Effect of dietary amino acid composition from proteins alternative to fishmeal on the growth of juveniles of the common snook, Centropomus undecimalis

Cristiane Freire Silvão,Alberto Jorge Pinto Nunes

doi:10.1590/s1806-92902017000700003

Cristiane Freire Silvão, Alberto Jorge Pinto Nunes

Open Access

https://doi.org/10.1590/s1806-92902017000700003

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Abstract

ABSTRACT This study investigated the effect of dietary amino acid composition from proteins alternative to fishmeal on the growth performance of the common snook, Centropomus undecimalis. Fish of 10.79±0.71 g (n = 150) were stocked in 15 shaded outdoor tanks of 1 m3. The basal diet contained 643.4 g kg−1 salmon byproduct meal (SML) and 200.0 g kg−1 soy protein concentrate (SPC). Two other diets replaced 39 and 29% of the SML with poultry byproduct meal (PBM, 170.1 g kg−1) [...]

Highlights

Marine fish farming is one of the fastest growing aquaculture sectors, in terms of value, harvested volumes, and number of emerging farmed species
The present study investigated the Silvão and Nunes effect of the dietary amino acid composition from protein sources alternative to fishmeal on the growth performance of juveniles of the common snook
Significant differences among dietary treatments were noted in DWG, SGR, fish yield, Feed conversion ratio (FCR), and final body weight (P

Summary

Introduction

Marine fish farming is one of the fastest growing aquaculture sectors, in terms of value, harvested volumes, and number of emerging farmed species. In the Americas, the common snook, Centropomus undecimalis, is a marine fish of commercial interest. The species attracts high prices as recreational and commercial fish because of its highly valued fillet (Rhody et al, 2010; Muller and Taylor, 2012). The common snook can tolerate a wide range of salinities (Pérez-Pinzón and Lutz, 1991; Tucker and Kennedy, 2003; Gracia-López et al, 2006) and preys on small fish, shrimp, and crabs in its natural habitat (Rivas, 1986; Tsuzuki et al, 2007; Alvarez-Lajonchère and Ibarra-Castro et al, 2013). Broodstock can mature and spawn in captivity (Neidig et al, 2000; Sánchez-Zamora et al, 2002; Ferraz and Cerqueira, 2010; Ibarra-Castro et al, 2011; Rhody et al, 2014; Contreras-García et al, 2015) and pilot-scale mass production of fries has been achieved (Ibarra-Castro et al, 2011)

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