TITLE:
Evaluation of Growth Performance of a Genetically Characterized F1 Rainbow Trout, Oncorhynchus mykiss in a Recirculating Aquaculture System
AUTHORS:
José Luis Arredondo-Figueroa, Nayeli Ismene Armendáriz-Sáenz, Laura Georgina Núñez-García, Jesús Trinidad Ponce-Palafox, Irene De Los Angeles Barriga-Sosa
KEYWORDS:
Rainbow Trout, Oncorhynchus mykiss, Genetically Characterized, Growth, Performance, Water Quality
JOURNAL NAME:
Agricultural Sciences,
Vol.8 No.7,
July
29,
2017
ABSTRACT: The growth performance of a selected F1 rainbow trout genetically characterized as polymorphic with locus Omy207UoG (NA = 13, PIC = 0.891, HE = 0.9003) was evaluated in a recirculating aquaculture system (RAS). A set of 157 rainbow trout of 37.8 g of mean body weight and 14.6 cm mean total length per tank, were introduced in each of six fish tank of 5 m3 connected to a recirculating aquaculture system (RAS). The trout was rearing during 317 days. Growth performance indicators and water quality were evaluated during the experiment. The genetically selected F1 rainbow trout showed a tendency towards homogeneity in growth performance along the culture period, reaching a mean total weight of 552.2 g. The length-weight relationship indicated an isometric growth (>3.0). This study presents the basis to establish a long-term marker-assisted selection program for rainbow trout culture in a subtropical region.