Method for improving quality of high-moisture alfalfa silage

Abstract

The invention relates to a method for improving the quality of high-moisture alfalfa silage. The method comprises the steps that harvested fresh alfalfa and sweet wormwood herb are air-dried and chopped to be 2 cm to 3 cm, 40%-90% by weight of the chopped alfalfa and 10%-40% by weight of chopped sweet wormwood herb are mixed, and then chitin accounting for 0.5%-1% of the weight of the silage raw material is scattered; the mixed alfalfa and sweet wormwood herb are compacted and sealed for silage fermentation. Due to the fact that sweet wormwood herb contains natural active antimicrobial ingredients, it is guaranteed that at the early stage of alfalfa silage fermentation, the quality of the silage raw material is not destroyed by harmful microbes and lost, and the buffer capacity of the mixture can be effectively reduced to enable the mixed silage to be prepared successfully; by means of one of chitin decomposition products, namely, chitosan, the soluble sugar content of the mixed silage is increased, the pH value of the silage is decreased, and the silage process is promoted; meanwhile, decomposition of the chitin is promoted, and the quality of the mixed silage is improved.

Description

technical field [0001] The invention relates to the technical field of silage processing, in particular to a method for improving the quality of high-moisture alfalfa silage. Background technique [0002] Alfalfa is the king of grass, but because of the low quality of alfalfa silage, it is often used to dry into alfalfa hay for storage and sales. The main producing areas of alfalfa in my country are Gansu and Ningxia. With the development of dairy farming in my country, alfalfa has begun to be planted in most areas of my country. However, in southern China, alfalfa is harvested just in the rainy season, and alfalfa cannot be dried after harvesting. In order to prevent the loss caused by stacking and rotting, it is necessary to introduce forage dryers for drying treatment, which not only consumes energy but also manpower, and the cost is often calculated to be lower than that of imported alfalfa hay. For southern China, the best way to store alfalfa is to make silage. However...

AI Technical Summary

Problems solved by technology

The main producing areas of alfalfa in my country are Gansu and Ningxia. With the development of dairy farming in my country, alfalfa has begun to be planted in most areas of my country. However, in southern China, alfalfa is harvested just in the rainy season, and alfalfa cannot be dried after harvesting. In order to prevent the loss caused by stacking and rotting, it is necessary to introduce pasture dryers for drying treatment, which not only consumes energy but also manpower, and the cost is often calculated to be lower than that of imported alfalfa hay

For southern China, the best way to store alfalfa is to make silage, but due to the high water content (70-80%) of fresh alfalfa, low soluble sugar content, and slow natural fermentation process, it is not easy to make silage alone

In the market, half-dry silage is usually made by sun-drying or drying alfalfa until half-dry, or adding special silage additives to promote the process of alfalfa silage and improve the quality of silage. There is no rain, and the moisture content in the air is relatively high. There is no chance to dry the alfalfa in the sun, and the effect of additives is unstable. Therefore, how to produce high-quality silage from the alfalfa harvested in the southern rainy season is still a problem

[0003] Artemisia annua is the above-ground part of the annual or biennial herbaceous plant Artemisia annua or Artemisia annua, which is a common wild plant all over the country. It grows rapidly and has a high yield. It can be harvested almost all year round in the south. Artemisia annua is a kind of Chinese herbal medicine. Biologically active substances such as monoterpenes, triterpenes, sesquiterpenes, flavonoids, coumarins, and phenols contained in Artemisia annua have bactericidal, anti-inflammatory, and anti-tumor effects, and Artemisia plants contain a lot of oil High, it has a good nutritional effect on ruminants, but due to its special medicinal taste, cattle, sheep, horses, pigs and poultry are mostly not liked to eat, so only a small amount is added to livestock and poultry feed as a Chinese herbal medicine additive