Quantitative genetic parameters for body traits at different ages in a cultured stock of giant freshwater prawn (Macrobrachium rosenbergii) selected for fast growth

Dinh Hung; Nguyen Hong Nguyen; David A Hurwood; Peter B Mather

doi:10.1071/MF13111

Back

Quantitative genetic parameters for body traits at different ages in a cultured stock of giant freshwater prawn (Macrobrachium rosenbergii) selected for fast growth

Journal article

Peer reviewed

Quantitative genetic parameters for body traits at different ages in a cultured stock of giant freshwater prawn (Macrobrachium rosenbergii) selected for fast growth

Dinh Hung, Nguyen Hong Nguyen, David A Hurwood and Peter B Mather

Marine and Freshwater Research, Vol.65(3), pp.198-205

2014

DOI: https://doi.org/10.1071/MF13111

Files and links (1)

url

https://doi.org/10.1071/MF13111View

Published Version

Abstract

correlations between ages

correlated response

genetic gain

genotype by age interaction

heritability

The aim of the current study was to estimate heritabilities and correlations for body traits at different ages (Weeks 10 and 18 after stocking) in a giant freshwater prawn (Macrobrachium rosenbergii) population selected for fast growth rate in Vietnam. The dataset consisted of 4650 body records (2432 and 2218 records collected at Weeks 10 and 18, respectively) in the full pedigree comprising a total of 18 387 records. Variance and covariance components were estimated using restricted maximum likelihood fitting a multi-trait animal model. Estimates of heritability for body traits (bodyweight, body length, cephalothorax length, abdominal length, cephalothorax width and abdominal width) were moderate and ranged from 0.06 to 0.11 and from 0.11 to 0.22 at Weeks 10 and 18, respectively. Body-trait heritabilities estimated at Week 10 were not significantly lower than at Week 18. Genetic correlations between body traits within age and genetic correlations for body traits between ages were generally high. Our results suggested that selection for high growth rate in GFP can be undertaken successfully before full market size has been reached.

Details

Title: Quantitative genetic parameters for body traits at different ages in a cultured stock of giant freshwater prawn (Macrobrachium rosenbergii) selected for fast growth
Authors: Dinh Hung (Author) - Queensland University of Technology
Nguyen Hong Nguyen (Author) - University of the Sunshine Coast - Faculty of Science, Health, Education and Engineering
David A Hurwood (Author) - Queensland University of Technology
Peter B Mather (Author) - Queensland University of Technology
Publication details: Marine and Freshwater Research, Vol.65(3), pp.198-205
Publisher: C S I R O Publishing
Date published: 2014
DOI: 10.1071/MF13111
ISSN: 1323-1650
Organisation Unit: School of Science and Engineering - Legacy; University of the Sunshine Coast, Queensland; School of Science, Technology and Engineering; Centre for Bioinnovation
Language: English
Record Identifier: 99449103202621
Output Type: Journal article

Metrics

6 File views/ downloads

641 Record Views

23 Times Cited - Web of Science

InCites Highlights

These are selected metrics from InCites Benchmarking & Analytics tool, related to this output

Collaboration types: Domestic collaboration; International collaboration
Web Of Science research areas: Fisheries; Limnology; Marine & Freshwater Biology; Oceanography