CHIMERIC LYSOZYME VARIANT AND APPLICATION THEREOF IN ANIMAL FEED ADDITIVE

摘要

Provided are a chimeric lysozyme variant having improved heat resistance and a polynucleotide encoding the variant. A novel chimeric lysozyme sequence is constructed, and high-efficiency expression in a host cell is achieved. The thermal stability of the chimeric lysozyme under the condition of 60°C is nearly doubled compared to a parental sequence. Also provided is a use of the chimeric lysozyme variant. Also provided are an animal feed additive containing the chimeric lysozyme variant and an animal feed containing the animal feed additive. The feed additive has a significant effect on animal growth performance and greatly improves the conversion rate of the feed.