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Registro completo
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Biblioteca (s) : |
INIA Las Brujas. |
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Fecha : |
21/02/2014 |
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Actualizado : |
18/12/2018 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Autor : |
AGUILAR, I.; MISZTAL, I. |
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Afiliación : |
IGNACIO AGUILAR GARCIA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; Animal and Dairy Science Department, University of Georgia, United States.; I. MISZTAL, Animal and Dairy Science Department, University of Georgia, United States. |
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Título : |
Technical Note: Recursive Algorithm for Inbreeding Coefficients Assuming Nonzero Inbreeding of Unknown Parents. |
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Fecha de publicación : |
2008 |
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Fuente / Imprenta : |
Journal of Dairy Science, 2008, 91 (4): 1669-1672. |
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ISSN : |
0022-0302 |
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DOI : |
10.3168/jds.2007-0575 |
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Idioma : |
Inglés |
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Notas : |
Article history: Received August 3, 2007. // Accepted December 17, 2007. |
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Contenido : |
ABSTRACT.
A recursive algorithm to calculate inbreeding coefficients was modified to account for nonzero inbreeding of unknown parents. The modification was done by changing one part of a recursive formula in which the inbreeding of an animal with at least one unknown parent is not zero and replacing it by the mean inbreeding of all animals born the same year. The algorithm is iterative. Testing involved 17 million US Holsteins. Convergence was reached in 6 rounds. The computing time per round was 4 min, twice as fast as the VanRaden algorithm based on the tabular method. The recursive algorithm is very simple; however, it requires that the recursion takes into account the order of animals. After a simple modification, the algorithm provides a very good approximation of inbreeding when the pedigree is unordered.
© American Dairy Science Association, 2008. |
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Palabras claves : |
INBREEDING COEFFICIENT; RECURSIVE ALGORITHM; UNKNOWN PARENT. |
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Asunto categoría : |
-- |
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URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/12201/1/Technical-note-recursive-algorithm-for-i.pdf
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Marc : |
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022 $a0022-0302
024 7 $a10.3168/jds.2007-0575$2DOI
100 1 $aAGUILAR, I.
245 $aTechnical Note$bRecursive Algorithm for Inbreeding Coefficients Assuming Nonzero Inbreeding of Unknown Parents.
260 $c2008
500 $aArticle history: Received August 3, 2007. // Accepted December 17, 2007.
520 $aABSTRACT. A recursive algorithm to calculate inbreeding coefficients was modified to account for nonzero inbreeding of unknown parents. The modification was done by changing one part of a recursive formula in which the inbreeding of an animal with at least one unknown parent is not zero and replacing it by the mean inbreeding of all animals born the same year. The algorithm is iterative. Testing involved 17 million US Holsteins. Convergence was reached in 6 rounds. The computing time per round was 4 min, twice as fast as the VanRaden algorithm based on the tabular method. The recursive algorithm is very simple; however, it requires that the recursion takes into account the order of animals. After a simple modification, the algorithm provides a very good approximation of inbreeding when the pedigree is unordered. © American Dairy Science Association, 2008.
653 $aINBREEDING COEFFICIENT
653 $aRECURSIVE ALGORITHM
653 $aUNKNOWN PARENT
700 1 $aMISZTAL, I.
773 $tJournal of Dairy Science, 2008, 91 (4): 1669-1672.
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INIA Las Brujas (LB) |
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| Registros recuperados : 217 | |
| 7. |  | REBOLLO, I.; AGUILAR, I.; ROSAS, J.E. Comparison of conventional and GBLUP Genome-Wide Association mapping of cold tolerance in advanced rice breeding populations. [Abstract] + [Poster]. In: International Temperate Rice Conference (7., 2020, Pelotas, RS), Science & Innovation: feeding a world of 10 billion people: proceedings. Pelotas RS, Brasil, February 9-12, 2020. Brasília, DF : Embrapa, 2020.| Tipo: Abstracts/Resúmenes |
| Biblioteca(s): INIA Treinta y Tres. |
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| 15. | | AGUILAR, I.; RAVAGNOLO, O.; PRAVIA, M.I. Evaluación genética poblacional raza Braford. Unidad Experimental La Magnolia, 3 abril, 2009. ln: INIA TACUAREMBÓ. Soluciones tecnológicas para la raza Braford: gira técnica. En el marco del CONGRESO MUNDIAL BRAFORD, 4., Punta del Este, Uruguay, 2009. Tacuarembó: INIA, 2009. p. 42-44.| Tipo: Trabajos en Congresos/Conferencias |
| Biblioteca(s): INIA Tacuarembó. |
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| 18. | | SILVEIRA, N.F.; RAVAGNOLO, O.; AGUILAR, I. Longevity in genetic evaluation of Holstein cows in Uruguay. [664]. Part 37 - Bovine dairy - genetic evaluation methods. In: Proceedings of the World Congress on Genetics Applied to Livestock Production (WCGALP), 12., Rotterdam, the Netherlands, 3-8 July 2022. doi: https://doi.org/10.3920/978-90-8686-940-4_664 2741-2744. Article history: Published online: February 9, 2023. -- Corresponding author: N.F. Silveira, email: nferraz@inia.org.uy| Tipo: Trabajos en Congresos/Conferencias |
| Biblioteca(s): INIA Las Brujas. |
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| Registros recuperados : 217 | |
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