Genetic parameters for ultrasound-evaluated carcass and body traits in Anglo-Nubian goats

Background: Meat goat breeding programs should prioritize the identification and selection of genetically superior animals for traits related to meat quality and carcass yield in order to increase the value of the final product. Objective: To estimate (co)variance components and genetic parameters f...

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Autores principales:	Luiz A. S. Figueiredo-Filho, José L. R. Sarmento, José E. G. Campelo, Natanael P. S. Santos, Luciano S. Sena, Tatiana S. Torres
Formato:	article
Lenguaje:	EN
Publicado:	Universidad de Antioquia 2020
Materias:	anglonubian animal production bayesian inference carcass (co)variance genetic correlation genetic parameters gibbs sampling goats heritability meat quality selection selection index ultrasonography Animal culture SF1-1100
Acceso en línea:	https://doaj.org/article/32b0ecb16c9a49ac94c5c6703e5a078c
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spelling	oai:doaj.org-article:32b0ecb16c9a49ac94c5c6703e5a078c2021-12-01T15:14:34ZGenetic parameters for ultrasound-evaluated carcass and body traits in Anglo-Nubian goats2256-295810.17533/udea.rccp.v34n1a04https://doaj.org/article/32b0ecb16c9a49ac94c5c6703e5a078c2020-06-01T00:00:00Zhttps://revistas.udea.edu.co/index.php/rccp/article/view/342626https://doaj.org/toc/2256-2958Background: Meat goat breeding programs should prioritize the identification and selection of genetically superior animals for traits related to meat quality and carcass yield in order to increase the value of the final product. Objective: To estimate (co)variance components and genetic parameters for ultrasound-measured carcass traits, body size and body weight in AngloNubian breed goats raised in the Mid-North region of Brazil. Methods: (Co)variance components and genetic parameters were estimated using the single and two-trait animal model analyses via Bayesian inference for loin eye dimensions (area, length, and depth), sternal fat thickness, rump height, chest circumference and depth, leg perimeter, and body weight. Results: Heritability estimates were higher when two-trait analyses were used. This finding implies that it is possible to recover part of the additive genetic variance included in the residual variance due to the correlation between traits. Genetic correlations between carcass and body size traits showed different magnitudes. On the other hand, genetic correlations between the traits related to muscularity showed high magnitudes. Conclusions: Body weight was not a good indicator of muscularity; therefore, it is not recommended as a criterion for indirect selection to improve carcass traits of Anglo-Nubian goats. Leg perimeter and chest circumference may be important to construct selection indexes in meat goat breeding programs.Luiz A. S. Figueiredo-FilhoJosé L. R. SarmentoJosé E. G. CampeloNatanael P. S. SantosLuciano S. SenaTatiana S. TorresUniversidad de Antioquiaarticleanglonubiananimal productionbayesian inferencecarcass(co)variancegenetic correlationgenetic parametersgibbs samplinggoatsheritabilitymeat qualityselectionselection indexultrasonographyAnimal cultureSF1-1100ENRevista Colombiana de Ciencias Pecuarias, Vol 34, Iss 1, Pp 40-50 (2020)
institution	DOAJ
collection	DOAJ
language	EN
topic	anglonubian animal production bayesian inference carcass (co)variance genetic correlation genetic parameters gibbs sampling goats heritability meat quality selection selection index ultrasonography Animal culture SF1-1100
spellingShingle	anglonubian animal production bayesian inference carcass (co)variance genetic correlation genetic parameters gibbs sampling goats heritability meat quality selection selection index ultrasonography Animal culture SF1-1100 Luiz A. S. Figueiredo-Filho José L. R. Sarmento José E. G. Campelo Natanael P. S. Santos Luciano S. Sena Tatiana S. Torres Genetic parameters for ultrasound-evaluated carcass and body traits in Anglo-Nubian goats
description	Background: Meat goat breeding programs should prioritize the identification and selection of genetically superior animals for traits related to meat quality and carcass yield in order to increase the value of the final product. Objective: To estimate (co)variance components and genetic parameters for ultrasound-measured carcass traits, body size and body weight in AngloNubian breed goats raised in the Mid-North region of Brazil. Methods: (Co)variance components and genetic parameters were estimated using the single and two-trait animal model analyses via Bayesian inference for loin eye dimensions (area, length, and depth), sternal fat thickness, rump height, chest circumference and depth, leg perimeter, and body weight. Results: Heritability estimates were higher when two-trait analyses were used. This finding implies that it is possible to recover part of the additive genetic variance included in the residual variance due to the correlation between traits. Genetic correlations between carcass and body size traits showed different magnitudes. On the other hand, genetic correlations between the traits related to muscularity showed high magnitudes. Conclusions: Body weight was not a good indicator of muscularity; therefore, it is not recommended as a criterion for indirect selection to improve carcass traits of Anglo-Nubian goats. Leg perimeter and chest circumference may be important to construct selection indexes in meat goat breeding programs.
format	article
author	Luiz A. S. Figueiredo-Filho José L. R. Sarmento José E. G. Campelo Natanael P. S. Santos Luciano S. Sena Tatiana S. Torres
author_facet	Luiz A. S. Figueiredo-Filho José L. R. Sarmento José E. G. Campelo Natanael P. S. Santos Luciano S. Sena Tatiana S. Torres
author_sort	Luiz A. S. Figueiredo-Filho
title	Genetic parameters for ultrasound-evaluated carcass and body traits in Anglo-Nubian goats
title_short	Genetic parameters for ultrasound-evaluated carcass and body traits in Anglo-Nubian goats
title_full	Genetic parameters for ultrasound-evaluated carcass and body traits in Anglo-Nubian goats
title_fullStr	Genetic parameters for ultrasound-evaluated carcass and body traits in Anglo-Nubian goats
title_full_unstemmed	Genetic parameters for ultrasound-evaluated carcass and body traits in Anglo-Nubian goats
title_sort	genetic parameters for ultrasound-evaluated carcass and body traits in anglo-nubian goats
publisher	Universidad de Antioquia
publishDate	2020
url	https://doaj.org/article/32b0ecb16c9a49ac94c5c6703e5a078c
work_keys_str_mv	AT luizasfigueiredofilho geneticparametersforultrasoundevaluatedcarcassandbodytraitsinanglonubiangoats AT joselrsarmento geneticparametersforultrasoundevaluatedcarcassandbodytraitsinanglonubiangoats AT joseegcampelo geneticparametersforultrasoundevaluatedcarcassandbodytraitsinanglonubiangoats AT natanaelpssantos geneticparametersforultrasoundevaluatedcarcassandbodytraitsinanglonubiangoats AT lucianossena geneticparametersforultrasoundevaluatedcarcassandbodytraitsinanglonubiangoats AT tatianastorres geneticparametersforultrasoundevaluatedcarcassandbodytraitsinanglonubiangoats
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Genetic parameters for ultrasound-evaluated carcass and body traits in Anglo-Nubian goats

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