Evaluation of Growth Performance of a Genetically Characterized F1 Rainbow Trout, <i>Oncorhynchus mykiss</i>in a Recirculating Aquaculture System

• 作者: Irene De Los Angeles Barriga-Sosa Jesús Trinidad Ponce-Palafox José Luis Arredondo-Figueroa Laura Georgina Nú?ez-García Nayeli Ismene Armendáriz-Sáenz
• 来源期刊: 农业科学(英文)
• 学科: 农学
• 关键词: RAINBOW TROUT ONCORHYNCHUS MYKISS Genetically Characterized Growth Performance Water Quality
• 年，卷（期）: nykxyw_2017,（7）
• 页码范围: 716-728
• 页数: 13页
• 分类号: S9

摘要

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.