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Biblioteca (s) : |
INIA Treinta y Tres. |
Fecha : |
18/04/2017 |
Actualizado : |
15/10/2019 |
Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
Autor : |
HERD, R.M.; VELAZCO, J.I.; ARTHUR, P.F.; HEGARTY, R.F. |
Afiliación : |
JOSÉ IGNACIO VELAZCO DE LOS REYES, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
Título : |
Associations among methane emission traits measured in the feedlot and in respiration chambers in Angus cattle to vary in feed efficiency. |
Fecha de publicación : |
2016 |
Fuente / Imprenta : |
Journal of Animal Science. 2016, v.94(11), p. 4882-4891 |
DOI : |
10.2527/JAS2016-0613 |
Idioma : |
Inglés |
Notas : |
Article history: Received May 7, 2016. Accepted September 7, 2016. |
Contenido : |
Abstract:
The objective of the study was to evaluate associations among animal performance and methane emission traits under feedlot conditions and in respiration chambers in Angus cattle bred to vary in residual feed intake (RFI), which is a measure of feed efficiency. Fifty-nine cattle were tested for feedlot RFI, of which 41 had methane production recorded on an ad libitum grain-based ration in the feedlot, 59 on a restricted grain-based ration in respiration chambers, and 57 on a restricted roughage ration in respiration chambers. The cattle became older and heavier as they went through the different phases of the experiment, but their feed intake (expressed as DMI) and daily emission of enteric methane (methane production rate; MPR) did not increase proportionally, as feed offered was restricted in the respiration chamber tests. Methane emissions by individual animals relative to their DMI were calculated as methane yield (MY; MPR/DMI) and as 2 measures of residual methane production (RMP and RMP), which were calculated as the difference between measured MPR and that predicted from feed intake by 2 different equations. Within each test regime, MPR was positively correlated ( = 0.28 to 0.61) with DMI. Phenotypic correlations for MY, RMP, and RMP between the feedlot test and the restricted grain test ( = 0.40 to 0.43) and between the restricted grain test and the restricted roughage test were moderate ( = 0.36 to 0.41) and moderate to strong between the feedlot test and the restricted roughage test ( = 0.54 to 0.58). These results indicate that the rankings of animals for methane production relative to feed consumed are relatively stable over the 3 test phases. Feedlot feed conversion ratio and RFI were not correlated with MPR in the feedlot test and grain-based chamber test but were negatively correlated with MPR in the chamber roughage test ( = -0.31 and -0.37). Both were negatively correlated with MY and RMP in the feedlot test ( = -0.42 to -0.54) and subsequent chamber roughage test ( = -0.27 to -0.49). Midparent estimated breeding values for RFI tended to be negatively correlated with MY and RMP in the feedlot test ( = -0.27 and -0.27) and were negatively correlated with MY, RMP, and RMP in the chamber roughage test ( = -0.33 to -0.36). These results showed that in young growing cattle, lower RFI was associated with higher MY, RMP, and RMP but had no significant association with MPR. MenosAbstract:
The objective of the study was to evaluate associations among animal performance and methane emission traits under feedlot conditions and in respiration chambers in Angus cattle bred to vary in residual feed intake (RFI), which is a measure of feed efficiency. Fifty-nine cattle were tested for feedlot RFI, of which 41 had methane production recorded on an ad libitum grain-based ration in the feedlot, 59 on a restricted grain-based ration in respiration chambers, and 57 on a restricted roughage ration in respiration chambers. The cattle became older and heavier as they went through the different phases of the experiment, but their feed intake (expressed as DMI) and daily emission of enteric methane (methane production rate; MPR) did not increase proportionally, as feed offered was restricted in the respiration chamber tests. Methane emissions by individual animals relative to their DMI were calculated as methane yield (MY; MPR/DMI) and as 2 measures of residual methane production (RMP and RMP), which were calculated as the difference between measured MPR and that predicted from feed intake by 2 different equations. Within each test regime, MPR was positively correlated ( = 0.28 to 0.61) with DMI. Phenotypic correlations for MY, RMP, and RMP between the feedlot test and the restricted grain test ( = 0.40 to 0.43) and between the restricted grain test and the restricted roughage test were moderate ( = 0.36 to 0.41) and moderate to strong between the feedlot test and t... Presentar Todo |
Palabras claves : |
CATTLE; EFICIENCIA ALIMENTICIA; FEED EFFICIENCY; GAS METANO; GASES DE EFECTO INVERNADERO; GREENHOUSE GAS; METHANE. |
Thesagro : |
BOVINOS. |
Asunto categoría : |
T01 Polución |
Marc : |
LEADER 03329naa a2200277 a 4500 001 1057076 005 2019-10-15 008 2016 bl uuuu u00u1 u #d 024 7 $a10.2527/JAS2016-0613$2DOI 100 1 $aHERD, R.M. 245 $aAssociations among methane emission traits measured in the feedlot and in respiration chambers in Angus cattle to vary in feed efficiency.$h[electronic resource] 260 $c2016 500 $aArticle history: Received May 7, 2016. Accepted September 7, 2016. 520 $aAbstract: The objective of the study was to evaluate associations among animal performance and methane emission traits under feedlot conditions and in respiration chambers in Angus cattle bred to vary in residual feed intake (RFI), which is a measure of feed efficiency. Fifty-nine cattle were tested for feedlot RFI, of which 41 had methane production recorded on an ad libitum grain-based ration in the feedlot, 59 on a restricted grain-based ration in respiration chambers, and 57 on a restricted roughage ration in respiration chambers. The cattle became older and heavier as they went through the different phases of the experiment, but their feed intake (expressed as DMI) and daily emission of enteric methane (methane production rate; MPR) did not increase proportionally, as feed offered was restricted in the respiration chamber tests. Methane emissions by individual animals relative to their DMI were calculated as methane yield (MY; MPR/DMI) and as 2 measures of residual methane production (RMP and RMP), which were calculated as the difference between measured MPR and that predicted from feed intake by 2 different equations. Within each test regime, MPR was positively correlated ( = 0.28 to 0.61) with DMI. Phenotypic correlations for MY, RMP, and RMP between the feedlot test and the restricted grain test ( = 0.40 to 0.43) and between the restricted grain test and the restricted roughage test were moderate ( = 0.36 to 0.41) and moderate to strong between the feedlot test and the restricted roughage test ( = 0.54 to 0.58). These results indicate that the rankings of animals for methane production relative to feed consumed are relatively stable over the 3 test phases. Feedlot feed conversion ratio and RFI were not correlated with MPR in the feedlot test and grain-based chamber test but were negatively correlated with MPR in the chamber roughage test ( = -0.31 and -0.37). Both were negatively correlated with MY and RMP in the feedlot test ( = -0.42 to -0.54) and subsequent chamber roughage test ( = -0.27 to -0.49). Midparent estimated breeding values for RFI tended to be negatively correlated with MY and RMP in the feedlot test ( = -0.27 and -0.27) and were negatively correlated with MY, RMP, and RMP in the chamber roughage test ( = -0.33 to -0.36). These results showed that in young growing cattle, lower RFI was associated with higher MY, RMP, and RMP but had no significant association with MPR. 650 $aBOVINOS 653 $aCATTLE 653 $aEFICIENCIA ALIMENTICIA 653 $aFEED EFFICIENCY 653 $aGAS METANO 653 $aGASES DE EFECTO INVERNADERO 653 $aGREENHOUSE GAS 653 $aMETHANE 700 1 $aVELAZCO, J.I. 700 1 $aARTHUR, P.F. 700 1 $aHEGARTY, R.F. 773 $tJournal of Animal Science. 2016$gv.94(11), p. 4882-4891
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Registro completo
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Biblioteca (s) : |
INIA Treinta y Tres. |
Fecha actual : |
21/02/2014 |
Actualizado : |
14/06/2018 |
Tipo de producción científica : |
Documentos |
Autor : |
BLANCO, P.H.; GAGGERO, T.; AVILA, S.; LAVECCHIA, A.; MARCHESI, C.; PÉREZ DE VIDA, F.; CASALES, L. |
Afiliación : |
PEDRO HORACIO BLANCO BARRAL, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; MARIO GAGGERO QUINTANA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; MARIFLOR STELLA AVILA SILVA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; ANDRES PASCUAL LAVECCHIA GONZALEZ, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; CLAUDIA ELIZABETH MARCHESI GYERMAN, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; FERNANDO BLAS PEREZ DE VIDA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; LUIS ALBERTO CASALES SOSA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
Título : |
Mejoramiento genético. |
Fecha de publicación : |
2002 |
Fuente / Imprenta : |
ln: INIA TREINTA Y TRES. Arroz: resultados experimentales 2001-2002. Treinta y Tres (Uruguay): INIA, 2002. |
Páginas : |
cap. 4, p. 1-31. |
Serie : |
(INIA Serie Actividades de Difusión; 292) |
Idioma : |
Español |
Contenido : |
CONTIENE:
Actividades del proyecto. Evaluación final de cultivares - épocas de siembra. Evaluacion final de cultivares - resistencia a enfermedades del tallo. Resumen L3000. valuación de semienanos tropicales. Evaluación de líneas avanzadas - E4. |
Thesagro : |
ARROZ; FITOMEJORAMIENTO. |
Asunto categoría : |
F30 Genética vegetal y fitomejoramiento |
URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/10293/1/Ad-292-cap-4-p.1-31.pdf
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Marc : |
LEADER 00927naa a2200241 a 4500 001 1031410 005 2018-06-14 008 2002 bl uuuu u00u1 u #d 100 1 $aBLANCO, P.H. 245 $aMejoramiento genético. 260 $c2002 300 $acap. 4, p. 1-31. 490 $a(INIA Serie Actividades de Difusión; 292) 520 $aCONTIENE: Actividades del proyecto. Evaluación final de cultivares - épocas de siembra. Evaluacion final de cultivares - resistencia a enfermedades del tallo. Resumen L3000. valuación de semienanos tropicales. Evaluación de líneas avanzadas - E4. 650 $aARROZ 650 $aFITOMEJORAMIENTO 700 1 $aGAGGERO, T. 700 1 $aAVILA, S. 700 1 $aLAVECCHIA, A. 700 1 $aMARCHESI, C. 700 1 $aPÉREZ DE VIDA, F. 700 1 $aCASALES, L. 773 $tln: INIA TREINTA Y TRES. Arroz: resultados experimentales 2001-2002. Treinta y Tres (Uruguay): INIA, 2002.
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