What are the corn processing and modulation technologies?
corn processing machinery manufacturers analyze common corn processing and modulation technologies:
1. smash:
The dry treatment method is to crush, grind or crush the air-dried grains to destroy the seed coat, reduce the particle size and increase the surface area of the particles.
China mainly uses powdered corn, but there is no standard for the fineness of crushing. It is generally believed that the more finely crushed corn grains, the higher the digestibility of cattle. In fact, this is a misunderstanding.
The thickness of corn grinding affects the feed intake and production performance of cattle, as well as the utilization rate of corn itself and the cost of dairy cow feeding.
is the same kind of corn. Due to the different feed thickness, the effect of feeding young cattle is quite different. At present, the fineness (diameter) of crushed corn is 2 mm in dairy cattle breeding in China. If it is too fine, the palatability will be reduced, and it will also cause a decrease in feed intake, a decrease in feed utilization, and a decrease in production performance.
2. Steam compression treatment:
The temperature of the steam compression treatment is 100～105℃, the water content is 20%～22%, and the thickness is preferably 0.79～1mm.
After steam compression, the starch contained in corn is gelatinized under the action of high temperature and high pressure, and the corn starch is gelatinized to form dextrin and sugar, which gives corn a fragrant flavor and improves palatability.
The Corn starch gelatinization effect changes the granular structure of starch, and enzymes are more likely to react during the digestion process, and the corn feed conversion rate will increase by 7% to 10%.
The granular structure of starch changes, and the digested part moves to the small intestine, reducing the loss of methane from rumen fermentation and increasing the starch conversion rate by 42%.
Corn starch gelatinization reduces the incidence of rumen acidosis.
