Method for preparing feed additive containing antibacterial peptide

Abstract

The invention belongs to the technical field of feed additives, particularly relates to a method for preparing a feed additive containing antibacterial peptides, and provides the following scheme aiming at the problems proposed in the background technology: the method comprises the following steps: S1, taking materials; s2, crushing and stirring; s3, aerobic fermentation; s4, rejuvenating the strains; s5, strain fermentation; s6, pretreatment of fermentation liquor; s7, antibacterial peptide extraction; and S8, compounding the antibacterial peptide with a feed additive. Probiotic microorganisms are added in the strain fermentation process in the step S5, and a stabilizer is added in the fermentation liquor pretreatment in the step S6 to stabilize the fermentation liquor, so that the fermentation liquor is prevented from being decomposed, the activity is improved, and the content is increased; and finally, the prepared feed additive is combined, so that the prepared feed additive containing the antibacterial peptide is high in nutrient content, beneficial to improving the growth rate of animals, beneficial to promoting intestinal absorption of the animals and beneficial to enhancing physique and immunity.

Description

technical field [0001] The invention relates to the technical field of feed additives, in particular to a method for preparing a feed additive containing antimicrobial peptides. Background technique [0002] In the process of modern livestock and poultry farming, in order to prevent and treat animal diseases, excessive antibiotic products are often used to ensure the health of animals, but the excessive use of antibiotics often leads to the decline in the quality of animal meat products and their products and the enhancement of antibiotic resistance, resulting in transmission through the food chain. Human health is also seriously affected by the problem of antibiotics. In order to reduce the problem of antibiotic residues in livestock and poultry farming, increase productivity, and reduce environmental pollution from the livestock and poultry industry, the development of feed additives has become a hot spot in recent years. Among them, feed additives based on antimicrobial p...

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Problems solved by technology

[0003] However, the current methods for preparing feed additives containing antimicrobial peptides still have many deficiencies in the operation process: on the one hand, the current feed additives have the problems of toxicity, poor sweetness, poor taste and low nutritional content in the preparation process, and in the preparation process In this method, the bacteria in the feed additives are not eliminated, which leads to the subsequent process of compounding with the antimicrobial peptides to be easily killed by the antimicrobial peptides, thereby making the antimicrobial peptides inactive; on the other hand, the existing antimicrobial peptides are being prepared Microbial fermentation is not carried out during the process, resulting in the antimicrobial peptides not having the effect of promoting digestion and absorption, and the antimicrobial peptides are easy to decompose during the preparation process

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