably no more than one week. However, many cattle farms in China are buying corn from neighboring farmers. When the silo is relatively large, it is difficult to seal the pits in a short time. In order to prevent the silage on the surface of the silo, we can sprinkle some salt properly to play a role in anti-corrosion. When sealing the pit, we must completely seal it. Sealed with plastic film, and then cover about 20 ~ 50cm or around the soil with a compaction in the middle of the tire, to prevent the wind blow the plastic film blowing. The cellar should be observed at any time after 2 to 3 days, and it is found that the seal is not sealed in a timely manner. Sometimes it is possible that the plastic film in a small place is broken, which affects the quality of the silage. Therefore, if a layer of plastic film is not enough, you can Cover a layer. In general, the cellar can be opened for more than 40 days.
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