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Registro completo
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Biblioteca (s) : |
INIA Las Brujas. |
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Fecha : |
23/08/2022 |
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Actualizado : |
22/05/2023 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Nacionales |
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Autor : |
CARRACELAS, B.; NAVAJAS, E.; VERA, B.; CIAPPESONI, G. |
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Afiliación : |
EMERITA BEATRIZ CARRACELAS MARQUEZ, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; ELLY ANA NAVAJAS VALENTINI, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; BRENDA VERA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; CARLOS GABRIEL CIAPPESONI SCARONE, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
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Título : |
SNP arrays evaluation as tools in genetic improvement in Corriedale sheep in Uruguay. [Evaluación de paneles de SNP como herramientas en la mejora genética de ovinos Corriedale en Uruguay]. [Avaliação de painéis de SNP como ferramentas em melhoramento genético de ovinos Corriedale no Uruguai]. |
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Complemento del título : |
Animal production and pastures. |
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Fecha de publicación : |
2022 |
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Fuente / Imprenta : |
Agrociencia Uruguay, 2022, vol. 26, number 2, article e998. doi: https://doi.org/10.31285/AGRO.26.998 |
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ISSN : |
2730-5066 |
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DOI : |
10.31285/AGRO.26.998 |
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Idioma : |
Inglés |
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Notas : |
Article history: Received 09 Feb 2022; Accepted 30 May 2022; Published 19 Aug 2022. Editor: Mariana Carriquiry, Universidad de la República, Facultad de Agronomía, Montevideo, Uruguay. Correspondence: Beatriz Carracelas, bcarracelas@inia.org.uy -- License: This work is licensed under a Creative Commons Attribution 4.0 International License. (CC BY 4.0). |
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Contenido : |
ABSTRACT.- One control strategy for gastrointestinal nematodes (GIN) is genetic selection. This studys objective was to compare eggs per gram of feces (FEC) and fiber diameter (FD) estimated breeding values (EBV) and genomic EBV (GEBV) in Corriedale breed. Analysis included 19547 lambs with data, and 454, 711 and 383 genotypes from 170, 507 and 50K SNP chips, respectively. A univariate animal model was used for EBV and GEBV estimation, which included contemporary group, type of birth and dam age as fixed effects, and age at recording as covariate. Differential weights (?) were considered in the genomic relationship matrix (G), and the best fit models were identified using Akaikes Information Criterion (AIC), which were later used for GEBV and accuracies estimation. The use of only impacted on low density SNP chips. No differences were observed in mean accuracies for the whole population. However, in the genotyped subgroup accuracies increased by 2% with the 170 SNP chip (?=0.25), and by 5% (?=0.5) and 14% (?=0.75) with the 507 SNP chip. No differences were observed in FD EBV and GEBV mean accuracies. These results show that it is possible to increase GEBV accuracies despite the use of low-density chips -.-.-.-.-.-.-.-.-.-.-.-..-RESUMEN.- Una alternativa para el control de losnematodos gastrointestinales (NGI) es la selección genética. El objetivo de este trabajo fue comparar las precisiones de los valores de cría (EBV) y los EBV genómicos (GEBV) del recuento de huevos por gramo en heces (HPG) y diámetro de fibra (DF) en la raza Corriedale. El análisis incluyó 19547 corderos con datos fenotípicos y 454, 711 y 383 genotipados con paneles o chips de 170, 507 y 50K SNP, respectivamente. Los EBV y GEBV se estimaron con un modelo animal univariado que incluyó los efectos fijos:grupo contemporáneo, tipo de nacimiento y edad de la madre,y edad al registro como covariable. Se consideraron pesos diferenciales (?) en la matriz de relaciones genómicas, identificándose los modelos con mejor ajuste con el criterio de información de Akaike (AIC), que fueron utili-zados para la estimación de los GEBV y sus precisiones. El uso de ?solo impactó en el ajuste con paneles de baja densidad. No se encontraron diferencias en las precisiones promedio de la población total. En cambio, en el subgrupo de animales genotipados las precisiones aumentaron 2% con 170 SNP (?=0.25), y con 507 SNP 5% (?=0.5) y 14% (?=0.75). No hubo diferencias en precisiones de los EBV y los GEBV de DF. Los resultados muestran que es posible aumentar las precisiones de los GEBV aun con paneles de baja densidad. -.-.-.-.-.-.-.-.-.-.-.-..-RESUMO.- Uma alternativa para o controle de nematóidesgastrointestinais (NGI) é a seleção genética. O objetivo deste trabalho foi comparar as precisões dos valores genéticos estimados (EBV) e dos EBVs genômicos (GEBV) da contagem de ovos por grama de fezes (OPG) e diâmetro de fibra (DF) na raça Corriedale. Aanálise incluiu 19547 cordeiros com dados e 454, 711 e 383 genotipados de 170, 507 e 50K SNPs, respectivamente. Foram estimados os EBV e GEBV com um modelo animal univariado que incluiu efeitos fixos de grupo contemporâneo, tipo de nascimento e idade da mãe e idade no registro (covariável). Pesos diferenciais (?) foram considerados na matriz de relações genômicas, identificando os modelos com melhor ajuste via critério de informação de Akaike (AIC), os quais foram utilizados para estimar o GEBV e suas precisões. O uso de ?=0.75 somente impactou no ajuste com painéis de baixa densidade. Não foram encontradas diferenças na precisão média da população total. Em contraste, no subgrupo de animais genotipados as precisões aumentaram 2% com 170 SNPs (?=0.25), e com 507 SNPs 5% (?=0.5) e 14% (?=0.75). Não houve diferenças na precisão de EBV e GEBV de DF. Os resultados mostram que é possível aumentar a precisão de GEBVs mesmo que se utilizem painéis de baixa densidade. MenosABSTRACT.- One control strategy for gastrointestinal nematodes (GIN) is genetic selection. This studys objective was to compare eggs per gram of feces (FEC) and fiber diameter (FD) estimated breeding values (EBV) and genomic EBV (GEBV) in Corriedale breed. Analysis included 19547 lambs with data, and 454, 711 and 383 genotypes from 170, 507 and 50K SNP chips, respectively. A univariate animal model was used for EBV and GEBV estimation, which included contemporary group, type of birth and dam age as fixed effects, and age at recording as covariate. Differential weights (?) were considered in the genomic relationship matrix (G), and the best fit models were identified using Akaikes Information Criterion (AIC), which were later used for GEBV and accuracies estimation. The use of only impacted on low density SNP chips. No differences were observed in mean accuracies for the whole population. However, in the genotyped subgroup accuracies increased by 2% with the 170 SNP chip (?=0.25), and by 5% (?=0.5) and 14% (?=0.75) with the 507 SNP chip. No differences were observed in FD EBV and GEBV mean accuracies. These results show that it is possible to increase GEBV accuracies despite the use of low-density chips -.-.-.-.-.-.-.-.-.-.-.-..-RESUMEN.- Una alternativa para el control de losnematodos gastrointestinales (NGI) es la selección genética. El objetivo de este trabajo fue comparar las precisiones de los valores de cría (EBV) y los EBV genómicos (GEBV) del recuento... Presentar Todo |
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Palabras claves : |
Accuracy; FEC; GEBV; HPG; OPG; Precisão; Precisión. |
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Thesagro : |
CORRIEDALE. |
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Asunto categoría : |
L10 Genética y mejoramiento animal |
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URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/16637/1/998-Article-Text-6221-1-10-20220819.pdf
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Marc : |
LEADER 05383naa a2200289 a 4500
001 1063543
005 2023-05-22
008 2022 bl uuuu u00u1 u #d
022 $a2730-5066
024 7 $a10.31285/AGRO.26.998$2DOI
100 1 $aCARRACELAS, B.
245 $aSNP arrays evaluation as tools in genetic improvement in Corriedale sheep in Uruguay. [Evaluación de paneles de SNP como herramientas en la mejora genética de ovinos Corriedale en Uruguay]. [Avaliação de painéis de SNP como ferramentas em melhoramento genético de ovinos Corriedale no Uruguai].$h[electronic resource]
260 $c2022
500 $aArticle history: Received 09 Feb 2022; Accepted 30 May 2022; Published 19 Aug 2022. Editor: Mariana Carriquiry, Universidad de la República, Facultad de Agronomía, Montevideo, Uruguay. Correspondence: Beatriz Carracelas, bcarracelas@inia.org.uy -- License: This work is licensed under a Creative Commons Attribution 4.0 International License. (CC BY 4.0).
520 $aABSTRACT.- One control strategy for gastrointestinal nematodes (GIN) is genetic selection. This studys objective was to compare eggs per gram of feces (FEC) and fiber diameter (FD) estimated breeding values (EBV) and genomic EBV (GEBV) in Corriedale breed. Analysis included 19547 lambs with data, and 454, 711 and 383 genotypes from 170, 507 and 50K SNP chips, respectively. A univariate animal model was used for EBV and GEBV estimation, which included contemporary group, type of birth and dam age as fixed effects, and age at recording as covariate. Differential weights (?) were considered in the genomic relationship matrix (G), and the best fit models were identified using Akaikes Information Criterion (AIC), which were later used for GEBV and accuracies estimation. The use of only impacted on low density SNP chips. No differences were observed in mean accuracies for the whole population. However, in the genotyped subgroup accuracies increased by 2% with the 170 SNP chip (?=0.25), and by 5% (?=0.5) and 14% (?=0.75) with the 507 SNP chip. No differences were observed in FD EBV and GEBV mean accuracies. These results show that it is possible to increase GEBV accuracies despite the use of low-density chips -.-.-.-.-.-.-.-.-.-.-.-..-RESUMEN.- Una alternativa para el control de losnematodos gastrointestinales (NGI) es la selección genética. El objetivo de este trabajo fue comparar las precisiones de los valores de cría (EBV) y los EBV genómicos (GEBV) del recuento de huevos por gramo en heces (HPG) y diámetro de fibra (DF) en la raza Corriedale. El análisis incluyó 19547 corderos con datos fenotípicos y 454, 711 y 383 genotipados con paneles o chips de 170, 507 y 50K SNP, respectivamente. Los EBV y GEBV se estimaron con un modelo animal univariado que incluyó los efectos fijos:grupo contemporáneo, tipo de nacimiento y edad de la madre,y edad al registro como covariable. Se consideraron pesos diferenciales (?) en la matriz de relaciones genómicas, identificándose los modelos con mejor ajuste con el criterio de información de Akaike (AIC), que fueron utili-zados para la estimación de los GEBV y sus precisiones. El uso de ?solo impactó en el ajuste con paneles de baja densidad. No se encontraron diferencias en las precisiones promedio de la población total. En cambio, en el subgrupo de animales genotipados las precisiones aumentaron 2% con 170 SNP (?=0.25), y con 507 SNP 5% (?=0.5) y 14% (?=0.75). No hubo diferencias en precisiones de los EBV y los GEBV de DF. Los resultados muestran que es posible aumentar las precisiones de los GEBV aun con paneles de baja densidad. -.-.-.-.-.-.-.-.-.-.-.-..-RESUMO.- Uma alternativa para o controle de nematóidesgastrointestinais (NGI) é a seleção genética. O objetivo deste trabalho foi comparar as precisões dos valores genéticos estimados (EBV) e dos EBVs genômicos (GEBV) da contagem de ovos por grama de fezes (OPG) e diâmetro de fibra (DF) na raça Corriedale. Aanálise incluiu 19547 cordeiros com dados e 454, 711 e 383 genotipados de 170, 507 e 50K SNPs, respectivamente. Foram estimados os EBV e GEBV com um modelo animal univariado que incluiu efeitos fixos de grupo contemporâneo, tipo de nascimento e idade da mãe e idade no registro (covariável). Pesos diferenciais (?) foram considerados na matriz de relações genômicas, identificando os modelos com melhor ajuste via critério de informação de Akaike (AIC), os quais foram utilizados para estimar o GEBV e suas precisões. O uso de ?=0.75 somente impactou no ajuste com painéis de baixa densidade. Não foram encontradas diferenças na precisão média da população total. Em contraste, no subgrupo de animais genotipados as precisões aumentaram 2% com 170 SNPs (?=0.25), e com 507 SNPs 5% (?=0.5) e 14% (?=0.75). Não houve diferenças na precisão de EBV e GEBV de DF. Os resultados mostram que é possível aumentar a precisão de GEBVs mesmo que se utilizem painéis de baixa densidade.
650 $aCORRIEDALE
653 $aAccuracy
653 $aFEC
653 $aGEBV
653 $aHPG
653 $aOPG
653 $aPrecisão
653 $aPrecisión
700 1 $aNAVAJAS, E.
700 1 $aVERA, B.
700 1 $aCIAPPESONI, G.
773 $tAgrociencia Uruguay, 2022, vol. 26, number 2, article e998. doi: https://doi.org/10.31285/AGRO.26.998
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Registro original : |
INIA Las Brujas (LB) |
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Registro completo
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Biblioteca (s) : |
INIA Tacuarembó. |
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Fecha actual : |
22/04/2021 |
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Actualizado : |
09/06/2021 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Circulación / Nivel : |
Internacional - -- |
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Autor : |
MIRABALLES, C.; BARROS, A.T.M.; LUCAS, M.; KLAFKE, G.M.; DOMINGUES, L.N.; RIET-CORREA, F. |
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Afiliación : |
MÓNICA CECILIA MIRABALLES FERRER, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; ANTONIO THADEU M. BARROS, Embrapa Beef Cattle, Campo Grande, MS, Brazil.; MARTÍN LUCAS FONSECA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay.; GUILHERME M. KLAFKE, Centro de Pesquisa em Saúde Animal, Instituto de Pesquisas Veterinárias Desidério Finamor, Brazil.; LUÍSA N. DOMINGUES, USDA-ARS Knipling-Bushland U.S. Livestock Insects Research Laboratory, 2700 Fredericksburg Road, Kerrville, TX, USA 78028.; FRANKLIN RIET-CORREA AMARAL, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
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Título : |
Susceptibility of field populations of Haematobia irritans to fipronil in Uruguay. |
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Fecha de publicación : |
2021 |
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Fuente / Imprenta : |
Pesquisa Veterinaria Brasileira, 2021, Volume 41, Article number e06821. OPEN ACCESS. Doi: https://doi.org/10.1590/1678-5150-PVB-6821 |
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DOI : |
10.1590/1678-5150-PVB-6821 |
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Idioma : |
Inglés |
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Notas : |
Article history: 1 Received on December 4, 2020. Accepted for publication on December 16, 2020. Acknowledgments.- We would like to acknowledge Gonzalo Escayola, the
ranchers, the staff of the slaughterhouse and the interns who collaborated on this study. This work was supported by the ?Instituto Nacional de Investigación Agropecuaria? (INIA), Uruguay, project number CL 35. |
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Contenido : |
Fipronil was registered in Uruguay in 1997, and, since then, it has been used for the control of Haematobia irritans irritans and Rhipicephalus microplus. The susceptibility of H. irritants to this drug has not been evaluated. Therefore, the goal of the present study was to evaluate the resistance of H. irritans to fipronil. Additionally, a survey was carried out with the farmers to evaluate the use of fipronil for H. irritans control in the ranches where the flies came from. For the bioassays, 31 field populations of H. irritans were exposed to 10 concentrations of fipronil (3.2-16.0?g.cm2 ), and their LC50 values were calculated using probit analysis. A bioassay was performed with horn flies from the susceptible colony maintained at the USDA-ARS Knipling-Bushland U.S. Livestock Insects Research Laboratory for comparison and calculation of resistance ratios (RRs). All 31 field populations surveyed in the study were susceptible to fipronil, with resistance ratios ranging from <0.5 to 2.2. Four populations with RRs >1 did not differ significantly from the susceptible strain. A single population showed an RR >2.2. Overall, the survey shows that fipronil was mostly used for R. microplus control, and in only three ranches, which were free of R. microplus, was fipronil used for horn fly control. Seventeen farmers did not use fipronil at all in the last three years. It is concluded that, in Uruguay, field populations of horn flies remain susceptible to fipronil. |
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Palabras claves : |
BIOASSAYS; FIPRONIL; HEMATOBIA IRRITANS; INTEGRATED PEST MANAGEMENT. |
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Thesagro : |
URUGUAY. |
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Asunto categoría : |
A50 Investigación agraria |
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URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/15509/1/Miraballes-et-al-2021.pdf
https://www.scielo.br/j/pvb/a/s7F8dxtqmS8DRGQvK6ZFSpx/?lang=en&format=pdf
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Marc : |
LEADER 02688naa a2200265 a 4500
001 1061990
005 2021-06-09
008 2021 bl uuuu u00u1 u #d
024 7 $a10.1590/1678-5150-PVB-6821$2DOI
100 1 $aMIRABALLES, C.
245 $aSusceptibility of field populations of Haematobia irritans to fipronil in Uruguay.$h[electronic resource]
260 $c2021
500 $aArticle history: 1 Received on December 4, 2020. Accepted for publication on December 16, 2020. Acknowledgments.- We would like to acknowledge Gonzalo Escayola, the ranchers, the staff of the slaughterhouse and the interns who collaborated on this study. This work was supported by the ?Instituto Nacional de Investigación Agropecuaria? (INIA), Uruguay, project number CL 35.
520 $aFipronil was registered in Uruguay in 1997, and, since then, it has been used for the control of Haematobia irritans irritans and Rhipicephalus microplus. The susceptibility of H. irritants to this drug has not been evaluated. Therefore, the goal of the present study was to evaluate the resistance of H. irritans to fipronil. Additionally, a survey was carried out with the farmers to evaluate the use of fipronil for H. irritans control in the ranches where the flies came from. For the bioassays, 31 field populations of H. irritans were exposed to 10 concentrations of fipronil (3.2-16.0?g.cm2 ), and their LC50 values were calculated using probit analysis. A bioassay was performed with horn flies from the susceptible colony maintained at the USDA-ARS Knipling-Bushland U.S. Livestock Insects Research Laboratory for comparison and calculation of resistance ratios (RRs). All 31 field populations surveyed in the study were susceptible to fipronil, with resistance ratios ranging from <0.5 to 2.2. Four populations with RRs >1 did not differ significantly from the susceptible strain. A single population showed an RR >2.2. Overall, the survey shows that fipronil was mostly used for R. microplus control, and in only three ranches, which were free of R. microplus, was fipronil used for horn fly control. Seventeen farmers did not use fipronil at all in the last three years. It is concluded that, in Uruguay, field populations of horn flies remain susceptible to fipronil.
650 $aURUGUAY
653 $aBIOASSAYS
653 $aFIPRONIL
653 $aHEMATOBIA IRRITANS
653 $aINTEGRATED PEST MANAGEMENT
700 1 $aBARROS, A.T.M.
700 1 $aLUCAS, M.
700 1 $aKLAFKE, G.M.
700 1 $aDOMINGUES, L.N.
700 1 $aRIET-CORREA, F.
773 $tPesquisa Veterinaria Brasileira, 2021, Volume 41, Article number e06821. OPEN ACCESS. Doi: https://doi.org/10.1590/1678-5150-PVB-6821
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