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Identifying early indicator traits for sow longevity using a linear-threshold model in Thai Large White and Landrace females

OBJECTIVE: The objective of the study was to investigate the possibility of utilizing an early litter size trait as an indirect selection trait for longevity and to estimate genetic parameters between sow stayability and litter size at different parities using a linear-threshold model for longevity...

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Autores principales: Plaengkaeo, Suppasit, Duangjinda, Monchai, Stalder, Kenneth J.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Asian-Australasian Association of Animal Production Societies 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7888498/
https://www.ncbi.nlm.nih.gov/pubmed/32106649
http://dx.doi.org/10.5713/ajas.19.0855
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author Plaengkaeo, Suppasit
Duangjinda, Monchai
Stalder, Kenneth J.
author_facet Plaengkaeo, Suppasit
Duangjinda, Monchai
Stalder, Kenneth J.
author_sort Plaengkaeo, Suppasit
collection PubMed
description OBJECTIVE: The objective of the study was to investigate the possibility of utilizing an early litter size trait as an indirect selection trait for longevity and to estimate genetic parameters between sow stayability and litter size at different parities using a linear-threshold model for longevity in Thai Large White (LW) and Landrace (LR) populations. METHODS: The data included litter size at first, second, and third parities (NBA1, NBA2, and NBA3) and sow stayability from first to fourth farrowings (STAY14). The data was obtained from 10,794 LR and 9,475 LW sows. Genetic parameters were estimated using the multiple-trait animal model. A linear-threshold model was used in which NBA1, NBA2, and NBA3 were continuous traits, while STAY14 was considered a binary trait. RESULTS: Heritabilities for litter size were low and ranged from 0.01 to 0.06 for both LR and LW breeds. Similarly, heritabilities for stayability were low for both breeds. Genetic associations between litter size and stayability ranged from 0.43 to 0.65 for LR populations and 0.12 to 0.55 for LW populations. The genetic correlation between NBA1 and STAY14 was moderate and in a favorable direction for both LR and LW breeds (0.65 and 0.55, respectively). CONCLUSION: A linear-threshold model could be utilized to analyze litter size and sow stayability traits. Furthermore, selection for litter size at first parity, which was the genetic trait correlated with longevity, is possible when one attempts to improve lifetime productivity in Thai swine populations.
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spelling pubmed-78884982021-02-22 Identifying early indicator traits for sow longevity using a linear-threshold model in Thai Large White and Landrace females Plaengkaeo, Suppasit Duangjinda, Monchai Stalder, Kenneth J. Anim Biosci Article OBJECTIVE: The objective of the study was to investigate the possibility of utilizing an early litter size trait as an indirect selection trait for longevity and to estimate genetic parameters between sow stayability and litter size at different parities using a linear-threshold model for longevity in Thai Large White (LW) and Landrace (LR) populations. METHODS: The data included litter size at first, second, and third parities (NBA1, NBA2, and NBA3) and sow stayability from first to fourth farrowings (STAY14). The data was obtained from 10,794 LR and 9,475 LW sows. Genetic parameters were estimated using the multiple-trait animal model. A linear-threshold model was used in which NBA1, NBA2, and NBA3 were continuous traits, while STAY14 was considered a binary trait. RESULTS: Heritabilities for litter size were low and ranged from 0.01 to 0.06 for both LR and LW breeds. Similarly, heritabilities for stayability were low for both breeds. Genetic associations between litter size and stayability ranged from 0.43 to 0.65 for LR populations and 0.12 to 0.55 for LW populations. The genetic correlation between NBA1 and STAY14 was moderate and in a favorable direction for both LR and LW breeds (0.65 and 0.55, respectively). CONCLUSION: A linear-threshold model could be utilized to analyze litter size and sow stayability traits. Furthermore, selection for litter size at first parity, which was the genetic trait correlated with longevity, is possible when one attempts to improve lifetime productivity in Thai swine populations. Asian-Australasian Association of Animal Production Societies 2021-01 2020-02-25 /pmc/articles/PMC7888498/ /pubmed/32106649 http://dx.doi.org/10.5713/ajas.19.0855 Text en Copyright © 2021 by Animal Bioscience This is an open-access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Article
Plaengkaeo, Suppasit
Duangjinda, Monchai
Stalder, Kenneth J.
Identifying early indicator traits for sow longevity using a linear-threshold model in Thai Large White and Landrace females
title Identifying early indicator traits for sow longevity using a linear-threshold model in Thai Large White and Landrace females
title_full Identifying early indicator traits for sow longevity using a linear-threshold model in Thai Large White and Landrace females
title_fullStr Identifying early indicator traits for sow longevity using a linear-threshold model in Thai Large White and Landrace females
title_full_unstemmed Identifying early indicator traits for sow longevity using a linear-threshold model in Thai Large White and Landrace females
title_short Identifying early indicator traits for sow longevity using a linear-threshold model in Thai Large White and Landrace females
title_sort identifying early indicator traits for sow longevity using a linear-threshold model in thai large white and landrace females
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7888498/
https://www.ncbi.nlm.nih.gov/pubmed/32106649
http://dx.doi.org/10.5713/ajas.19.0855
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