100 kg of corn can generally be mixed with 20 kg of bran and 40 kg of soybean meal, but the specific amount needs to be determined according to the user of the feed.
Corn germ meal is a good raw material, and its price is much cheaper than that of corn. The crude protein is about 18%, and the energy is about 3 million calories/kg. However, there are also some shortcomings, such as mycotoxin may exceed the standard, some natural oils of cake powder will produce odor, and the crude fiber is relatively high, reaching 1 1%, so it is also true.
Detection method of soybean meal
Appearance inspection method: High-quality pure soybean meal is irregular chips or powder, light brown to light brown, uniform in color, occasionally caked, and has the smell of baked beans, and should not have the smell of corruption, mildew or coking, raw tofu and bean smell. Most dopants have the common characteristics of fine particles, large specific gravity and low price. If there are dopants in soybean meal, the packaging volume will usually decrease and the weight will increase.
Test method of bulk density: The bulk density of normal pure soybean meal is 594 ~ 610g/L. If the bulk density of the sample exceeds a lot, it means adulteration.
Water immersion method: take a small amount of samples, add appropriate amount of water, stir and let stand for several minutes. The soil makes the water turbid, while minerals such as sandstone sink to the bottom of the water and bran floats on the water.