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The genetic parameters of feed efficiency and its component traits in the turkey (Meleagris gallopavo)
Residual feed intake (RFI) and feed conversion ratio (FCR) can be incorporated into a breeding program as traits to select for feed efficiency. Alternatively, the direct measures used to calculate RFI and FCR can be analyzed to determine the underlying variation in the traits that impact overall eff...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
BioMed Central
2012
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3296663/ https://www.ncbi.nlm.nih.gov/pubmed/22268922 http://dx.doi.org/10.1186/1297-9686-44-2 |
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author | Case, Lindsay A Wood, Benjamin J Miller, Stephen P |
author_facet | Case, Lindsay A Wood, Benjamin J Miller, Stephen P |
author_sort | Case, Lindsay A |
collection | PubMed |
description | Residual feed intake (RFI) and feed conversion ratio (FCR) can be incorporated into a breeding program as traits to select for feed efficiency. Alternatively, the direct measures used to calculate RFI and FCR can be analyzed to determine the underlying variation in the traits that impact overall efficiency. These constituent traits can then be appropriately weighted in an index to achieve genetic gain. To investigate feed efficiency in the turkey, feed intake and weight gain were measured on male primary breeder line turkeys housed in individual feeding cages from 15 to 19 weeks of age. The FCR and RFI showed moderate heritability values of 0.16 and 0.21, respectively. Feed intake, body weight, and weight gain were also moderately heritable (0.25, 0.35, and 0.18, respectively). Weight gain was negatively correlated to feed conversion ratio and was not genetically correlated to RFI. Body weight had a small and positive genetic correlation to RFI (0.09) and FCR (0.12). Feed intake was positively genetically correlated to RFI (0.62); however, there was no genetic correlation between feed intake and FCR. These estimates of heritability and the genetic correlations can be used in the development of an index to improve feed efficiency and reduce the cost of production. |
format | Online Article Text |
id | pubmed-3296663 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2012 |
publisher | BioMed Central |
record_format | MEDLINE/PubMed |
spelling | pubmed-32966632012-03-09 The genetic parameters of feed efficiency and its component traits in the turkey (Meleagris gallopavo) Case, Lindsay A Wood, Benjamin J Miller, Stephen P Genet Sel Evol Research Residual feed intake (RFI) and feed conversion ratio (FCR) can be incorporated into a breeding program as traits to select for feed efficiency. Alternatively, the direct measures used to calculate RFI and FCR can be analyzed to determine the underlying variation in the traits that impact overall efficiency. These constituent traits can then be appropriately weighted in an index to achieve genetic gain. To investigate feed efficiency in the turkey, feed intake and weight gain were measured on male primary breeder line turkeys housed in individual feeding cages from 15 to 19 weeks of age. The FCR and RFI showed moderate heritability values of 0.16 and 0.21, respectively. Feed intake, body weight, and weight gain were also moderately heritable (0.25, 0.35, and 0.18, respectively). Weight gain was negatively correlated to feed conversion ratio and was not genetically correlated to RFI. Body weight had a small and positive genetic correlation to RFI (0.09) and FCR (0.12). Feed intake was positively genetically correlated to RFI (0.62); however, there was no genetic correlation between feed intake and FCR. These estimates of heritability and the genetic correlations can be used in the development of an index to improve feed efficiency and reduce the cost of production. BioMed Central 2012-01-23 /pmc/articles/PMC3296663/ /pubmed/22268922 http://dx.doi.org/10.1186/1297-9686-44-2 Text en Copyright ©2012 Case et al; licensee BioMed Central Ltd. http://creativecommons.org/licenses/by/2.0 This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Research Case, Lindsay A Wood, Benjamin J Miller, Stephen P The genetic parameters of feed efficiency and its component traits in the turkey (Meleagris gallopavo) |
title | The genetic parameters of feed efficiency and its component traits in the turkey (Meleagris gallopavo) |
title_full | The genetic parameters of feed efficiency and its component traits in the turkey (Meleagris gallopavo) |
title_fullStr | The genetic parameters of feed efficiency and its component traits in the turkey (Meleagris gallopavo) |
title_full_unstemmed | The genetic parameters of feed efficiency and its component traits in the turkey (Meleagris gallopavo) |
title_short | The genetic parameters of feed efficiency and its component traits in the turkey (Meleagris gallopavo) |
title_sort | genetic parameters of feed efficiency and its component traits in the turkey (meleagris gallopavo) |
topic | Research |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3296663/ https://www.ncbi.nlm.nih.gov/pubmed/22268922 http://dx.doi.org/10.1186/1297-9686-44-2 |
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