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Registro completo
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Biblioteca (s) : |
INIA Las Brujas. |
Fecha : |
21/02/2014 |
Actualizado : |
03/10/2019 |
Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
Autor : |
RAVAGNOLO, O.; MISZTAL, I. |
Afiliación : |
OLGA RAVAGNOLO GUMILA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; I. MISZTAL, University of Georgia, United States. |
Título : |
Effect of heat stress on nonreturn rate in holstein cows: Genetic analyses. |
Fecha de publicación : |
2002 |
Fuente / Imprenta : |
Journal of Dairy Science, 2002, 85 (11): 3092-3100. |
ISSN : |
0022-0302 |
DOI : |
10.3168/jds.S0022-0302(02)74396-8 |
Idioma : |
Inglés |
Notas : |
Article history: Received August 13, 2001. / Accepted October 16, 2002. |
Contenido : |
ABSTRACT.
The genetic component in heat tolerance for nonreturn rate in Holsteins was estimated using an animal linear model augmented by a random regression on a temperature-humidity index (THI). Data consisted of 18,059 nonreturn rates at 45, 60, and 90 d after insemination and 81,674 first-parity test-day milk yields from 78 herds in Florida. The THI on the day of insemination or test day was added to each record. Only first-insemination records were used. The model for nonreturn rate included the effects of herd-year-season, age, days in milk, milk yield, THI as a covariable, regular additive effect, and random regression on THI for heat-tolerance additive effect. With a single-trait model, heritability estimates for NR45, NR60, and NR90 at THI = 70 for first-lactation cows were 0.006, 0.014, and 0.053, respectively. Genetic correlation between regular NR90 and heat tolerance was -0.95. A bivariate analysis for NR90 and test-day milk production yielded a correlation between regular merit and heat tolerance for NR90 of -0.35, substantially lower than by the univariate model, indicating a bias in the univariate estimates caused by ignored selection. The regular genetic correlation between NR90 and milk yield was -0.41. Genetic correlation between heat tolerance for NR90 and heat tolerance for milk yield was -0.04, indicating the need to separate selection.
© Copyright 2017 Elsevier B.V., All rights reserved. |
Palabras claves : |
Dairy cattle; Heat stress; Nonreturn rate; Temperature-humidity index. |
Asunto categoría : |
-- |
URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/13409/1/Jr.Dairy-Science.-2002.-1-s2.0-S0022030202743968-main.pdf
https://www.journalofdairyscience.org/article/S0022-0302(02)74396-8/pdf
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Marc : |
LEADER 02135naa a2200217 a 4500 001 1012855 005 2019-10-03 008 2002 bl uuuu u00u1 u #d 022 $a0022-0302 024 7 $a10.3168/jds.S0022-0302(02)74396-8$2DOI 100 1 $aRAVAGNOLO, O. 245 $aEffect of heat stress on nonreturn rate in holstein cows$bGenetic analyses.$h[electronic resource] 260 $c2002 500 $aArticle history: Received August 13, 2001. / Accepted October 16, 2002. 520 $aABSTRACT. The genetic component in heat tolerance for nonreturn rate in Holsteins was estimated using an animal linear model augmented by a random regression on a temperature-humidity index (THI). Data consisted of 18,059 nonreturn rates at 45, 60, and 90 d after insemination and 81,674 first-parity test-day milk yields from 78 herds in Florida. The THI on the day of insemination or test day was added to each record. Only first-insemination records were used. The model for nonreturn rate included the effects of herd-year-season, age, days in milk, milk yield, THI as a covariable, regular additive effect, and random regression on THI for heat-tolerance additive effect. With a single-trait model, heritability estimates for NR45, NR60, and NR90 at THI = 70 for first-lactation cows were 0.006, 0.014, and 0.053, respectively. Genetic correlation between regular NR90 and heat tolerance was -0.95. A bivariate analysis for NR90 and test-day milk production yielded a correlation between regular merit and heat tolerance for NR90 of -0.35, substantially lower than by the univariate model, indicating a bias in the univariate estimates caused by ignored selection. The regular genetic correlation between NR90 and milk yield was -0.41. Genetic correlation between heat tolerance for NR90 and heat tolerance for milk yield was -0.04, indicating the need to separate selection. © Copyright 2017 Elsevier B.V., All rights reserved. 653 $aDairy cattle 653 $aHeat stress 653 $aNonreturn rate 653 $aTemperature-humidity index 700 1 $aMISZTAL, I. 773 $tJournal of Dairy Science, 2002, 85 (11): 3092-3100.
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1. | | GEORGE, T.S.; GILES, C.D.; MENEZES-BLACKBURN, D.; CONDRON, L.M.; GAMA-RODRIGUES, A.C.; JAISI, D.; LANG, F.; NEAL, A.L.; STUTTER, M.I.; ALMEIDA, D.S.; BOL, R.; CABUGAO, K.G.; CELI, L.; COTNER, J.B.; FENG, G.; GOLL, D.S.; HALLAMA, M.; KRUEGER, J.; PLASSARD, C.; ROSLING, A.; DARCH, T.; FRASER, T.; GIESLER, R.; RICHARDSON, A.E.; TAMBURINI, F.; SHAND, C.A.; LUMSDON, D.G.; ZHANG, H.; BLACKWEL, M.S.A.; WEARING, C.; MEZELI, M.M.; ALMÅS, Å.R.; AUDETTE, Y.; BERTRAND, I.; BEYHAUT, E.; BOITT, G.; BRADSHAW, N.; BREARLEY, C.A.; BRUULSEMA, T.W.; CIAIS, P.; COZZOLINO, V.; DURAN, P.C.; MORA, M.L.; DE MENEZES, A.B.; DODD, R.J.; DUNFIELD, K.; ENGL, C.; FRAZÃO, J.J.; GARLAND, G.; GONZÁLEZ JIMÉNEZ, J.L.; GRACA, J.; GRANGER, S.J.; HARRISON, A.F.; HEUCK, C.; HOU, E.Q.; JOHNES, P.J.; KAISER, K.; KJÆR. H.A.; KLUMPP, E.; LAMB, A.L.; MACINTOSH, K.A.A; MACKAY, E.B.; MCGRATH, J.; MCINTYRE, C.; MCLAREN, T.; MÉSZÁROS, E.; MISSONG, A.; MOOSHAMMER, M.; NEGRÓN, C.P.; NELSON, L.A.; PFAHLER, V.; POBLETE-GRANT, P.; RANDALL, M.; SEGUEL, A.; SETH, K.; SMITH, A.C.; SMITS, M.M.; SOBARZO, J.A.; SPOHN, M.; TAWARAYA, K.; TIBBETT, M.; VORONEY, V.; WALLANDER, H.; WANG, L.; WASAKI, J.; HAYGARTH, P.M. Organic phosphorus in the terrestrial environment: a perspective on the state of the art and future priorities. Plant and Soil, 1 June 2018, Volume 427, Issue 1-2, Pages 191-208. Article history: Received: 28 April 2017 /Accepted: 17 August 2017 / Published online: 6 October 2017.
Update notice: Correction to: Organic phosphorus in the terrestrial environment: a perspective on the state of the art and future...Tipo: Artículos en Revistas Indexadas Internacionales | Circulación / Nivel : Internacional - -- |
Biblioteca(s): INIA Las Brujas. |
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