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Biblioteca (s) : |
INIA Las Brujas. |
Fecha : |
31/03/2021 |
Actualizado : |
31/03/2021 |
Tipo de producción científica : |
Trabajos en Congresos/Conferencias |
Autor : |
CARDOSO, F. F.; SOLLERO, B. P.; COMIN, H. B.; GOMES, C. G.; ROSO, V. M.; HIGA, R. H.; CAETANO, A. R.; YOKOO, M. J.; AGUILAR, I. |
Afiliación : |
FERNANDO F. CARDOSO, Embrapa Southern Region Animal Husbandry, Bagé; BRUNA P. SOLLERO, Embrapa Southern Region Animal Husbandry, Bagé; HELENA B. COMIN, Embrapa Southern Region Animal Husbandry, Bagé; CLAUDIA G GOMES, Embrapa Southern Region Animal Husbandry, Bagé; VANERLEI M. ROSO, Gensys Associated Consultants, Porto Alegre; ROBERTO H. HIGA, Embrapa Agriculture Informatics, Campinas; ALEXANDRE R. CAETANO, Embrapa Genetic Resources & Biotechnology, Brasilia, Brazil; MARCOS J. YOKOO, Embrapa Southern Region Animal Husbandry, Bagé; IGNACIO AGUILAR GARCIA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
Título : |
Accuracy of genomic prediction for tick resistance in Braford and Hereford cattle. |
Complemento del título : |
Volume Species Breeding: Beef cattle (Posters), 713. |
Fecha de publicación : |
2014 |
Fuente / Imprenta : |
In: Proceedings of the World Congress on Genetics Applied to Livestock Production, 10., Vancouver, BC, Canada, August 17-22, 2014. p.713. |
Idioma : |
Inglés |
Notas : |
Acknowledgments: Research supported by CNPq - National Council for Scientific and Technological Development grant 478992/2012-2, Embrapa - Brazilian Agricultural Research Corporation grants 02.09.07.004 and 01.11.07.002.07, and CAPES - Coordination for the Improvement of Higher Level Personnel grant PNPD 02645/09-2. Authors acknowledge the Delta G Connection for providing animals and data for this research. |
Contenido : |
ABSTRACT.
This work aimed to determine the accuracy and bias of genomic predictions of Braford (BO) and Hereford (HH) cattle genetic resistance to ticks. Repeated 10,673 tick counts were obtained from 3,435 BO and 928 HH cattle from Delta G Connection breeding program. A subset of 2,803 BO and 652 HH samples were genotyped and 41,045 markers remained after quality control. Log transformed records were adjusted by a pedigree repeatability model to estimate breeding values (EBV), subsequently used to obtained deregressed EBV. Data were split into five subsets for cross-validation using k-means and random clustering. Genomic predictions with moderate accuracies (0.38 to 0.60) were obtained by best unbiased linear prediction (GBLUP), BayesB and single step GBLUP indicating that, despite some bias, genomic selection could be used as practical tool to improve cattle genetic resistance to ticks. |
Palabras claves : |
Beef cattle; Genomic selection; Health; Tick resistance. |
Asunto categoría : |
L10 Genética y mejoramiento animal |
URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/15450/1/Cardoso-et-al.-2014.-WCGALP.pdf
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Marc : |
LEADER 02130nam a2200265 a 4500 001 1061926 005 2021-03-31 008 2014 bl uuuu u01u1 u #d 100 1 $aCARDOSO, F. F. 245 $aAccuracy of genomic prediction for tick resistance in Braford and Hereford cattle.$h[electronic resource] 260 $aIn: Proceedings of the World Congress on Genetics Applied to Livestock Production, 10., Vancouver, BC, Canada, August 17-22, 2014. p.713.$c2014 500 $aAcknowledgments: Research supported by CNPq - National Council for Scientific and Technological Development grant 478992/2012-2, Embrapa - Brazilian Agricultural Research Corporation grants 02.09.07.004 and 01.11.07.002.07, and CAPES - Coordination for the Improvement of Higher Level Personnel grant PNPD 02645/09-2. Authors acknowledge the Delta G Connection for providing animals and data for this research. 520 $aABSTRACT. This work aimed to determine the accuracy and bias of genomic predictions of Braford (BO) and Hereford (HH) cattle genetic resistance to ticks. Repeated 10,673 tick counts were obtained from 3,435 BO and 928 HH cattle from Delta G Connection breeding program. A subset of 2,803 BO and 652 HH samples were genotyped and 41,045 markers remained after quality control. Log transformed records were adjusted by a pedigree repeatability model to estimate breeding values (EBV), subsequently used to obtained deregressed EBV. Data were split into five subsets for cross-validation using k-means and random clustering. Genomic predictions with moderate accuracies (0.38 to 0.60) were obtained by best unbiased linear prediction (GBLUP), BayesB and single step GBLUP indicating that, despite some bias, genomic selection could be used as practical tool to improve cattle genetic resistance to ticks. 653 $aBeef cattle 653 $aGenomic selection 653 $aHealth 653 $aTick resistance 700 1 $aSOLLERO, B. P. 700 1 $aCOMIN, H. B. 700 1 $aGOMES, C. G. 700 1 $aROSO, V. M. 700 1 $aHIGA, R. H. 700 1 $aCAETANO, A. R. 700 1 $aYOKOO, M. J. 700 1 $aAGUILAR, I.
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| Acceso al texto completo restringido a Biblioteca INIA Las Brujas. Por información adicional contacte bibliolb@inia.org.uy. |
Registro completo
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Biblioteca (s) : |
INIA Las Brujas. |
Fecha actual : |
09/04/2021 |
Actualizado : |
09/04/2021 |
Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
Circulación / Nivel : |
Internacional - -- |
Autor : |
CEZIMBRA, I.M.; DE ALBUQUERQUE NUNES, P.A.; DE SOUZA FILHO, W.; TISCHLER, M.R.; GENRO, T.C.M.; BAYER, C.; SAVIAN, J.V.; BONNET, O.J.F.; SOUSSANA, J.-F.; DE FACCIO CARVALHO, P.C. |
Afiliación : |
IAN MACHADO CEZIMBRA, Department of Forage Plants and Agrometeorology, Federal University of Rio Grande do Sul (UFRGS), RS, Brazil; PEDRO ARTHUR DE ALBUQUERQUE NUNES, Department of Forage Plants and Agrometeorology, Federal University of Rio Grande do Sul (UFRGS), RS, Brazil; WILLIAM DE SOUZA FILHO, Department of Forage Plants and Agrometeorology, Federal University of Rio Grande do Sul (UFRGS), RS, Brazil; MARCELO RITZEL TISCHLER, Department of Forage Plants and Agrometeorology, Federal University of Rio Grande do Sul (UFRGS), RS, Brazil; TERESA CRISTINA MORAES GENRO, Brazilian Agricultural Research Corporation (Embrapa - CPPSUL), Bagé, Brazil; CIMÉLIO BAYER, Department of Soil Science, Federal University of Rio Grande do Sul, RS, Brazil; JEAN VICTOR SAVIAN, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; OLIVIER JEAN FRANÇOIS BONNET, Department of Forage Plants and Agrometeorology, Federal University of Rio Grande do Sul (UFRGS), RS Brazil; JEAN-FRANÇOIS SOUSSANA, Unité Mixte de Recherche sur l'Écosystème Prairial (UREP), Institut National de Recherche pour l'Agriculture, l'Alimentation et l'Environnement (INRAE), Clermont-Ferrand, France; PAULO CÉSAR DE FACCIO CARVALHO, Department of Forage Plants and Agrometeorology, Federal University of Rio Grande do Sul (UFRGS), RS, Brazil. |
Título : |
Potential of grazing management to improve beef cattle production and mitigate methane emissions in native grasslands of the Pampa biome. |
Fecha de publicación : |
2021 |
Fuente / Imprenta : |
Science of the Total Environment, 2021, Volume 780, Article number 146582. Doi: https://doi.org/https://doi.org/10.1016/j.scitotenv.2021.146582 |
ISSN : |
0048-9697 |
DOI : |
10.1016/j.scitotenv.2021.146582 |
Idioma : |
Inglés |
Notas : |
Article history: Received 19 August 2020; Received in revised form 15 March 2021; Accepted 15 March 2021; Available online 19 March 2021.
Editor: Elena Paoletti. |
Contenido : |
ABSTRACT.
We tested the hypothesis that improving sward structure through adjustments in forage allowance results in greater forage intake and live weight (LW) gains by beef cattle and lower CH4 emissions per unit LW gain and unit area in a native grassland ecosystem of the Pampa biome. The experiment was carried out during 2012 and 2013 in southern Brazil. The experimental design was a randomized complete block with two replicates. Treatments consisted of five contrasting forage allowances of a native grassland managed under continuous stocking: 4, 8, 8?12, 12, and 16 kg of dry matter (DM) 100 kg LW−1 day−1 (or % LW). The 8?12% LW treatment had a variable forage allowance of 8% LW in spring and 12% LW in summer, autumn, and winter. Forage allowance was controlled by changes in stocking rate (kg LW ha−1). Average daily gain (kg LW day−1) was high for forage allowances of 12 and 16% LW but decreased at 8%, reaching the lowest value at 4% LW treatment (p < 0.001). Live weight gain ha−1 year−1 was the greatest at forage allowance of 8?12% LW (p < 0.001). Forage DM intake peaked at a forage allowance of 12% LW (p = 0.005). Individual CH4 emissions remained constant around 150 g day−1 for the two highest forage allowances and decreased to 118 and 107 g day−1 under forage allowances of 8 and 4% LW, respectively (p = 0.002). Emissions per unit LW gain and unit area were driven by animal productivity changes and decreased with increasing forage allowance (p = 0.001 and p = 0.040, respectively). We propose that the combination of 8% LW forage allowance during spring and 12% LW during the rest of the year should be targeted to best balance animal production and environmental impact in the Pampa biome.
© 2021 Elsevier B.V. MenosABSTRACT.
We tested the hypothesis that improving sward structure through adjustments in forage allowance results in greater forage intake and live weight (LW) gains by beef cattle and lower CH4 emissions per unit LW gain and unit area in a native grassland ecosystem of the Pampa biome. The experiment was carried out during 2012 and 2013 in southern Brazil. The experimental design was a randomized complete block with two replicates. Treatments consisted of five contrasting forage allowances of a native grassland managed under continuous stocking: 4, 8, 8?12, 12, and 16 kg of dry matter (DM) 100 kg LW−1 day−1 (or % LW). The 8?12% LW treatment had a variable forage allowance of 8% LW in spring and 12% LW in summer, autumn, and winter. Forage allowance was controlled by changes in stocking rate (kg LW ha−1). Average daily gain (kg LW day−1) was high for forage allowances of 12 and 16% LW but decreased at 8%, reaching the lowest value at 4% LW treatment (p < 0.001). Live weight gain ha−1 year−1 was the greatest at forage allowance of 8?12% LW (p < 0.001). Forage DM intake peaked at a forage allowance of 12% LW (p = 0.005). Individual CH4 emissions remained constant around 150 g day−1 for the two highest forage allowances and decreased to 118 and 107 g day−1 under forage allowances of 8 and 4% LW, respectively (p = 0.002). Emissions per unit LW gain and unit area were driven by animal productivity changes and decreased with increasi... Presentar Todo |
Palabras claves : |
Climate change; Grazing intensity; Greenhouse gases; Livestock. |
Asunto categoría : |
F01 Cultivo |
Marc : |
LEADER 02998naa a2200313 a 4500 001 1061964 005 2021-04-09 008 2021 bl uuuu u00u1 u #d 022 $a0048-9697 024 7 $a10.1016/j.scitotenv.2021.146582$2DOI 100 1 $aCEZIMBRA, I.M. 245 $aPotential of grazing management to improve beef cattle production and mitigate methane emissions in native grasslands of the Pampa biome.$h[electronic resource] 260 $c2021 500 $aArticle history: Received 19 August 2020; Received in revised form 15 March 2021; Accepted 15 March 2021; Available online 19 March 2021. Editor: Elena Paoletti. 520 $aABSTRACT. We tested the hypothesis that improving sward structure through adjustments in forage allowance results in greater forage intake and live weight (LW) gains by beef cattle and lower CH4 emissions per unit LW gain and unit area in a native grassland ecosystem of the Pampa biome. The experiment was carried out during 2012 and 2013 in southern Brazil. The experimental design was a randomized complete block with two replicates. Treatments consisted of five contrasting forage allowances of a native grassland managed under continuous stocking: 4, 8, 8?12, 12, and 16 kg of dry matter (DM) 100 kg LW−1 day−1 (or % LW). The 8?12% LW treatment had a variable forage allowance of 8% LW in spring and 12% LW in summer, autumn, and winter. Forage allowance was controlled by changes in stocking rate (kg LW ha−1). Average daily gain (kg LW day−1) was high for forage allowances of 12 and 16% LW but decreased at 8%, reaching the lowest value at 4% LW treatment (p < 0.001). Live weight gain ha−1 year−1 was the greatest at forage allowance of 8?12% LW (p < 0.001). Forage DM intake peaked at a forage allowance of 12% LW (p = 0.005). Individual CH4 emissions remained constant around 150 g day−1 for the two highest forage allowances and decreased to 118 and 107 g day−1 under forage allowances of 8 and 4% LW, respectively (p = 0.002). Emissions per unit LW gain and unit area were driven by animal productivity changes and decreased with increasing forage allowance (p = 0.001 and p = 0.040, respectively). We propose that the combination of 8% LW forage allowance during spring and 12% LW during the rest of the year should be targeted to best balance animal production and environmental impact in the Pampa biome. © 2021 Elsevier B.V. 653 $aClimate change 653 $aGrazing intensity 653 $aGreenhouse gases 653 $aLivestock 700 1 $aDE ALBUQUERQUE NUNES, P.A. 700 1 $aDE SOUZA FILHO, W. 700 1 $aTISCHLER, M.R. 700 1 $aGENRO, T.C.M. 700 1 $aBAYER, C. 700 1 $aSAVIAN, J.V. 700 1 $aBONNET, O.J.F. 700 1 $aSOUSSANA, J.-F. 700 1 $aDE FACCIO CARVALHO, P.C. 773 $tScience of the Total Environment, 2021, Volume 780, Article number 146582. Doi: https://doi.org/https://doi.org/10.1016/j.scitotenv.2021.146582
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