Genetic response to combined family selection for improved mean harvest weight in giant freshwater prawn (Macrobrachium rosenbergii) in Vietnam

D Hung; Nguyen Thanh Vu; Nguyen Hong Nguyen; R W Ponzoni; D Hurwood; P B Mather

doi:10.1016/j.aquaculture.2013.07.015

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Genetic response to combined family selection for improved mean harvest weight in giant freshwater prawn (Macrobrachium rosenbergii) in Vietnam

Journal article

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Peer reviewed

Genetic response to combined family selection for improved mean harvest weight in giant freshwater prawn (Macrobrachium rosenbergii) in Vietnam

D Hung, Nguyen Thanh Vu, Nguyen Hong Nguyen, R W Ponzoni, D Hurwood and P B Mather

Aquaculture, Vol.412-413, pp.70-73

2013

DOI: https://doi.org/10.1016/j.aquaculture.2013.07.015

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Abstract

Macrobrachium rosenbergii

body traits

direct response

correlated responses

We estimated genetic changes in body and carcass weight traits in a giant freshwater prawn (GFP) (Macrobrachium rosenbergii) population selected for body weight at harvest in Vietnam. The data set consisted of 18,387 individual body and 1,730 carcass weight records, as well as full pedigree information collected over four generations. Average selection response (per generation) in body weight at harvest (transformed to square root) estimated as the difference between the Selection line and the Control group was 7.4% calculated from least squares mean (LSMs), 7.0% from estimated breeding values (EBVs) and 4.4% calculated from EBVs between two consecutive generations. Favourable correlated selection responses (estimated from LSMs) were found for other body traits including: total length, cephalothorax length, abdominal length, cephalothorax width, and abdominal width (12.1%, 14.5%, 10.4%, 15.5% and 13.3% over three selection generations, respectively). Data in the second generation of selection showed positive correlated responses for carcass weight traits including: abdominal weight, exoskeleton-off weight, and telson-off weight of 8.8%, 8.6% and 8.8%, respectively. We conclude that body weight at harvest responded well to the application of combined (between and within) family selection and correlated responses in carcass weight traits were favorable.

Details

Title: Genetic response to combined family selection for improved mean harvest weight in giant freshwater prawn (Macrobrachium rosenbergii) in Vietnam
Authors: D Hung (Author) - Research Institute for Aquaculture, Vietnam
Nguyen Thanh Vu (Author) - Research Institute for Aquaculture, Vietnam
Nguyen Hong Nguyen (Author) - University of the Sunshine Coast - Faculty of Science, Health, Education and Engineering
R W Ponzoni (Author) - WorldFish Centre, Malaysia
D Hurwood (Author) - Queensland University of Technology
P B Mather (Author) - Queensland University of Technology
Publication details: Aquaculture, Vol.412-413, pp.70-73
Publisher: Elsevier BV
Date published: 2013
DOI: 10.1016/j.aquaculture.2013.07.015
ISSN: 0044-8486
Organisation Unit: Faculty of Science, Health, Education and Engineering; School of Science and Engineering - Legacy; Faculty of Arts, Business and Law; University of the Sunshine Coast, Queensland; School of Science, Technology and Engineering; Centre for Bioinnovation
Language: English
Record Identifier: 99448632102621
Output Type: Journal article

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