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| Registros recuperados : 4 | |
| 1. |  | PLATERO, P.; CHALKING, D.; FERREIRA, G. F. DE; PORCILE, V. CRILUMERINO$. Proyecto Fpta 350. Montevideo (UY): INIA, 2023. 45 p. (Serie FPTA-INIA; 99). Proyecto FPTA 350: "Implementación de alternativas tecnológicas que incrementen la competitividad de los sistemas de producción ovino-laneros de la región de basalto".
Período de Ejecución: Mayo 2017 - Mayo 2021. Institución ejecutora:...| Biblioteca(s): INIA Las Brujas. |
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| 3. | | DE BARBIERI, I.; NAVAJAS, E.; RAMOS, Z.; FERREIRA, G. F. DE; VELAZCO, J.I.; CIAPPESONI, G. Feed conversion efficiency does not negatively affect young sheep and ewe performance. (Original Research article). Sec. Precision Livestock Farming. Frontiers in Animal Science, December 2024, volume 5. https://doi.org/10.3389/fanim.2024.1480928 --OPEN ACCESS. Article history: Received 14 August 2024, Accepted 20 November 2024, Published 20 December 2024. -- Edited by: Karl-Heinz Südekum, University of Bonn, Germany. -- Reviewed by: Georg Terler, Agricultural Research and Education Center...| Biblioteca(s): INIA Las Brujas. |
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| 4. | | SILVEIRA, F. A.; DE BARBIERI, I.; COBUCI, J. A.; MARQUES, C. B.; FERREIRA, G. F. DE; CIAPPESONI, G. Residual feed intake for Australian Merino sheep estimated in less than 42 days of trial. Livestock Science, 2022, Volume 258, Article 104889. OPEN ACCESS. doi: https://doi.org/10.1016/j.livsci.2022.104889 Article history: Received 16 August 2021, Revised 18 February 2022, Accepted 28 February 2022, Available online 3 March 2022, Version of Record 8 March 2022. --
Corresponding author: Fernando Amarilho-Silveira, mailto:...| Biblioteca(s): INIA Las Brujas. |
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 | Acceso al texto completo restringido a Biblioteca INIA Treinta y Tres. Por información adicional contacte bibliott@inia.org.uy. |
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Registro completo
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Biblioteca (s) : |
INIA Treinta y Tres. |
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Fecha actual : |
05/04/2019 |
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Actualizado : |
15/10/2019 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Circulación / Nivel : |
-- - -- |
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Autor : |
HERD, R. M.; VELAZCO, J.I.; SMITH, H.; ARTHUR, P. F.; HINE, B.; ODDY, H.; DOBOS, R. C.; HEGARTY, R. S. |
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Afiliación : |
ROBERT M. HERD, NSW Department of Primary Industries, Livestock Industries Centre. Environmental and Rural Science, University of New England; JOSÉ IGNACIO VELAZCO DE LOS REYES, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. Environmental and Rural Science, University of New England.; HELEN SMITH, Local Land Services Agency; PAUL F. ARTHUR, NSW Department of Primary Industries; BRAD HINE, CSIRO Agriculture and Food, F.D McMaster Laboratory; HUTTON ODDY, NSW Department of Primary Industries, Livestock Industries Centre; ROBIN C. DOBOS, NSW Department of Primary Industries, Livestock Industries Centre; ROGER S. HEGARTY, Environmental and Rural Science, University of New England. |
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Título : |
Genetic variation in residual feed intake is associated with body composition, behavior, rumen, heat production, hematology, and immune competence traits in Angus cattle. |
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Fecha de publicación : |
2019 |
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Fuente / Imprenta : |
Journal of Animal Science: 2019, skz077, Corrected Proof, Available online 20 february 2019. In Press. |
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DOI : |
10.1093/jas/skz077 |
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Idioma : |
Inglés |
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Notas : |
Article history: Received: 05 November 2018//Revision Received: 04 February 2019// Accepted: 20 February 2019. |
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Contenido : |
This experiment was to evaluate a suite of biological traits likely to be associated with genetic variation in residual feed intake (RFI) in Angus cattle. Twenty nine steers and 30 heifers bred to be divergent in postweaning RFI (RFIp) and that differed in midparent RFIp-EBV (RFIp-EBVmp) by more than 2 kg DMI/d were used in this study. A 1-unit (1 kg DM/d) decrease in RFIp-EBVmp was accompanied by a 0.08 kg (SE = 0.03; P < 0.05) increase in ADG, a 0.58 kg/d (0.17; P < 0.01) decrease in DMI, a 0.89 kg/kg (0.22; P < 0.001) decrease in FCR, and a 0.62 kg/d (0.12; P < 0.001) decrease in feedlot RFI (RFIf). Ultrasonically scanned depths of subcutaneous fat at the rib and rump sites, measured at the start and end of the RFI test, all had strong positive correlations with RFIp-EBVmp, DMI, and RFIf (all r values ?0.5 and P < 0.001). Variation in RFIp-EBVmp was significantly correlated (P < 0.05) with flight speed (r = ?0.32), number of visits to feed bins (r = 0.45), and visits to exhaled-emission monitors (r = ?0.27), as well as the concentrations of propionate (r = ?0.32) and valerate (r = ?0.31) in rumen fluid, white blood cell (r = ?0.51), lymphocyte (r = ?0.43), and neutrophil (r = ?0.31) counts in blood. RFIp-EBVmp was also correlated with the cellular immune response to vaccination (r = 0.25; P < 0.1) and heat production in fasted cattle (r = ?0.46; P < 0.001). Traits that explained significant variation (P < 0.05) in DMI over the RFI test were midtest metabolic-BW (44.7%), rib fat depth at the end of test (an additional 18%), number of feeder visits (additional 5.7%), apparent digestibility of the ration by animals (additional 2.4%) and white blood-cell count (2.1%), and the cellular immune response to vaccine injection (additional 1.1%; P < 0.1), leaving ~23% of the variation in DMI unexplained. The same traits (BW excluded) explained 33%, 12%, 3.6%, 3.7%, and 3.1%, and together explained 57% of the variation in RFIf. This experiment showed that genetic variation in RFI was accompanied by variation in estimated body composition, behavior, rumen, fasted heat production, hematology, and immune competence traits, and that variation in feedlot DMI and RFIf was due to differences in BW, scanned fatness, and many other factors in these cattle fed ad libitum and able to display any innate differences in appetite, temperament, feeding behavior, and activity. MenosThis experiment was to evaluate a suite of biological traits likely to be associated with genetic variation in residual feed intake (RFI) in Angus cattle. Twenty nine steers and 30 heifers bred to be divergent in postweaning RFI (RFIp) and that differed in midparent RFIp-EBV (RFIp-EBVmp) by more than 2 kg DMI/d were used in this study. A 1-unit (1 kg DM/d) decrease in RFIp-EBVmp was accompanied by a 0.08 kg (SE = 0.03; P < 0.05) increase in ADG, a 0.58 kg/d (0.17; P < 0.01) decrease in DMI, a 0.89 kg/kg (0.22; P < 0.001) decrease in FCR, and a 0.62 kg/d (0.12; P < 0.001) decrease in feedlot RFI (RFIf). Ultrasonically scanned depths of subcutaneous fat at the rib and rump sites, measured at the start and end of the RFI test, all had strong positive correlations with RFIp-EBVmp, DMI, and RFIf (all r values ?0.5 and P < 0.001). Variation in RFIp-EBVmp was significantly correlated (P < 0.05) with flight speed (r = ?0.32), number of visits to feed bins (r = 0.45), and visits to exhaled-emission monitors (r = ?0.27), as well as the concentrations of propionate (r = ?0.32) and valerate (r = ?0.31) in rumen fluid, white blood cell (r = ?0.51), lymphocyte (r = ?0.43), and neutrophil (r = ?0.31) counts in blood. RFIp-EBVmp was also correlated with the cellular immune response to vaccination (r = 0.25; P < 0.1) and heat production in fasted cattle (r = ?0.46; P < 0.001). Traits that explained significant variation (P < 0.05) in DMI over the RFI test were midtest metabolic-BW (44.7%), r... Presentar Todo |
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Palabras claves : |
BODY COMPOSITION; CATTLE; DIGESTIBILITY; FEED EFFICIENCY; IMMUNE COMPETENCE. |
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Thesagro : |
PRODUCCIÓN ANIMAL. |
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Asunto categoría : |
L51 Fisiología Animal - Nutrición |
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Marc : |
LEADER 03460naa a2200301 a 4500
001 1059701
005 2019-10-15
008 2019 bl uuuu u00u1 u #d
024 7 $a10.1093/jas/skz077$2DOI
100 1 $aHERD, R. M.
245 $aGenetic variation in residual feed intake is associated with body composition, behavior, rumen, heat production, hematology, and immune competence traits in Angus cattle.$h[electronic resource]
260 $c2019
500 $aArticle history: Received: 05 November 2018//Revision Received: 04 February 2019// Accepted: 20 February 2019.
520 $aThis experiment was to evaluate a suite of biological traits likely to be associated with genetic variation in residual feed intake (RFI) in Angus cattle. Twenty nine steers and 30 heifers bred to be divergent in postweaning RFI (RFIp) and that differed in midparent RFIp-EBV (RFIp-EBVmp) by more than 2 kg DMI/d were used in this study. A 1-unit (1 kg DM/d) decrease in RFIp-EBVmp was accompanied by a 0.08 kg (SE = 0.03; P < 0.05) increase in ADG, a 0.58 kg/d (0.17; P < 0.01) decrease in DMI, a 0.89 kg/kg (0.22; P < 0.001) decrease in FCR, and a 0.62 kg/d (0.12; P < 0.001) decrease in feedlot RFI (RFIf). Ultrasonically scanned depths of subcutaneous fat at the rib and rump sites, measured at the start and end of the RFI test, all had strong positive correlations with RFIp-EBVmp, DMI, and RFIf (all r values ?0.5 and P < 0.001). Variation in RFIp-EBVmp was significantly correlated (P < 0.05) with flight speed (r = ?0.32), number of visits to feed bins (r = 0.45), and visits to exhaled-emission monitors (r = ?0.27), as well as the concentrations of propionate (r = ?0.32) and valerate (r = ?0.31) in rumen fluid, white blood cell (r = ?0.51), lymphocyte (r = ?0.43), and neutrophil (r = ?0.31) counts in blood. RFIp-EBVmp was also correlated with the cellular immune response to vaccination (r = 0.25; P < 0.1) and heat production in fasted cattle (r = ?0.46; P < 0.001). Traits that explained significant variation (P < 0.05) in DMI over the RFI test were midtest metabolic-BW (44.7%), rib fat depth at the end of test (an additional 18%), number of feeder visits (additional 5.7%), apparent digestibility of the ration by animals (additional 2.4%) and white blood-cell count (2.1%), and the cellular immune response to vaccine injection (additional 1.1%; P < 0.1), leaving ~23% of the variation in DMI unexplained. The same traits (BW excluded) explained 33%, 12%, 3.6%, 3.7%, and 3.1%, and together explained 57% of the variation in RFIf. This experiment showed that genetic variation in RFI was accompanied by variation in estimated body composition, behavior, rumen, fasted heat production, hematology, and immune competence traits, and that variation in feedlot DMI and RFIf was due to differences in BW, scanned fatness, and many other factors in these cattle fed ad libitum and able to display any innate differences in appetite, temperament, feeding behavior, and activity.
650 $aPRODUCCIÓN ANIMAL
653 $aBODY COMPOSITION
653 $aCATTLE
653 $aDIGESTIBILITY
653 $aFEED EFFICIENCY
653 $aIMMUNE COMPETENCE
700 1 $aVELAZCO, J.I.
700 1 $aSMITH, H.
700 1 $aARTHUR, P. F.
700 1 $aHINE, B.
700 1 $aODDY, H.
700 1 $aDOBOS, R. C.
700 1 $aHEGARTY, R. S.
773 $tJournal of Animal Science: 2019, skz077, Corrected Proof, Available online 20 february 2019. In Press.
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