Soybean meal is generally in the shape of irregular fragments, light yellow to light brown in color, and tastes like roasted soybeans. The main components of soybean meal are: protein 40% to 48%, lysine 2.5% to 3.0%, tryptophan 0.6% to 0.7%, and methionine 0.5% to 0.7%.

The crude protein content in soybean cake and soybean meal is as high as 30 to 50%, which is one of the main protein feeds for animals. However, untreated soybean cake and soybean meal contain antitrypsin, uremic enzyme, saponin, Goiter-inducing factors, etc.

will have adverse effects on the digestion and utilization of animals and feed. The operation method of using feed starter to detoxify and ferment rapeseed cake, cottonseed hulls, soybean meal, etc. into feed is as follows:

First, remove the rotten and spoiled raw materials, and separate the cottonseed hulls, rapeseed cake, Soybean meal, etc. should be chopped or crushed. Protein-based feeds such as rapeseed cake, cottonseed shells, and soybean meal should not be fermented separately. Some energy feeds such as corn flour should be added for simultaneous fermentation;

Extended information:

Soybean meal is a by-product obtained after extracting soybean oil from soybeans. Also known as "soybean meal". According to different extraction methods, it can be divided into one-soaked soybean meal and two-soaked soybean meal. Among them, the by-product after extracting soybean oil by leaching method is first-leached soybean meal, and the by-product obtained after first extracting the oil by pressing and then leaching the oil is called second-leached soybean meal.

During the entire processing process, temperature control is extremely important. Too high a temperature will affect the protein content, which is directly related to the quality and use of soybean meal; too low a temperature will increase the moisture content of soybean meal. High moisture content will affect the quality of soybean meal during storage. The production process of soaked soybean meal is relatively advanced and has high protein content. It is the main variety circulating in China's domestic spot market.

Reference materials? Baidu Encyclopedia - Soybean meal