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Biblioteca (s) : |
INIA Las Brujas. |
Fecha : |
21/02/2014 |
Actualizado : |
09/10/2019 |
Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
Autor : |
AGUILAR, I.; TSURUTA, S.; MISZTAL, I. |
Afiliación : |
IGNACIO AGUILAR GARCIA, Instituto Nacional de Investigación Agropecuaria (INIA), Uruguay; S. TSURUTA, Animal and Dairy Science Department, University of Georgia, Athens, United State; I. MISZTAL, Animal and Dairy Science Department, University of Georgia, Athens, United States. |
Título : |
Computing options for multiple-trait test-day random regression models while accounting for heat tolerance. |
Fecha de publicación : |
2010 |
Fuente / Imprenta : |
Journal of Animal Breeding and Genetics, 2010, v.127, no.3, p.235-241. |
ISSN : |
0931-2668 |
DOI : |
10.1111/j.1439-0388.2009.00842.x |
Idioma : |
Inglés |
Notas : |
Article history: Received: 24 December 2008 / Accepted: 08 September 2009. |
Contenido : |
ABSTRACT.
Data included 90 242 799 test day records from first, second and third parities of 5 402 484 Holstein cows and 9 326 754 animals in the pedigree. Additionally, daily temperature humidity indexes (THI) from 202 weather stations were available. The fixed effects included herd test day, age at calving, milking frequency and days in milk classes (DIM). Random effects were additive genetic, permanent environment and herd-year and were fit as random regressions. Covariates included linear splines with four knots at 5, 50, 200 and 305 DIM and a function of THI. Mixed model equations were solved using an iteration on data program with a preconditioned conjugate gradient algorithm. Preconditioners used were diagonal (D), block diagonal due to traits (BT) and block diagonal due to traits and correlated effects (BTCORR). One run included BT with a 'diagonalized' model in which the random effects were reparameterized for diagonal (co)variance matrices among traits (BTDIAG). Memory requirements were 8.7 Gb for D, 10.4 Gb for BT and BTDIAG, and 24.3 Gb for BTCORR. Computing times (rounds) were 14 days (952) for D, 10.7 days (706) for BT, 7.7 days (494) for BTDIAG and 4.6 days (289) for BTCORR. The convergence pattern was strongly influenced by the choice of fixed effects. When sufficient memory is available, the option BTCORR is the fastest and simplest to implement; the next efficient method, BTDIAG, requires additional steps for diagonalization and back-diagonalization.
© 2009 Blackwell Verlag GmbH. MenosABSTRACT.
Data included 90 242 799 test day records from first, second and third parities of 5 402 484 Holstein cows and 9 326 754 animals in the pedigree. Additionally, daily temperature humidity indexes (THI) from 202 weather stations were available. The fixed effects included herd test day, age at calving, milking frequency and days in milk classes (DIM). Random effects were additive genetic, permanent environment and herd-year and were fit as random regressions. Covariates included linear splines with four knots at 5, 50, 200 and 305 DIM and a function of THI. Mixed model equations were solved using an iteration on data program with a preconditioned conjugate gradient algorithm. Preconditioners used were diagonal (D), block diagonal due to traits (BT) and block diagonal due to traits and correlated effects (BTCORR). One run included BT with a 'diagonalized' model in which the random effects were reparameterized for diagonal (co)variance matrices among traits (BTDIAG). Memory requirements were 8.7 Gb for D, 10.4 Gb for BT and BTDIAG, and 24.3 Gb for BTCORR. Computing times (rounds) were 14 days (952) for D, 10.7 days (706) for BT, 7.7 days (494) for BTDIAG and 4.6 days (289) for BTCORR. The convergence pattern was strongly influenced by the choice of fixed effects. When sufficient memory is available, the option BTCORR is the fastest and simplest to implement; the next efficient method, BTDIAG, requires additional steps for diagonalization and back-diagonalization.
© 2... Presentar Todo |
Thesagro : |
GANADERÍA; GANADO DE LECHE. |
Asunto categoría : |
L01 Ganadería |
Marc : |
LEADER 02234naa a2200205 a 4500 001 1012846 005 2019-10-09 008 2010 bl uuuu u00u1 u #d 022 $a0931-2668 024 7 $a10.1111/j.1439-0388.2009.00842.x$2DOI 100 1 $aAGUILAR, I. 245 $aComputing options for multiple-trait test-day random regression models while accounting for heat tolerance.$h[electronic resource] 260 $c2010 500 $aArticle history: Received: 24 December 2008 / Accepted: 08 September 2009. 520 $aABSTRACT. Data included 90 242 799 test day records from first, second and third parities of 5 402 484 Holstein cows and 9 326 754 animals in the pedigree. Additionally, daily temperature humidity indexes (THI) from 202 weather stations were available. The fixed effects included herd test day, age at calving, milking frequency and days in milk classes (DIM). Random effects were additive genetic, permanent environment and herd-year and were fit as random regressions. Covariates included linear splines with four knots at 5, 50, 200 and 305 DIM and a function of THI. Mixed model equations were solved using an iteration on data program with a preconditioned conjugate gradient algorithm. Preconditioners used were diagonal (D), block diagonal due to traits (BT) and block diagonal due to traits and correlated effects (BTCORR). One run included BT with a 'diagonalized' model in which the random effects were reparameterized for diagonal (co)variance matrices among traits (BTDIAG). Memory requirements were 8.7 Gb for D, 10.4 Gb for BT and BTDIAG, and 24.3 Gb for BTCORR. Computing times (rounds) were 14 days (952) for D, 10.7 days (706) for BT, 7.7 days (494) for BTDIAG and 4.6 days (289) for BTCORR. The convergence pattern was strongly influenced by the choice of fixed effects. When sufficient memory is available, the option BTCORR is the fastest and simplest to implement; the next efficient method, BTDIAG, requires additional steps for diagonalization and back-diagonalization. © 2009 Blackwell Verlag GmbH. 650 $aGANADERÍA 650 $aGANADO DE LECHE 700 1 $aTSURUTA, S. 700 1 $aMISZTAL, I. 773 $tJournal of Animal Breeding and Genetics, 2010$gv.127, no.3, p.235-241.
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INIA Las Brujas (LB) |
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Registro completo
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Biblioteca (s) : |
INIA Las Brujas. |
Fecha actual : |
21/02/2014 |
Actualizado : |
23/06/2021 |
Tipo de producción científica : |
Documentos |
Autor : |
MONTOSSI, F.; SAN JULIÁN, R.; BANCHERO, G.; GANZÁBAL, A.; RISSO, D.; DE BARBIERI, I.; DIGHIERO, A.; DE MATTOS, D.; DE LOS CAMPOS, G.; MEDEROS, A.; CASTRO, L.E.; ROBAINA, R.; ABRAHAM, D. |
Afiliación : |
FABIO MARCELO MONTOSSI PORCHILE, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; ROBERTO SAN JULIAN SANCHEZ, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; GEORGGET ELIZABETH BANCHERO HUNZIKER, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; ANDRES RICARDO GANZÁBAL PLANINICH, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; DIEGO FERNANDO RISSO RIET, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; LUIS IGNACIO DE BARBIERI ETCHEBERRY, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; ALEJANDRO DIGHIERO FASCIOLI, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; DANIEL DE MATTOS, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; GUSTAVO DE LOS CAMPOS, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; AMERICA ESTHER MEDEROS SILVEIRA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
Título : |
Sistemas de engorde y calidad de canales para corderos pesados en el Uruguay. |
Fecha de publicación : |
2001 |
Fuente / Imprenta : |
ln: Instituto Nacional de Investigación Agropecuaria, Uruguay (INIA); Instituto Nacional de Carnes, Uruguay (INAC). Investigación aplicada a la cadena agroindustrial cárnica, avances obtenidos: carne ovina de calidad (1998 - 2001). La Estanzuela, Colonia (Uruguay): INIA La Estanzuela, 2001. |
Páginas : |
p. 59-67, anexo p. 1-20 |
Serie : |
(INIA Serie Actividades de Difusión ; 253) |
Idioma : |
Español |
Thesagro : |
CANAL ANIMAL; CORDERO; ENGORDE. |
Asunto categoría : |
-- |
URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/5158/1/SAD-253-18429120510150606.pdf;agroindustrial#page=62
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Marc : |
LEADER 01109naa a2200313 a 4500 001 1007419 005 2021-06-23 008 2001 bl uuuu u00u1 u #d 100 1 $aMONTOSSI, F. 245 $aSistemas de engorde y calidad de canales para corderos pesados en el Uruguay. 260 $c2001 300 $ap. 59-67, anexo p. 1-20 490 $a(INIA Serie Actividades de Difusión ; 253) 650 $aCANAL ANIMAL 650 $aCORDERO 650 $aENGORDE 700 1 $aSAN JULIÁN, R. 700 1 $aBANCHERO, G. 700 1 $aGANZÁBAL, A. 700 1 $aRISSO, D. 700 1 $aDE BARBIERI, I. 700 1 $aDIGHIERO, A. 700 1 $aDE MATTOS, D. 700 1 $aDE LOS CAMPOS, G. 700 1 $aMEDEROS, A. 700 1 $aCASTRO, L.E. 700 1 $aROBAINA, R. 700 1 $aABRAHAM, D. 773 $tln: Instituto Nacional de Investigación Agropecuaria, Uruguay (INIA); Instituto Nacional de Carnes, Uruguay (INAC). Investigación aplicada a la cadena agroindustrial cárnica, avances obtenidos: carne ovina de calidad (1998 - 2001). La Estanzuela, Colonia (Uruguay): INIA La Estanzuela, 2001.
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