The aquaculture development proposed by the Ministry of Fisheries started in 2001. It is characterised by high levels of production and a diversification of species, requiring increased industrial capacity and improvements in feed. To improve the diets it is necessary to know the nutritional requirements of the species, produce a pellet with optimal chemical and physical parameters at a minimum cost. Using alternative sources of protein, such as soybean meal, reduces the cost of feed in aquaculture