Year1
- 包装规格：
- 25kg/包
Introduction to Feed Additives
Bentonite is a feed additive material with a long history. Both bentonite and montmorillonite are listed in the "Feed Raw Materials Catalog" issued by the Ministry of Agriculture.
Bentonite was initially used as a mineral binder material in feed to make the feed particles uniform and not easy to harden after storage. Later, it was found that the coat color, growth performance and other indicators of livestock and poultry fed bentonite were significantly improved. With the deepening of research, it was discovered that bentonite has obvious effects on improving the gastrointestinal environment of animals and preventing and treating diarrhea. Bentonite is gradually recognized as an animal gastrointestinal health additive.
With the in-depth research on the pathogenic mechanisms of livestock and poultry by foreign livestock breeding institutions, mycotoxins have slowly appeared in the public eye. A large number of studies have shown that the root cause of lesions in livestock and poultry is the accumulation of toxins produced by molds in feeds in the bodies of livestock and poultry, leading to lesions. Foreign studies have systematically named and classified the toxins produced by molds and analyzed the chemical structures and pathogenic mechanisms of mycotoxins. Studies have shown that the toxins that have the greatest impact on livestock and poultry are aflatoxin, zearalenone, DON, ergotoxin, and ochratoxin. Mycotoxins are commonly found in feed and are difficult to remove through heating processes.
One of the effective methods for removing mycotoxins from livestock and poultry is adsorption. The toxins produced by mold are adsorbed on the carrier and cannot be absorbed by objects, thereby reducing the harm of toxins to livestock and poultry.
Bentonite is an efficient mycotoxin adsorbent, especially for aflatoxin. Aflatoxin has a relatively small molecular weight and a certain polarity, and can be firmly adsorbed between the bentonite layers through ion exchange and is not easily desorbed.
The main component in bentonite that exerts the adsorption function is montmorillonite. The associated minerals mainly include quartz, calcite, mica, dolomite, etc. Bentonite can be used to obtain higher purity montmorillonite products through a purification process. Thereby greatly improving its adsorption capacity and adsorption efficiency for mycotoxins.
Montmorillonite is a lamellar aluminum-magnesium silicate mineral. It consists of two layers of silicon-oxygen tetrahedrons and one layer of aluminum-oxygen octahedrons. The thickness of a single layer is only negative charge on the end surface of the layer and variable charge on the cross-section surface. The lamellae are stacked to form montmorillonite particles whose theoretical specific surface area can reach /.
The surface of montmorillonite has been treated with special processes to improve its surface properties, which can have good adsorption properties for sesquiterpene mycotoxins such as zearalenone.
After special pore expansion and volume expansion treatment, montmorillonite increases its lamellar void size and porosity, which can significantly improve its adsorption performance for highly water-soluble mycotoxins such as vomitoxin.
At present, the main pollution types of domestic livestock and poultry
Porcine DON and zeerythenone
Cattle (cows) aflatoxin, DON, zearalenone
Poultry DON yellow Aspergillus
Aquatic aflatoxin
Mycotoxin type
Applicable product brands
Aflatoxin
Zeerythenone
DON
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