1. AOAC, 2005. Official Methods of Analysis of AOAC International. 18th edn. Association of official analytical chemist., Arlington, VA, USA.
2. Public health risks: antibiotic resistance-review;Barton;Asian-australas. J. Anim. Sci.,2001
3. DANMAP, 2020. Use of antimicrobial agents and occurrence of antimicrobial resistance in bacteria from food animals, food and humans in Denmark. ISSN 1600-2032. www.danmap.org (28 August 2022).
4. Strategic use of feed ingredients and feed additives to stimulate gut health and development in young pigs;De Lange;Livest. Sci.,2010
5. Effects of dietary threonine on performance, plasma parameters and immune function of growing pigs;Defa;Anim. Feed Sci. Technol.,1999