Influence of genetic markers on the feeding behavior of yearling bulls

Background: The search for gene and marker effects on economically important traits is aimed not only to understanding the genetic architecture of complex traits but also to applying the information to breeding schemes. Objective: To analyze the effect of two temperament-related SNPs (rs109576799 lo...

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Autores principales:	Estela Garza-Brenner, Ana M. Sifuentes-Rincón, Felipe A. Rodríguez Almeida, Ronald D. Randel, G. Manuel Parra-Bracamonte, Williams Arellano Vera
Formato:	article
Lenguaje:	EN
Publicado:	Universidad de Antioquia 2019
Materias:	beef cattle feed efficiency residual feed intake single nucleotide polymorphism temperament Animal culture SF1-1100
Acceso en línea:	https://doaj.org/article/5750b35e8d8d45cfbb51e0429a5fd604
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spelling	oai:doaj.org-article:5750b35e8d8d45cfbb51e0429a5fd6042021-12-01T19:15:23ZInfluence of genetic markers on the feeding behavior of yearling bulls2256-295810.17533/udea.rccp.v32n1a02https://doaj.org/article/5750b35e8d8d45cfbb51e0429a5fd6042019-03-01T00:00:00Zhttps://revistas.udea.edu.co/index.php/rccp/article/view/332022https://doaj.org/toc/2256-2958Background: The search for gene and marker effects on economically important traits is aimed not only to understanding the genetic architecture of complex traits but also to applying the information to breeding schemes. Objective: To analyze the effect of two temperament-related SNPs (rs109576799 located in the DRD3 gene, and rs43696138 in the HTR2A gene) on feeding performance of Mexican beef cattle. Methods: One hundred and thirty-six young beef bulls were included in a centralized feed efficiency performance test based on residual feed intake (RFI), with 20 d for adaptation and 70 d of feed efficiency testing. In addition to feeding traits, temperament was assessed at the beginning of the trial using pen score (PS) and exit velocity (EV). All animals were genotyped with two markers located in the HTR2A and DRD3 genes, and an association analysis was conducted between these genotypes and the measured traits. Results: For Brangus breed, a significant association was obtained between average daily gain (ADG; p=0.019), and the rs43696138 marker, resulting in higher gains for homozygous genotype GG (1.69 ± 0.04 kg), when compared to the heterozygous genotype GA (1.54 ± 0.04 kg). Conclusion: The previously reported association of these markers with temperament was not confirmed in the evaluated breeds; however, the rs43696138 marker showed an effect on a feeding performance trait. Further studies are needed to determine the effect of this and other markers on both RFI and temperament.Estela Garza-BrennerAna M. Sifuentes-RincónFelipe A. Rodríguez AlmeidaRonald D. RandelG. Manuel Parra-BracamonteWilliams Arellano VeraUniversidad de Antioquiaarticlebeef cattlefeed efficiencyresidual feed intakesingle nucleotide polymorphismtemperamentAnimal cultureSF1-1100ENRevista Colombiana de Ciencias Pecuarias, Vol 32, Iss 1, Pp 14-20 (2019)
institution	DOAJ
collection	DOAJ
language	EN
topic	beef cattle feed efficiency residual feed intake single nucleotide polymorphism temperament Animal culture SF1-1100
spellingShingle	beef cattle feed efficiency residual feed intake single nucleotide polymorphism temperament Animal culture SF1-1100 Estela Garza-Brenner Ana M. Sifuentes-Rincón Felipe A. Rodríguez Almeida Ronald D. Randel G. Manuel Parra-Bracamonte Williams Arellano Vera Influence of genetic markers on the feeding behavior of yearling bulls
description	Background: The search for gene and marker effects on economically important traits is aimed not only to understanding the genetic architecture of complex traits but also to applying the information to breeding schemes. Objective: To analyze the effect of two temperament-related SNPs (rs109576799 located in the DRD3 gene, and rs43696138 in the HTR2A gene) on feeding performance of Mexican beef cattle. Methods: One hundred and thirty-six young beef bulls were included in a centralized feed efficiency performance test based on residual feed intake (RFI), with 20 d for adaptation and 70 d of feed efficiency testing. In addition to feeding traits, temperament was assessed at the beginning of the trial using pen score (PS) and exit velocity (EV). All animals were genotyped with two markers located in the HTR2A and DRD3 genes, and an association analysis was conducted between these genotypes and the measured traits. Results: For Brangus breed, a significant association was obtained between average daily gain (ADG; p=0.019), and the rs43696138 marker, resulting in higher gains for homozygous genotype GG (1.69 ± 0.04 kg), when compared to the heterozygous genotype GA (1.54 ± 0.04 kg). Conclusion: The previously reported association of these markers with temperament was not confirmed in the evaluated breeds; however, the rs43696138 marker showed an effect on a feeding performance trait. Further studies are needed to determine the effect of this and other markers on both RFI and temperament.
format	article
author	Estela Garza-Brenner Ana M. Sifuentes-Rincón Felipe A. Rodríguez Almeida Ronald D. Randel G. Manuel Parra-Bracamonte Williams Arellano Vera
author_facet	Estela Garza-Brenner Ana M. Sifuentes-Rincón Felipe A. Rodríguez Almeida Ronald D. Randel G. Manuel Parra-Bracamonte Williams Arellano Vera
author_sort	Estela Garza-Brenner
title	Influence of genetic markers on the feeding behavior of yearling bulls
title_short	Influence of genetic markers on the feeding behavior of yearling bulls
title_full	Influence of genetic markers on the feeding behavior of yearling bulls
title_fullStr	Influence of genetic markers on the feeding behavior of yearling bulls
title_full_unstemmed	Influence of genetic markers on the feeding behavior of yearling bulls
title_sort	influence of genetic markers on the feeding behavior of yearling bulls
publisher	Universidad de Antioquia
publishDate	2019
url	https://doaj.org/article/5750b35e8d8d45cfbb51e0429a5fd604
work_keys_str_mv	AT estelagarzabrenner influenceofgeneticmarkersonthefeedingbehaviorofyearlingbulls AT anamsifuentesrincon influenceofgeneticmarkersonthefeedingbehaviorofyearlingbulls AT felipearodriguezalmeida influenceofgeneticmarkersonthefeedingbehaviorofyearlingbulls AT ronalddrandel influenceofgeneticmarkersonthefeedingbehaviorofyearlingbulls AT gmanuelparrabracamonte influenceofgeneticmarkersonthefeedingbehaviorofyearlingbulls AT williamsarellanovera influenceofgeneticmarkersonthefeedingbehaviorofyearlingbulls
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Influence of genetic markers on the feeding behavior of yearling bulls

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