“…Garlic contains various organosulfur compounds, particularly allicin (Chi, Koh, & Stewart, 1982), which are responsible for various effects (Hosseini & Hosseinzadeh, 2015). The use of garlic in aquaculture has been shown to enhance growth (Ajiboye & Qari, 2016;Metwally, 2009;Shalaby, Khattab, & Abdel Rahman, 2006), promote the immune system (Lau, Yamasaki, & Gridley, 1991;Martins et al, 2002;Nya & Austin, 2009, strengthen the control of bacteria, viruses, and parasites (Aly & Mohamed, 2010;Nya & Austin, 2009), stimulate appetite (Ajiboye & Qari, 2016;Guo et al, 2015), and improve the flesh quality (Luo, He, Liu, & Li, 2008). Dietary supplementation of garlic (powder or extract) has been found to result in improved growth performance, increased activity of digestive enzymes and nonspecific immune system in juvenile rainbow trout, Oncorhynchus mykiss (Esmaeili, Abedian Kenari, & Rombenso, 2017), Nile tilapia, Oreochromis niloticus (Aly & Mohamed, 2010;Shalaby et al, 2006), sterlet, Acipenser ruthenus (D.-H. Lee et al, 2014), and Whiteleg Shrimp, Litopenaeus vannamei (Labrador, Guiñares, & Hontiveros, 2016;Lin, Li, Chen, Zheng, & Yang, 2006).…”