Journal article
Quantitative genetic parameter estimates for body and carcass traits in a cultured stock of giant freshwater prawn (Macrobrachium rosenbergii) selected for harvest weight in Vietnam
Aquaculture, Vol.404-405, pp.122-129
2013
Abstract
We estimated the heritability and correlations between body and carcass weight traits in a cultured stock of giant freshwater prawn (GFP) (Macrobrachium rosenbergii) selected for harvest body weight in Vietnam. The data set consisted of 18,387 body and 1,730 carcass records, as well as full pedigree information collected over four generations. Variance and covariance components were estimated by restricted maximum likelihood fitting a multi-trait animal model. Across generations, estimates of heritability for body and carcass weight traits were moderate and ranged from 0.14 to 0.19 and 0.17 to 0.21, respectively. Body trait heritabilities estimated for females were significantly higher than for males whereas carcass weight trait heritabilities estimated for females and males were not significantly different (P > 0.05). Maternal effects for body traits accounted for 4 to 5% of the total variance and were greater in females than in males. Genetic correlations among body traits were generally high in the mixed sexes. Genetic correlations between body and carcass weight traits were also high. Although some issues remain regarding the best statistical model to be fitted to GFP data, our results suggest that selection for high harvest body weight based on breeding values estimated by fitting an animal model to the data can significantly improve mean body and carcass weight in GFP.
Details
- Title
- Quantitative genetic parameter estimates for body and carcass traits in a cultured stock of giant freshwater prawn (Macrobrachium rosenbergii) selected for harvest weight in Vietnam
- Authors
- D Hung (Author) - Research Institute for Aquaculture, VietnamNguyen Thanh Vu (Author) - Research Institute for Aquaculture, VietnamNguyen Hong Nguyen (Author) - University of the Sunshine Coast - Faculty of Science, Health, Education and EngineeringR W Ponzoni (Author) - WorldFish Centre, MalaysiaD Hurwood (Author) - Queensland University of TechnologyP B Mather (Author) - Queensland University of Technology
- Publication details
- Aquaculture, Vol.404-405, pp.122-129
- Publisher
- Elsevier BV
- Date published
- 2013
- DOI
- 10.1016/j.aquaculture.2013.04.027
- ISSN
- 0044-8486
- Copyright note
- Copyright © 2013. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
- 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
- 99448965902621
- Output Type
- Journal article
Metrics
126 File views/ downloads
747 Record Views
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
- Marine & Freshwater Biology