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Registro completo
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Biblioteca (s) : |
INIA La Estanzuela; INIA Las Brujas; INIA Tacuarembó. |
Fecha : |
21/02/2014 |
Actualizado : |
09/02/2018 |
Tipo de producción científica : |
Capítulo en Libro Técnico-Científico |
Autor : |
REBUFFO, M.; GARCIA, J.A. |
Afiliación : |
MONICA IRENE REBUFFO GFELLER, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; JAIME ANTONIO GARCIA RADICH, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
Título : |
Importancia del ciclo de las variedades forrajeras en los sistemas intensivos |
Complemento del título : |
I. Actualización de información tecnológica sobre pasturas sembradas |
Fecha de publicación : |
1997 |
Fuente / Imprenta : |
In: RESTAINO, E.; INDARTE, E. (Eds.). Pasturas y Producción Animal en Areas de Ganadería Intensiva Montevideo (Uruguay): INIA, 1997. |
Páginas : |
p. 9-15 |
Serie : |
(INIA Serie Técnica ; 15) |
ISBN : |
9974-38-003-0 |
ISSN : |
1688-9266 |
Idioma : |
Español |
Thesagro : |
ALFALFA; FESTUCA; LOLIUM; PHALARIS; PLANTAS FORRAJERAS; TRIFOLIUM PRATENSE; TRIFOLIUM REPENS; URUGUAY; VARIEDADES. |
Asunto categoría : |
-- |
URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/8335/1/111219220807114211-p.9-15.pdf
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Marc : |
LEADER 00818naa a2200277 a 4500 001 1006432 005 2018-02-09 008 1997 bl uuuu u00u1 u #d 020 $a9974-38-003-0 022 $a1688-9266 100 1 $aREBUFFO, M. 245 $aImportancia del ciclo de las variedades forrajeras en los sistemas intensivos 260 $c1997 300 $ap. 9-15 490 $a(INIA Serie Técnica ; 15) 650 $aALFALFA 650 $aFESTUCA 650 $aLOLIUM 650 $aPHALARIS 650 $aPLANTAS FORRAJERAS 650 $aTRIFOLIUM PRATENSE 650 $aTRIFOLIUM REPENS 650 $aURUGUAY 650 $aVARIEDADES 700 1 $aGARCIA, J.A. 773 $tIn: RESTAINO, E.; INDARTE, E. (Eds.). Pasturas y Producción Animal en Areas de Ganadería Intensiva Montevideo (Uruguay): INIA, 1997.
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Registro original : |
INIA Las Brujas (LB) |
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Registro completo
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Biblioteca (s) : |
INIA Las Brujas. |
Fecha actual : |
14/06/2022 |
Actualizado : |
14/06/2022 |
Tipo de producción científica : |
Trabajos en Congresos/Conferencias |
Autor : |
DARTAYETE, A.; AGUILAR, I.; GIMENO, D. |
Afiliación : |
A. DARTAYETE, Private consultant.; IGNACIO AGUILAR GARCIA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; DIEGO GIMENO, Secretariado Uruguayo de la Lana, Montevideo, Uruguay. |
Título : |
Estimation of heritabilities and genetic correlations between weights and carcass traits in beef cattle in Uruguay. [764]. |
Fecha de publicación : |
2018 |
Fuente / Imprenta : |
In: Proceedings of the World Congress on Genetics Applied to Livestock Production, 11., Aotea Centre Auckland, New Zealand: WCGALP, ICAR, 11-16 feb 2018. |
Idioma : |
Inglés |
Contenido : |
SUMMARY - A total of 1058 animals from 23 different breed combinations (86% steers, 14% heifers) were slaughtered with an average age of 2½ years between 1996 and 2001. Heritabilities and genetic correlations were estimated for the following traits: weight at 12, 15 and 18 months of age, slaughter and carcass weights (hot carcass weight, pistola weight, valuable cuts weight), ribeye area, subcutaneous fat thickness and subcutaneous fat thickness at P8. The posterior mean of the heritability for live weights increases with age, from 0.33 at 12mo to 0.58 at the slaughter weight. The hot carcass weight had the highest posterior mean of 0.64 followed by the pistola weight (0.57) and valuable cuts weight (0.34). The lowest estimates of heritability were for the fat traits; 0.22 for subcutaneous fat thickness and 0.18 for fat thickness at P8. Hot carcass weight presented high genetic correlations (> 0.7) with the live weight traits, while the pistola weight and the valuable cuts weight had practically equivalent correlation estimates with the live weight traits (> 0.65). This is supported by the genetic correlations obtained between the hot carcass weight, the pistola cut weight and the valuable cuts weight, which were 0.94 to 0.96. These results determine the possibility of using live weight measurements as selection criteria to improve the hot carcass weight, so that the pistola cut weight and the valuable cuts will be improved. Likewise, the ribeye area would also be improved, while the subcutaneous fat thickness would not be substantially modified. This would not be an inconvenience at present, considering the data provided by the industry regarding adequate
fat levels according to their demand, as well as the current conditions of production in the primary sector. MenosSUMMARY - A total of 1058 animals from 23 different breed combinations (86% steers, 14% heifers) were slaughtered with an average age of 2½ years between 1996 and 2001. Heritabilities and genetic correlations were estimated for the following traits: weight at 12, 15 and 18 months of age, slaughter and carcass weights (hot carcass weight, pistola weight, valuable cuts weight), ribeye area, subcutaneous fat thickness and subcutaneous fat thickness at P8. The posterior mean of the heritability for live weights increases with age, from 0.33 at 12mo to 0.58 at the slaughter weight. The hot carcass weight had the highest posterior mean of 0.64 followed by the pistola weight (0.57) and valuable cuts weight (0.34). The lowest estimates of heritability were for the fat traits; 0.22 for subcutaneous fat thickness and 0.18 for fat thickness at P8. Hot carcass weight presented high genetic correlations (> 0.7) with the live weight traits, while the pistola weight and the valuable cuts weight had practically equivalent correlation estimates with the live weight traits (> 0.65). This is supported by the genetic correlations obtained between the hot carcass weight, the pistola cut weight and the valuable cuts weight, which were 0.94 to 0.96. These results determine the possibility of using live weight measurements as selection criteria to improve the hot carcass weight, so that the pistola cut weight and the valuable cuts will be improved. Likewise, the ribeye area would also be improved,... Presentar Todo |
Palabras claves : |
Beef cattle; Carcass; Fat; Genetic correlation; Heritability; Weights. |
Asunto categoría : |
L10 Genética y mejoramiento animal |
URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/16519/1/dartayete-et-al-2018.pdf
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Marc : |
LEADER 02519nam a2200205 a 4500 001 1063294 005 2022-06-14 008 2018 bl uuuu u01u1 u #d 100 1 $aDARTAYETE, A. 245 $aEstimation of heritabilities and genetic correlations between weights and carcass traits in beef cattle in Uruguay. [764].$h[electronic resource] 260 $aIn: Proceedings of the World Congress on Genetics Applied to Livestock Production, 11., Aotea Centre Auckland, New Zealand: WCGALP, ICAR, 11-16 feb 2018.$c2018 520 $aSUMMARY - A total of 1058 animals from 23 different breed combinations (86% steers, 14% heifers) were slaughtered with an average age of 2½ years between 1996 and 2001. Heritabilities and genetic correlations were estimated for the following traits: weight at 12, 15 and 18 months of age, slaughter and carcass weights (hot carcass weight, pistola weight, valuable cuts weight), ribeye area, subcutaneous fat thickness and subcutaneous fat thickness at P8. The posterior mean of the heritability for live weights increases with age, from 0.33 at 12mo to 0.58 at the slaughter weight. The hot carcass weight had the highest posterior mean of 0.64 followed by the pistola weight (0.57) and valuable cuts weight (0.34). The lowest estimates of heritability were for the fat traits; 0.22 for subcutaneous fat thickness and 0.18 for fat thickness at P8. Hot carcass weight presented high genetic correlations (> 0.7) with the live weight traits, while the pistola weight and the valuable cuts weight had practically equivalent correlation estimates with the live weight traits (> 0.65). This is supported by the genetic correlations obtained between the hot carcass weight, the pistola cut weight and the valuable cuts weight, which were 0.94 to 0.96. These results determine the possibility of using live weight measurements as selection criteria to improve the hot carcass weight, so that the pistola cut weight and the valuable cuts will be improved. Likewise, the ribeye area would also be improved, while the subcutaneous fat thickness would not be substantially modified. This would not be an inconvenience at present, considering the data provided by the industry regarding adequate fat levels according to their demand, as well as the current conditions of production in the primary sector. 653 $aBeef cattle 653 $aCarcass 653 $aFat 653 $aGenetic correlation 653 $aHeritability 653 $aWeights 700 1 $aAGUILAR, I. 700 1 $aGIMENO, D.
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