Application of nano-zinc oxide as animal feed additives

Abstract

The invention proposes a new usage for nanometer zinc oxide as an animal fodder additive. As a feed zinc source, the nanometer zinc oxide has the advantages of high bioavailability, small additive dosage and stable quality and hard reaction with other components, etc. As the feed additive, the nanometer zinc oxide can effectively supplement the demand of the animals on zinc, promote the animals to healthily grow and enhance the feed use efficiency, can effectively lower the occurrence of the diarrhea of the piglets and avoid causing the drug residue in the livestock products by the use of the antibiotics. With low use dosage, the invention reduces the contamination of the environment caused by the animal excrement. The nanometer zinc oxide promotes the growth, enhances the feed efficiency, replaces the antibiotics as the growth promoters, eliminates the residue of the antibiotics in the animal products, reduces the environmental contamination and produces the pollution-free animal products.

Description

technical field [0001] The invention belongs to animal feed additives, and specifically relates to the application of nanometer zinc oxide as an animal feed additive. technical background [0002] Zinc is an essential trace element for animals. Animal growth, bone development, fur health, appetite and physiological and biochemical metabolic activities of the animal all need zinc. Usually animal compound feed needs to add appropriate zinc element to meet the needs of animals for zinc element. The common zinc source additives in the current feed industry are feed grade zinc sulfate, ordinary zinc oxide, etc. These zinc source additives have their own advantages and disadvantages. Zinc sulfate is easily soluble in water and has high bioavailability. Among them, zinc ions are more active, easily react with other ingredients in the feed, and promote the formation of free radicals, resulting in the loss of vitamins, fats, and amino acids in the feed. Zinc sulfate dissolves rapidl...

AI Technical Summary

Problems solved by technology

When feed-grade zinc oxide is used as an additive to prevent animal diarrhea and promote growth, it needs to be added in a large dose, which can easily cause growth retardation in the later stage of weaned piglets. Large doses of zinc oxide used by animals will increase the zinc content in excreta and cause pollution. Due to the processing method The differences in the bioavailability and anti-diarrheal effect of zinc oxide lead to great variation, and zinc oxide as an anti-diarrhea and growth-promoting agent also needs new substitutes