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Heritability of the categorical trait ‘number of spawns’ in Pacific white female shrimp Penaeus (Litopenaeus) vannamei

We estimated the heritability for the number of spawns during a reproductive period of 30 days in female Pacific white shrimp, Penaeus (Litopenaeus) vannamei. The estimate was based on Bayesian statistical methods, with data collected on full-sibs and mothers and daughters during two generations (ye...

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Published in:Aquaculture 2005-11, Vol.250 (1), p.95-101
Main Authors: Ibarra, Ana M., Arcos, Fabiola G., Famula, Thomas R., Palacios, Elena, Racotta, Ilie S.
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Language:English
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cited_by cdi_FETCH-LOGICAL-c433t-2495bcc76e41ef7d4dd63c0b70c2143ac26ad93b15d7475e182bcc07893e39c23
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creator Ibarra, Ana M.
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description We estimated the heritability for the number of spawns during a reproductive period of 30 days in female Pacific white shrimp, Penaeus (Litopenaeus) vannamei. The estimate was based on Bayesian statistical methods, with data collected on full-sibs and mothers and daughters during two generations (years). Heritability was estimated in a threshold model for categorical data, including the fixed effects of year and sets within years. All ablated females provided information regardless of whether they spawned or not. Phenotypes were reordered for each of 5 categories: 0, 1, 2, 3, and 4 or more spawns. Heritability of spawn numbers was 0.20, with a 95% confidence interval of 0.06–0.43, indicating that this trait can be improved by selective breeding.
doi_str_mv 10.1016/j.aquaculture.2005.03.018
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source Elsevier:Jisc Collections:Elsevier Read and Publish Agreement 2022-2024:Freedom Collection (Reading list)
subjects Animal aquaculture
Animal productions
Animal reproduction
Bayesian analysis
Biological and medical sciences
Crustacea
females
Fundamental and applied biological sciences. Psychology
General aspects
Gibbs sampling
Heredity
Heritability
Invertebrates
Litopenaeus vannamei
Marine
Multiple-spawns
Penaeus (Litopenaeus) vannamei
Shellfish
shrimp
shrimp culture
spawning
Threshold
title Heritability of the categorical trait ‘number of spawns’ in Pacific white female shrimp Penaeus (Litopenaeus) vannamei
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