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 | Acceso al texto completo restringido a Biblioteca INIA Tacuarembó. Por información adicional contacte bibliotb@tb.inia.org.uy. |
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Registro completo
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Biblioteca (s) : |
INIA Tacuarembó. |
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Fecha : |
14/06/2016 |
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Actualizado : |
11/03/2021 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Autor : |
LUZARDO, S.; WOERNER, D.R.; GEORNARAS, I.; HESS, A.M.; BELK, K.E. |
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Afiliación : |
SANTIAGO FELIPE LUZARDO VILLAR, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; D. R. WOERNER, Center for Meat Safety and Quality, Colorado State University.; I. GEORNARAS, Center for Meat Safety and Quality, Colorado State University.; A. M. HESS, Department of Statistics, Colorado State University.; K. E. BELK, Center for Meat Safety and Quality, Colorado State University. |
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Título : |
Effect of packaging during storage time on retail display microbial population of beef strip loins from two different production systems. |
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Fecha de publicación : |
2016 |
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Fuente / Imprenta : |
Journal of Animal Science, 2016, v. 94, p. 2624-2636. Doi: https://doi.org/10.2527/jas.2016-0290 |
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DOI : |
10.2527/jas.2016-0290 |
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Idioma : |
Inglés |
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Notas : |
Article history: Received 08 January 2016; Accepted 25 March 2016; Published 01 June 2016. |
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Contenido : |
Two studies were conducted to evaluate the influence of packaging during storage of strip loins (to simulate export shipment) from steers fattened on intensive grazing systems (Uruguay; UR) or on a high-concentrate diet (United States; US) on retail display life microbial growth. Four or 3 different packaging treatments were applied to UR and US strip loin roasts or steaks during 35 d of storage; treatments were applied 7 d following slaughter. After 35 d of storage, the samples were evaluated during simulated retail display for up to 6 d. In Exp. 1, the treatments were vacuum packaging (VP), low-oxygen modified atmosphere packaging (MAP) with N2 and CO2 (MAP/CO2), low-oxygen MAP with N2 plus CO2 and CO, and VP plus an application of peroxyacetic acid (VP/PAA). In Exp. 2, block 1, the treatments were VP, MAP/CO, and VP with ethyl-N-lauroyl-l-arginate HCl incorporated into the film as an antimicrobial agent (VP/AM). In Exp. 2, block 2, the treatments were VP, MAP/CO2, MAP/CO, and VP/AM. For retail display, VP treatments were sliced and repackaged in PVC overwrap, and MAP treatments were actually PVC overwrap trays that were removed from a master bag with the prescribed gas treatment. Regardless of production system and packaging treatment, mesophilic and psychrotrophic counts of 6.9 to 7.8 and 6.7 to 7.7 log10 CFU/cm2, respectively, were obtained at the end of retail display, except for US samples in Exp. 2 (5.5 to 6.3 log10 CFU/cm2). No differences (P > 0.05) were detected for Pseudomonas spp. counts among packaging treatments in US steaks at the end of the display time in Exp.1, whereas, for UR steaks, both MAP treatments had lower (P < 0.05) Pseudomonas spp. counts than VP treatments. Pseudomonas spp. counts were lower (P < 0.05) in the MAP/CO2 treatment than in the other 3 treatments in US samples on d 6 of retail display for Exp. 2. At the end of display time and for Exp. 1, US steaks under MAP/CO had greater (P < 0.05) lactic acid bacteria (LAB) counts than samples in both VP treatments; no differences (P > 0.05) among packaging were detected for UR steaks. Both MAP and VP/AM treatments in the US samples for Exp. 2 had lower (P < 0.05) LAB counts on d 6 of display than the VP treatment, but no differences (P > 0.05)
were found among packaging treatments for the UR samples. To maximize shelf life (storage and display life) of exported fresh beef, it is critical to minimize bacterial populations during processing and storage. MenosTwo studies were conducted to evaluate the influence of packaging during storage of strip loins (to simulate export shipment) from steers fattened on intensive grazing systems (Uruguay; UR) or on a high-concentrate diet (United States; US) on retail display life microbial growth. Four or 3 different packaging treatments were applied to UR and US strip loin roasts or steaks during 35 d of storage; treatments were applied 7 d following slaughter. After 35 d of storage, the samples were evaluated during simulated retail display for up to 6 d. In Exp. 1, the treatments were vacuum packaging (VP), low-oxygen modified atmosphere packaging (MAP) with N2 and CO2 (MAP/CO2), low-oxygen MAP with N2 plus CO2 and CO, and VP plus an application of peroxyacetic acid (VP/PAA). In Exp. 2, block 1, the treatments were VP, MAP/CO, and VP with ethyl-N-lauroyl-l-arginate HCl incorporated into the film as an antimicrobial agent (VP/AM). In Exp. 2, block 2, the treatments were VP, MAP/CO2, MAP/CO, and VP/AM. For retail display, VP treatments were sliced and repackaged in PVC overwrap, and MAP treatments were actually PVC overwrap trays that were removed from a master bag with the prescribed gas treatment. Regardless of production system and packaging treatment, mesophilic and psychrotrophic counts of 6.9 to 7.8 and 6.7 to 7.7 log10 CFU/cm2, respectively, were obtained at the end of retail display, except for US samples in Exp. 2 (5.5 to 6.3 log10 CFU/cm2). No differences (P > 0.05) were detected ... Presentar Todo |
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Palabras claves : |
BEEF; BEEF PRODUCTION; MEAT; MICROBIAL GROWTH; PACKAGING; PRODUCTION SYSTEM; STRIP LOIN. |
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Thesagro : |
ALMACENAMIENTO; CARNE; ENVASADO. |
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Asunto categoría : |
Q01 Ciencia y tecnología de los alimentos |
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Marc : |
LEADER 03487naa a2200313 a 4500
001 1054907
005 2021-03-11
008 2016 bl uuuu u00u1 u #d
024 7 $a10.2527/jas.2016-0290$2DOI
100 1 $aLUZARDO, S.
245 $aEffect of packaging during storage time on retail display microbial population of beef strip loins from two different production systems.$h[electronic resource]
260 $c2016
500 $aArticle history: Received 08 January 2016; Accepted 25 March 2016; Published 01 June 2016.
520 $aTwo studies were conducted to evaluate the influence of packaging during storage of strip loins (to simulate export shipment) from steers fattened on intensive grazing systems (Uruguay; UR) or on a high-concentrate diet (United States; US) on retail display life microbial growth. Four or 3 different packaging treatments were applied to UR and US strip loin roasts or steaks during 35 d of storage; treatments were applied 7 d following slaughter. After 35 d of storage, the samples were evaluated during simulated retail display for up to 6 d. In Exp. 1, the treatments were vacuum packaging (VP), low-oxygen modified atmosphere packaging (MAP) with N2 and CO2 (MAP/CO2), low-oxygen MAP with N2 plus CO2 and CO, and VP plus an application of peroxyacetic acid (VP/PAA). In Exp. 2, block 1, the treatments were VP, MAP/CO, and VP with ethyl-N-lauroyl-l-arginate HCl incorporated into the film as an antimicrobial agent (VP/AM). In Exp. 2, block 2, the treatments were VP, MAP/CO2, MAP/CO, and VP/AM. For retail display, VP treatments were sliced and repackaged in PVC overwrap, and MAP treatments were actually PVC overwrap trays that were removed from a master bag with the prescribed gas treatment. Regardless of production system and packaging treatment, mesophilic and psychrotrophic counts of 6.9 to 7.8 and 6.7 to 7.7 log10 CFU/cm2, respectively, were obtained at the end of retail display, except for US samples in Exp. 2 (5.5 to 6.3 log10 CFU/cm2). No differences (P > 0.05) were detected for Pseudomonas spp. counts among packaging treatments in US steaks at the end of the display time in Exp.1, whereas, for UR steaks, both MAP treatments had lower (P < 0.05) Pseudomonas spp. counts than VP treatments. Pseudomonas spp. counts were lower (P < 0.05) in the MAP/CO2 treatment than in the other 3 treatments in US samples on d 6 of retail display for Exp. 2. At the end of display time and for Exp. 1, US steaks under MAP/CO had greater (P < 0.05) lactic acid bacteria (LAB) counts than samples in both VP treatments; no differences (P > 0.05) among packaging were detected for UR steaks. Both MAP and VP/AM treatments in the US samples for Exp. 2 had lower (P < 0.05) LAB counts on d 6 of display than the VP treatment, but no differences (P > 0.05) were found among packaging treatments for the UR samples. To maximize shelf life (storage and display life) of exported fresh beef, it is critical to minimize bacterial populations during processing and storage.
650 $aALMACENAMIENTO
650 $aCARNE
650 $aENVASADO
653 $aBEEF
653 $aBEEF PRODUCTION
653 $aMEAT
653 $aMICROBIAL GROWTH
653 $aPACKAGING
653 $aPRODUCTION SYSTEM
653 $aSTRIP LOIN
700 1 $aWOERNER, D.R.
700 1 $aGEORNARAS, I.
700 1 $aHESS, A.M.
700 1 $aBELK, K.E.
773 $tJournal of Animal Science, 2016$gv. 94, p. 2624-2636. Doi: https://doi.org/10.2527/jas.2016-0290
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INIA Tacuarembó (TBO) |
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| Acceso al texto completo restringido a Biblioteca INIA Las Brujas. Por información adicional contacte bibliolb@inia.org.uy. |
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Registro completo
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Biblioteca (s) : |
INIA Las Brujas. |
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Fecha actual : |
09/04/2021 |
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Actualizado : |
09/04/2021 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Circulación / Nivel : |
Internacional - -- |
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Autor : |
CEZIMBRA, I.M.; DE ALBUQUERQUE NUNES, P.A.; DE SOUZA FILHO, W.; TISCHLER, M.R.; GENRO, T.C.M.; BAYER, C.; SAVIAN, J.V.; BONNET, O.J.F.; SOUSSANA, J.-F.; DE FACCIO CARVALHO, P.C. |
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Afiliación : |
IAN MACHADO CEZIMBRA, Department of Forage Plants and Agrometeorology, Federal University of Rio Grande do Sul (UFRGS), RS, Brazil; PEDRO ARTHUR DE ALBUQUERQUE NUNES, Department of Forage Plants and Agrometeorology, Federal University of Rio Grande do Sul (UFRGS), RS, Brazil; WILLIAM DE SOUZA FILHO, Department of Forage Plants and Agrometeorology, Federal University of Rio Grande do Sul (UFRGS), RS, Brazil; MARCELO RITZEL TISCHLER, Department of Forage Plants and Agrometeorology, Federal University of Rio Grande do Sul (UFRGS), RS, Brazil; TERESA CRISTINA MORAES GENRO, Brazilian Agricultural Research Corporation (Embrapa - CPPSUL), Bagé, Brazil; CIMÉLIO BAYER, Department of Soil Science, Federal University of Rio Grande do Sul, RS, Brazil; JEAN VICTOR SAVIAN, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; OLIVIER JEAN FRANÇOIS BONNET, Department of Forage Plants and Agrometeorology, Federal University of Rio Grande do Sul (UFRGS), RS Brazil; JEAN-FRANÇOIS SOUSSANA, Unité Mixte de Recherche sur l'Écosystème Prairial (UREP), Institut National de Recherche pour l'Agriculture, l'Alimentation et l'Environnement (INRAE), Clermont-Ferrand, France; PAULO CÉSAR DE FACCIO CARVALHO, Department of Forage Plants and Agrometeorology, Federal University of Rio Grande do Sul (UFRGS), RS, Brazil. |
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Título : |
Potential of grazing management to improve beef cattle production and mitigate methane emissions in native grasslands of the Pampa biome. |
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Fecha de publicación : |
2021 |
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Fuente / Imprenta : |
Science of the Total Environment, 2021, Volume 780, Article number 146582. Doi: https://doi.org/https://doi.org/10.1016/j.scitotenv.2021.146582 |
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ISSN : |
0048-9697 |
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DOI : |
10.1016/j.scitotenv.2021.146582 |
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Idioma : |
Inglés |
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Notas : |
Article history: Received 19 August 2020; Received in revised form 15 March 2021; Accepted 15 March 2021; Available online 19 March 2021.
Editor: Elena Paoletti. |
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Contenido : |
ABSTRACT.
We tested the hypothesis that improving sward structure through adjustments in forage allowance results in greater forage intake and live weight (LW) gains by beef cattle and lower CH4 emissions per unit LW gain and unit area in a native grassland ecosystem of the Pampa biome. The experiment was carried out during 2012 and 2013 in southern Brazil. The experimental design was a randomized complete block with two replicates. Treatments consisted of five contrasting forage allowances of a native grassland managed under continuous stocking: 4, 8, 8?12, 12, and 16 kg of dry matter (DM) 100 kg LW−1 day−1 (or % LW). The 8?12% LW treatment had a variable forage allowance of 8% LW in spring and 12% LW in summer, autumn, and winter. Forage allowance was controlled by changes in stocking rate (kg LW ha−1). Average daily gain (kg LW day−1) was high for forage allowances of 12 and 16% LW but decreased at 8%, reaching the lowest value at 4% LW treatment (p < 0.001). Live weight gain ha−1 year−1 was the greatest at forage allowance of 8?12% LW (p < 0.001). Forage DM intake peaked at a forage allowance of 12% LW (p = 0.005). Individual CH4 emissions remained constant around 150 g day−1 for the two highest forage allowances and decreased to 118 and 107 g day−1 under forage allowances of 8 and 4% LW, respectively (p = 0.002). Emissions per unit LW gain and unit area were driven by animal productivity changes and decreased with increasing forage allowance (p = 0.001 and p = 0.040, respectively). We propose that the combination of 8% LW forage allowance during spring and 12% LW during the rest of the year should be targeted to best balance animal production and environmental impact in the Pampa biome.
© 2021 Elsevier B.V. MenosABSTRACT.
We tested the hypothesis that improving sward structure through adjustments in forage allowance results in greater forage intake and live weight (LW) gains by beef cattle and lower CH4 emissions per unit LW gain and unit area in a native grassland ecosystem of the Pampa biome. The experiment was carried out during 2012 and 2013 in southern Brazil. The experimental design was a randomized complete block with two replicates. Treatments consisted of five contrasting forage allowances of a native grassland managed under continuous stocking: 4, 8, 8?12, 12, and 16 kg of dry matter (DM) 100 kg LW−1 day−1 (or % LW). The 8?12% LW treatment had a variable forage allowance of 8% LW in spring and 12% LW in summer, autumn, and winter. Forage allowance was controlled by changes in stocking rate (kg LW ha−1). Average daily gain (kg LW day−1) was high for forage allowances of 12 and 16% LW but decreased at 8%, reaching the lowest value at 4% LW treatment (p < 0.001). Live weight gain ha−1 year−1 was the greatest at forage allowance of 8?12% LW (p < 0.001). Forage DM intake peaked at a forage allowance of 12% LW (p = 0.005). Individual CH4 emissions remained constant around 150 g day−1 for the two highest forage allowances and decreased to 118 and 107 g day−1 under forage allowances of 8 and 4% LW, respectively (p = 0.002). Emissions per unit LW gain and unit area were driven by animal productivity changes and decreased with increasi... Presentar Todo |
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Palabras claves : |
Climate change; Grazing intensity; Greenhouse gases; Livestock. |
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Asunto categoría : |
F01 Cultivo |
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Marc : |
LEADER 02998naa a2200313 a 4500
001 1061964
005 2021-04-09
008 2021 bl uuuu u00u1 u #d
022 $a0048-9697
024 7 $a10.1016/j.scitotenv.2021.146582$2DOI
100 1 $aCEZIMBRA, I.M.
245 $aPotential of grazing management to improve beef cattle production and mitigate methane emissions in native grasslands of the Pampa biome.$h[electronic resource]
260 $c2021
500 $aArticle history: Received 19 August 2020; Received in revised form 15 March 2021; Accepted 15 March 2021; Available online 19 March 2021. Editor: Elena Paoletti.
520 $aABSTRACT. We tested the hypothesis that improving sward structure through adjustments in forage allowance results in greater forage intake and live weight (LW) gains by beef cattle and lower CH4 emissions per unit LW gain and unit area in a native grassland ecosystem of the Pampa biome. The experiment was carried out during 2012 and 2013 in southern Brazil. The experimental design was a randomized complete block with two replicates. Treatments consisted of five contrasting forage allowances of a native grassland managed under continuous stocking: 4, 8, 8?12, 12, and 16 kg of dry matter (DM) 100 kg LW−1 day−1 (or % LW). The 8?12% LW treatment had a variable forage allowance of 8% LW in spring and 12% LW in summer, autumn, and winter. Forage allowance was controlled by changes in stocking rate (kg LW ha−1). Average daily gain (kg LW day−1) was high for forage allowances of 12 and 16% LW but decreased at 8%, reaching the lowest value at 4% LW treatment (p < 0.001). Live weight gain ha−1 year−1 was the greatest at forage allowance of 8?12% LW (p < 0.001). Forage DM intake peaked at a forage allowance of 12% LW (p = 0.005). Individual CH4 emissions remained constant around 150 g day−1 for the two highest forage allowances and decreased to 118 and 107 g day−1 under forage allowances of 8 and 4% LW, respectively (p = 0.002). Emissions per unit LW gain and unit area were driven by animal productivity changes and decreased with increasing forage allowance (p = 0.001 and p = 0.040, respectively). We propose that the combination of 8% LW forage allowance during spring and 12% LW during the rest of the year should be targeted to best balance animal production and environmental impact in the Pampa biome. © 2021 Elsevier B.V.
653 $aClimate change
653 $aGrazing intensity
653 $aGreenhouse gases
653 $aLivestock
700 1 $aDE ALBUQUERQUE NUNES, P.A.
700 1 $aDE SOUZA FILHO, W.
700 1 $aTISCHLER, M.R.
700 1 $aGENRO, T.C.M.
700 1 $aBAYER, C.
700 1 $aSAVIAN, J.V.
700 1 $aBONNET, O.J.F.
700 1 $aSOUSSANA, J.-F.
700 1 $aDE FACCIO CARVALHO, P.C.
773 $tScience of the Total Environment, 2021, Volume 780, Article number 146582. Doi: https://doi.org/https://doi.org/10.1016/j.scitotenv.2021.146582
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