Author(s)

José Luis Arredondo-Figueroa¹, Nayeli Ismene Armendáriz-Sáenz², Laura Georgina Núñez-García², Jesús Trinidad Ponce-Palafox³, Irene De Los Angeles Barriga-Sosa²

¹Posta Zootécnica, Departamento de Zootecnia, Centro de Ciencias Agropecuarias, Universidad Autónoma de Aguascalientes, Jesús María, México.
²Planta experimental de Producción Acuícola, Departamento de Hidrobiología, División de Ciencias Biológicas y de la Salud, Universidad Autónoma Metropolitana Iztapalapa, Iztapalapa, México.
³Escuela Nacional de Ingeniería Pesquera, Unidad de Bioingeniería Costera, Universidad Autónoma de Nayarit, San Blas, México.

The growth performance of a selected F1 rainbow trout genetically characterized as polymorphic with locus Omy207UoG (NA = 13, PIC = 0.891, H_E = 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.

Rainbow Trout, Oncorhynchus mykiss, Genetically Characterized, Growth, Performance, Water Quality

Arredondo-Figueroa, J. , Armendáriz-Sáenz, N. , Núñez-García, L. , Ponce-Palafox, J. and Barriga-Sosa, I. (2017) Evaluation of Growth Performance of a Genetically Characterized F1 Rainbow Trout, Oncorhynchus mykiss in a Recirculating Aquaculture System. Agricultural Sciences, 8, 716-728. doi: 10.4236/as.2017.87053.