“…Leporinus macrocephalus females show higher growth rates than males (Reidel et al, 2004), which is a factor that can be used to increase productivity without the need to enlarge the area of cultivation, and, in addition, to reduce the time of slaughter. The use of endocrine techniques for sexual inversion is widely used in fish production, and it directs the formation of monosex populations for the genus that presents zootechnical advantages (Devlin and Nagahama, 2002;Cnaani and Levavi-Sivan, 2009;Singh, 2013;Örn et al, 2016;Thuong et al, 2017;Alcántar-Vázquez, 2018;Vidal-López et al, 2019). In aquaculture this may represent significant economic gain, adding value to the product if only individuals from the sex with the best growth rates are produced.…”