Recently to do silage, before reading an article, said that adding the right amount of urea in silage can increase the protein content of silage, cost-effective.
urea
So I specifically studied this matter, and there are studies that show that corn stalks and other silages contain higher calories, but the protein content is lower, and only contains 2.3% crude protein in terms of wet weight. However, if 5 kg of urea is added to each ton of silage corn stalks when doing silage, the crude protein of the silage corn stalks can be increased by 1.4%, which can reach 3.7%.
Research papers
People who have had breeding experience may know that some farmers will feed their cattle and sheep a little urea every day, so that the cattle will grow faster, in fact, the principle is that after the urea is dissolved in the stomach of the cow, it will produce a chemical reaction, and the digestion of microorganisms in the rumen of cattle, sheep and so on can replace part of the protein feed, which is the protein supplement feed for cattle. That is to say, after the urea is broken down, it will be absorbed and utilized by microorganisms in the rumen, and finally protein is produced, and the protein will be absorbed and utilized by animals.
The microorganisms in the rumen of animals originally need these things, do not add urea, eat into the forage fermentation will also produce some urea decomposition, after adding the utilization rate is improved, so the final production of protein is more.
However, the practice of adding urea directly to the feed of cattle or sheep is risky, and people in rural areas must know that urea is very easy to dissolve, and remember when I was a child, when I was a child, I was taking advantage of the rain to directly sprinkle urea into the ground. If the cow is fed urea, and the cow drinks water, the urea will dissolve immediately, and release carbon dioxide and ammonia, ammonia is harmful, will lead to acidosis, and if it is not good, it will cause serious losses. Therefore, although the effect is good, it cannot grasp the time and quantity, which can easily cause acidosis and not pay off.
My silage pool is under construction
Therefore, the best way is to add urea to the silage, so that urea is converted into protein directly before it enters the mouth of the cow and sheep, so that there is no risk, and the effect is definitely much better than direct feeding.
The foundation is just ready
How does it work?
Before the silage begins, the urea is first prepared into a 25% solution (that is, 100 kg of water is added to 25 kg of urea), stored in a container, and when silage, the corn stalks are shredded and the urea liquid is sprayed on the surface of the corn stalks with a miniature sprayer. Spray 20 kg of 25% urea solution per ton of silage corn stalks. While spraying, while loading the cellar, spraying should be even.
silage