Fecha/hora: 04/06/2024 09:40:23

Biblioteca(s): 	INIA Las Brujas.	
Tipo de la producción científica: 	Artículos en Revistas Indexadas Internacionales	
Circulación/Nivel: 	A - 1	
Fecha corriente: 	21/02/2014	
Fecha de la última actualización: 	18/12/2018	
Autoria: 	AGUILAR, I.; MISZTAL, I.	
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.	
Título: 	Technical Note: Recursive Algorithm for Inbreeding Coefficients Assuming Nonzero Inbreeding of Unknown Parents.	
Año de publicación: 	2008	
Fuente/Imprenta: 	Journal of Dairy Science, 2008, 91 (4): 1669-1672.	
ISSN: 	0022-0302	
DOI: 	10.3168/jds.2007-0575	
Idioma: 	Inglés	
Notas: 	Article history: Received August 3, 2007. // Accepted December 17, 2007.	
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.	
Palabras-Clave: 	INBREEDING COEFFICIENT; RECURSIVE ALGORITHM; UNKNOWN PARENT.	
Categoría del tema: 	--	
URL: 	http://www.ainfo.inia.uy/digital/bitstream/item/12201/1/Technical-note-recursive-algorithm-for-i.pdf	
Registro original: 	INIA Las Brujas (LB)	
Ejemplares: 	LB - (12839-1) - PXI - AP - PP - PP/JR. DAIRY SCIENCE/2008 -  -  - DIS