Under the guidance of Academician Li Defa, Gendone embarked on GAA research in 2007. Seven years of dedicated effort culminated in the issuance of a product certificate for this new feed additive on October 23, 2014, coinciding with the completion of our GAA production facility. Since 2015, Gendone's GAA business has witnessed continuous breakthroughs. We have developed a detection method for GAA, successfully incorporated it into the growth and fattening of pigs, established industry quality standards, and introduced various GAA products including rumen GAA and water-soluble GAA. Moreover, we secured the group standard accreditation from the Zhongguancun Standardization Association (ZSA) for Feed Additive Guanidino Acetic Acid（GAA） (T/ZSA 219-2024). Today, Gendone's GAA products enjoy widespread recognition and utilization among domestic and international feed and breeding enterprises, spanning over 30 countries and regions worldwide. Built upon a profound foundation of R&D heritage and extensive industrial practice, Gendone remains steadfast in its commitment to validating product value through scientific data. To systematically showcase the practical efficacy of Guanidinoacetic Acid (GAA) in animal production, we have compiled a comprehensive collection of key experimental results spanning various animal species and growth stages. Through objective and detailed data, this volume aims to further elucidate the mechanism of action and the tangible economic benefits of our applications.