Coated submicron feed-grade zinc oxide and preparation method thereof

Abstract

The invention provides coated submicron feed-grade zinc oxide and a preparation method thereof, and belongs to the field of feed additives. The invention aims at solving the problems in the prior art that zinc oxide can influence the biological potency of active components in feed, and coating wall materials can not degrade timely in intestinal environment; through shielding treatment for three times, a product is prepared by the following components by weight: 90-120 parts of submicron feed-grade zinc oxide, 28-35 parts of composite shielding agents; the composite shielding agent comprises the following components by weight: 80-90 parts of potato starch, 4-6 parts of ethyl cellulose, 3-4 parts of anhydrous alcohol, 0.5-0.8 parts of magnesium stearate. A feed-grade zinc oxide product and a corresponding preparation method thereof are provided, wherein the product combines appropriate control of the degeneration degree of the shielding agent, can deshield and release in animal digestive tract, gastric and intestinal environment, and is effectively used by microbe in posterior digestive tracts.

Description

technical field [0001] The invention relates to a feed additive and a preparation method thereof. More specifically, the invention relates to a coated submicron feed grade zinc oxide and a preparation method thereof, belonging to the field of feed additives. Background technique [0002] Trace zinc is an important component of animal nutrition and a core component in the production of feed premixes. The commonly used zinc oxide has a strong pro-oxidation effect, which seriously affects the storage period and nutritional quality of feed compound premixes and compound feeds, and especially seriously reduces the nutritional effectiveness of vitamins and fat nutrients. Production is a long-standing problem of great concern. [0003] Animal nutrition and physiology studies have also proved that high zinc (feed grade zinc oxide) has a high degree of dissociation under the condition of gastric acid in the digestive tract of monogastric animals, generally above 90%. Under the cond...

AI Technical Summary

Problems solved by technology

[0007] The present invention aims to solve the problem that zinc oxide in the prior art affects the biological potency of the active ingredients in the feed, and the coating wall material cannot be degraded in the intestinal environment in time, and provides a combination suitable for controlling the denaturation of the shielding agent. To the extent that it can be unshielded and released in the environment of the digestive tract, stomach and small intestine of animals according to physiological needs, and the feed grade zinc oxide product and its corresponding preparation method that can be effectively utilized by microorganisms in the latter digestive tract