Genetic parameter for meat fatty acid profile of Nelore cattle finished in feedlot
The aim of this study was to estimate (co)variance components and genetic parameters (heritability and genetic correlations) for meat fatty acid composition in Nellore cattle. The fatty acids analyzed were: conjugated linoleic acid - CLA (C18:2 trans-10 cis-12), palmitic acid (C16:0), stearic acid (...
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| Format: | Article |
| Language: | English |
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Instituto de Zootecnia
2015-02-01
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| Series: | Boletim de Indústria Animal |
| Subjects: | |
| Online Access: | https://35.198.24.243/index.php/bia/article/view/401 |
| _version_ | 1797749380763090944 |
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| author | Bianca Ferreira Olivieri Carolyn Aboujaoude Mariana Piatto Berton Fabieli Loise Braga Feitosa Angélica Simone Cravo Pereira Adrielle Matias Ferrinho Lenise Freitas Mueller Joyce de Jesus Mangini Furlan Mônica Mazalli Fernando Baldi |
| author_facet | Bianca Ferreira Olivieri Carolyn Aboujaoude Mariana Piatto Berton Fabieli Loise Braga Feitosa Angélica Simone Cravo Pereira Adrielle Matias Ferrinho Lenise Freitas Mueller Joyce de Jesus Mangini Furlan Mônica Mazalli Fernando Baldi |
| author_sort | Bianca Ferreira Olivieri |
| collection | DOAJ |
| description | The aim of this study was to estimate (co)variance components and genetic parameters (heritability and genetic correlations) for meat fatty acid composition in Nellore cattle. The fatty acids analyzed were: conjugated linoleic acid - CLA (C18:2 trans-10 cis-12), palmitic acid (C16:0), stearic acid (C18:0), oleic acid (C18:1 cis-9), linoleic acid (C18:2 cis- 9-12) and linolenic acid (C18:3). A total of 751 Nellore bulls, finished in feedlot for at least 90 days, with average age at slaughter of 24 months were used. The animals belong to eight farms located in the Southeast, Northeast and Midwest regions, of São Paulo State, which comprise three specific genetic breeding programs. The fatty acid determination was carried out at the Laboratory of Meat Science (LCC), Department of Animal Production and Nutrition FMVZ/USP. Samples from theLongissimus muscle were collected 48 hours after slaughter. The determination of meat fatty acid profile was performed by the method of Folch et al. (1957) and Kramer et al. (1997). Fatty acids were quantified by gas chromatography (GC-2010 Plus - Shimadzu AOC 20i auto sampler) using SP-2560 capillary column (100 m × 0.25 mm in diameter with 0.02 mm thickness, Supelco, Bellefonte, PA). To estimate the (co) variance components and genetic parameters, the model included the additive genetic effect as random effect, and the fixed effects of the contemporary group and animal's age at slaughter as a covariable (linear effect). The model used for the estimation of the included random direct genetic effect, the fixed effect of the GC, and the animal's age at slaughter as a covariate (linear effect).The (co)variance components and genetic parameters were estimated by Bayesian inference with a linear multi-trait animal model, using the GIBBS2F90 program. The convergence of the data was verified using the R software package analyzed with the Bayesian Output Analysis (BOA) of the R 2.9.0 software (The R Development Core Team, 2009). Heritability estimates obtained for the fatty acids analyzed were: 0.52; 0.26; 0.68; 0.57; 0.46 and 0.41 for CLA, palmitic acid, stearic acid, oleic acid, linoleic acid and linolenic acid, respectively. The genetic correlation estimates between the palmitic acid (C16: 0) with stearic acid, oleic acid, linoleic acid, linolenic acid and CLA showed the following values: 0.14; 0.39; -0.09; -0.33; 0.34. The genetic correlation estimates between the stearic acid with oleic acid, linoleic acid, linolenic acid and CLA were 0.24, -0.06, -0.21 and 0.22, respectively. For the oleic acid, the genetic correlation estimates were -0.04, -0.02 and -0.02, with the linoleic acid, linolenic acid and CLA, respectively. The genetic correlation estimated between the linolenic acid and CLA was close to zero. Most of the genetic correlations estimates between fatty acids were low to moderate. The heritability estimates for fatty acids were moderate to high, indicating that these traits would respond rapidly to selection. The genetic correlation estimates between fatty acids with different degrees of saturation suggest that indirect selection to improve the meat fatty acid composition is possible. |
| first_indexed | 2024-03-12T16:19:14Z |
| format | Article |
| id | doaj.art-2a95edecdcf24bcbb68863fc581bb52d |
| institution | Directory Open Access Journal |
| issn | 1981-4100 |
| language | English |
| last_indexed | 2024-03-12T16:19:14Z |
| publishDate | 2015-02-01 |
| publisher | Instituto de Zootecnia |
| record_format | Article |
| series | Boletim de Indústria Animal |
| spelling | doaj.art-2a95edecdcf24bcbb68863fc581bb52d2023-08-08T23:41:47ZengInstituto de ZootecniaBoletim de Indústria Animal1981-41002015-02-0171Genetic parameter for meat fatty acid profile of Nelore cattle finished in feedlotBianca Ferreira Olivieri0Carolyn Aboujaoude1Mariana Piatto Berton2Fabieli Loise Braga Feitosa3Angélica Simone Cravo Pereira4Adrielle Matias Ferrinho5Lenise Freitas Mueller6Joyce de Jesus Mangini Furlan7Mônica Mazalli8Fernando Baldi9Universidade Estadual Paulista Júlio de Mesquita Filho, Faculdade de Ciências Agrárias e Veterinárias, Jaboticabal, SPUniversidade Estadual Paulista Júlio de Mesquita Filho, Faculdade de Ciências Agrárias e Veterinárias, Jaboticabal, SPUniversidade Estadual Paulista Júlio de Mesquita Filho, Faculdade de Ciências Agrárias e Veterinárias, Jaboticabal, SPUniversidade Estadual Paulista Júlio de Mesquita Filho, Faculdade de Ciências Agrárias e Veterinárias, Jaboticabal, SPUniversidade de São Paulo, Faculdade de Medicina Veterinária e Zootecnia, Pirassununga, SPUniversidade de São Paulo, Faculdade de Medicina Veterinária e Zootecnia, Pirassununga, SPUniversidade de São Paulo, Faculdade de Medicina Veterinária e Zootecnia, Pirassununga, SPUniversidade de São Paulo, Faculdade de Medicina Veterinária e Zootecnia, Pirassununga, SPUniversidade de São Paulo, Faculdade de Zootecnia e Engenharia de Alimentos, Pirassununga, SPUniversidade Estadual Paulista Júlio de Mesquita Filho, Faculdade de Ciências Agrárias e Veterinárias, Jaboticabal, SPThe aim of this study was to estimate (co)variance components and genetic parameters (heritability and genetic correlations) for meat fatty acid composition in Nellore cattle. The fatty acids analyzed were: conjugated linoleic acid - CLA (C18:2 trans-10 cis-12), palmitic acid (C16:0), stearic acid (C18:0), oleic acid (C18:1 cis-9), linoleic acid (C18:2 cis- 9-12) and linolenic acid (C18:3). A total of 751 Nellore bulls, finished in feedlot for at least 90 days, with average age at slaughter of 24 months were used. The animals belong to eight farms located in the Southeast, Northeast and Midwest regions, of São Paulo State, which comprise three specific genetic breeding programs. The fatty acid determination was carried out at the Laboratory of Meat Science (LCC), Department of Animal Production and Nutrition FMVZ/USP. Samples from theLongissimus muscle were collected 48 hours after slaughter. The determination of meat fatty acid profile was performed by the method of Folch et al. (1957) and Kramer et al. (1997). Fatty acids were quantified by gas chromatography (GC-2010 Plus - Shimadzu AOC 20i auto sampler) using SP-2560 capillary column (100 m × 0.25 mm in diameter with 0.02 mm thickness, Supelco, Bellefonte, PA). To estimate the (co) variance components and genetic parameters, the model included the additive genetic effect as random effect, and the fixed effects of the contemporary group and animal's age at slaughter as a covariable (linear effect). The model used for the estimation of the included random direct genetic effect, the fixed effect of the GC, and the animal's age at slaughter as a covariate (linear effect).The (co)variance components and genetic parameters were estimated by Bayesian inference with a linear multi-trait animal model, using the GIBBS2F90 program. The convergence of the data was verified using the R software package analyzed with the Bayesian Output Analysis (BOA) of the R 2.9.0 software (The R Development Core Team, 2009). Heritability estimates obtained for the fatty acids analyzed were: 0.52; 0.26; 0.68; 0.57; 0.46 and 0.41 for CLA, palmitic acid, stearic acid, oleic acid, linoleic acid and linolenic acid, respectively. The genetic correlation estimates between the palmitic acid (C16: 0) with stearic acid, oleic acid, linoleic acid, linolenic acid and CLA showed the following values: 0.14; 0.39; -0.09; -0.33; 0.34. The genetic correlation estimates between the stearic acid with oleic acid, linoleic acid, linolenic acid and CLA were 0.24, -0.06, -0.21 and 0.22, respectively. For the oleic acid, the genetic correlation estimates were -0.04, -0.02 and -0.02, with the linoleic acid, linolenic acid and CLA, respectively. The genetic correlation estimated between the linolenic acid and CLA was close to zero. Most of the genetic correlations estimates between fatty acids were low to moderate. The heritability estimates for fatty acids were moderate to high, indicating that these traits would respond rapidly to selection. The genetic correlation estimates between fatty acids with different degrees of saturation suggest that indirect selection to improve the meat fatty acid composition is possible.https://35.198.24.243/index.php/bia/article/view/401Bos indicusfatty acid compositiongenetic variability |
| spellingShingle | Bianca Ferreira Olivieri Carolyn Aboujaoude Mariana Piatto Berton Fabieli Loise Braga Feitosa Angélica Simone Cravo Pereira Adrielle Matias Ferrinho Lenise Freitas Mueller Joyce de Jesus Mangini Furlan Mônica Mazalli Fernando Baldi Genetic parameter for meat fatty acid profile of Nelore cattle finished in feedlot Boletim de Indústria Animal Bos indicus fatty acid composition genetic variability |
| title | Genetic parameter for meat fatty acid profile of Nelore cattle finished in feedlot |
| title_full | Genetic parameter for meat fatty acid profile of Nelore cattle finished in feedlot |
| title_fullStr | Genetic parameter for meat fatty acid profile of Nelore cattle finished in feedlot |
| title_full_unstemmed | Genetic parameter for meat fatty acid profile of Nelore cattle finished in feedlot |
| title_short | Genetic parameter for meat fatty acid profile of Nelore cattle finished in feedlot |
| title_sort | genetic parameter for meat fatty acid profile of nelore cattle finished in feedlot |
| topic | Bos indicus fatty acid composition genetic variability |
| url | https://35.198.24.243/index.php/bia/article/view/401 |
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