Biodiesel‐derived glycerol as a dietary maize replacement for silver catfish ( Rhamdia quelen ) during the fattening phase

Abstract

Brazilian agriculture has undergone important changes since the 1960s, where public policies were responsible for building an institutional environment favourable to innovation and knowledge and technology adaptation (Vieira Filho & Fishlow, 2017). This has, in turn, led to dramatic increases in agricultural production (Schulter & Filho, 2017).Food security concerns and a growing interest in environmental sustainability are among the main challenges to be faced by countries in the coming decades, due to worldwide population growths (Schulter & Filho, 2017;Vieira Filho & Fishlow, 2017). The productive efficiency of agricultural activities, however, still requires improvements, driven by exponential food demand increases by the world's population (Food and Agriculture Organization of the United Nations [FAO], 2017). In this context, aquaculture has contributed effectively to animal production worldwide, displaying the greatest development in recent years among agricultural activities (FAO, 2020).It is estimated that the global fish production reached 179 million tons in 2018, of which 156 million were destined for human