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 | Acceso al texto completo restringido a Biblioteca INIA La Estanzuela. Por información adicional contacte bib_le@inia.org.uy. |
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Registro completo
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Biblioteca (s) : |
INIA La Estanzuela. |
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Fecha : |
01/08/2019 |
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Actualizado : |
28/10/2019 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Autor : |
FARIÑA, S.; CHILBROSTE, P. |
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Afiliación : |
SANTIAGO FARIÑA, INIA (Instituto Nacional de Investigación Agropecuaria); PABLO CHILIBROSTE, Universidad de la República, Ruta 3 km 363, Paysandú, Uruguay. |
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Título : |
Opportunities and challenges for the growth of milk production from pasture: The case of farm systems in Uruguay. |
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Fecha de publicación : |
2019 |
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Fuente / Imprenta : |
Agricultural Systems, Volume 176, November 2019, Article 102631. |
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DOI : |
10.1016/j.agsy.2019.05.001 |
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Idioma : |
Inglés |
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Notas : |
Article History: Received 10 December 2018// Received in revised form 1 April 2019// Accepted 2 May 2019. |
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Contenido : |
ABSTRACT:
Volatility ofmarketsandclimatearedrivingexportingdairyindustries toincreasemilkproduction frompasture. However, some regions are not able to grow due to economic, social and environmental constraints. The objective of this study was to analyse at the farm system level the opportunities and challenges for the growth of pasture-based dairy production in Uruguay. A national database of 256 dairy farms was used to compare four groups of Uruguayan farmsselectedaccording to thetotal milkproduction growth ratefrom2013 to 2017.Their productivity (milk production per hectare) and pro?t was compared by ?tting mixed models. Complementarily, the International Farm Comparison Network database was used to compare biophysical and economic indicators of typical farm systems of Argentina, Australia, Ireland, Holland, New Zealand, United States and Uruguay from 2013 to 2017. The growing groups of farms (medium and high growth;>5% per year) showed more productivity due to their higher stocking rate and achieved a higher margin over feed cost and a lower feeding cost per L of milk than the shrinking groups (medium and high decrease;<0% per year). The growing systems showed a higher consumption per hectare of home-grown forage (pasture and conserved forage) and supplements. Margin over feed cost decreased alongside milk price over the time frame analysed, with no signi?cant interaction between group and year. Productivity in New Zealand, Australia, United States and Holland was above 10,000L/ha whereas in Ireland, Argentina and Uruguay it was below 7000L/ha. Consumption of homegrown forage per hectare in the former countries more than doubled the latter, which consumed approximately half the potential forage production locally reported. Home-grown forage consumption per hectare was a more likely driver of productivity than bought-in feed or feed conversion e?ciency. Uruguay achieved the lowest cost of production however current low stocking rates (0.7 cows/ha for the typical farm system) limit home-grown forage consumption and productivity growth. Inter-annual variation in economic performance was larger than the variation inbiophysical performance for all countries. Thisstudy showed thatpasture-based farming systems in Uruguay could make a leap in milk production without losing competitiveness by doubling their home-grown forage consumption through increased stocking rates. For such growth, some future challenges will remain around managing P accumulation and runo? in intensifying farms as well as improving farm design and infrastructure to attract labour, improve its productivity and assure animal welfare. MenosABSTRACT:
Volatility ofmarketsandclimatearedrivingexportingdairyindustries toincreasemilkproduction frompasture. However, some regions are not able to grow due to economic, social and environmental constraints. The objective of this study was to analyse at the farm system level the opportunities and challenges for the growth of pasture-based dairy production in Uruguay. A national database of 256 dairy farms was used to compare four groups of Uruguayan farmsselectedaccording to thetotal milkproduction growth ratefrom2013 to 2017.Their productivity (milk production per hectare) and pro?t was compared by ?tting mixed models. Complementarily, the International Farm Comparison Network database was used to compare biophysical and economic indicators of typical farm systems of Argentina, Australia, Ireland, Holland, New Zealand, United States and Uruguay from 2013 to 2017. The growing groups of farms (medium and high growth;>5% per year) showed more productivity due to their higher stocking rate and achieved a higher margin over feed cost and a lower feeding cost per L of milk than the shrinking groups (medium and high decrease;<0% per year). The growing systems showed a higher consumption per hectare of home-grown forage (pasture and conserved forage) and supplements. Margin over feed cost decreased alongside milk price over the time frame analysed, with no signi?cant interaction between group and year. Productivity in New Zealand, Australia, United States and Holland was above 1... Presentar Todo |
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Palabras claves : |
CONSUMO DE FORRAJE; DAIRY FARM SYSEMS; FORAGE CONSUMPTION; HOME-GROWN FORAGE; INTENSIFICACIÓN SOSTENIBLE; PASTURE-BASED; PROFIT; SISTEMAS DE GRANJAS LECHERAS; SUSTAINABLE INTENSIFICATION. |
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Thesagro : |
PRODUCCION LECHERA; SISTEMAS AGRICOLAS. |
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Asunto categoría : |
-- |
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Marc : |
LEADER 03661naa a2200289 a 4500
001 1059962
005 2019-10-28
008 2019 bl uuuu u00u1 u #d
024 7 $a10.1016/j.agsy.2019.05.001$2DOI
100 1 $aFARIÑA, S.
245 $aOpportunities and challenges for the growth of milk production from pasture$bThe case of farm systems in Uruguay.$h[electronic resource]
260 $c2019
500 $aArticle History: Received 10 December 2018// Received in revised form 1 April 2019// Accepted 2 May 2019.
520 $aABSTRACT: Volatility ofmarketsandclimatearedrivingexportingdairyindustries toincreasemilkproduction frompasture. However, some regions are not able to grow due to economic, social and environmental constraints. The objective of this study was to analyse at the farm system level the opportunities and challenges for the growth of pasture-based dairy production in Uruguay. A national database of 256 dairy farms was used to compare four groups of Uruguayan farmsselectedaccording to thetotal milkproduction growth ratefrom2013 to 2017.Their productivity (milk production per hectare) and pro?t was compared by ?tting mixed models. Complementarily, the International Farm Comparison Network database was used to compare biophysical and economic indicators of typical farm systems of Argentina, Australia, Ireland, Holland, New Zealand, United States and Uruguay from 2013 to 2017. The growing groups of farms (medium and high growth;>5% per year) showed more productivity due to their higher stocking rate and achieved a higher margin over feed cost and a lower feeding cost per L of milk than the shrinking groups (medium and high decrease;<0% per year). The growing systems showed a higher consumption per hectare of home-grown forage (pasture and conserved forage) and supplements. Margin over feed cost decreased alongside milk price over the time frame analysed, with no signi?cant interaction between group and year. Productivity in New Zealand, Australia, United States and Holland was above 10,000L/ha whereas in Ireland, Argentina and Uruguay it was below 7000L/ha. Consumption of homegrown forage per hectare in the former countries more than doubled the latter, which consumed approximately half the potential forage production locally reported. Home-grown forage consumption per hectare was a more likely driver of productivity than bought-in feed or feed conversion e?ciency. Uruguay achieved the lowest cost of production however current low stocking rates (0.7 cows/ha for the typical farm system) limit home-grown forage consumption and productivity growth. Inter-annual variation in economic performance was larger than the variation inbiophysical performance for all countries. Thisstudy showed thatpasture-based farming systems in Uruguay could make a leap in milk production without losing competitiveness by doubling their home-grown forage consumption through increased stocking rates. For such growth, some future challenges will remain around managing P accumulation and runo? in intensifying farms as well as improving farm design and infrastructure to attract labour, improve its productivity and assure animal welfare.
650 $aPRODUCCION LECHERA
650 $aSISTEMAS AGRICOLAS
653 $aCONSUMO DE FORRAJE
653 $aDAIRY FARM SYSEMS
653 $aFORAGE CONSUMPTION
653 $aHOME-GROWN FORAGE
653 $aINTENSIFICACIÓN SOSTENIBLE
653 $aPASTURE-BASED
653 $aPROFIT
653 $aSISTEMAS DE GRANJAS LECHERAS
653 $aSUSTAINABLE INTENSIFICATION
700 1 $aCHILBROSTE, P.
773 $tAgricultural Systems, Volume 176, November 2019, Article 102631.
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Registro original : |
INIA La Estanzuela (LE) |
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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 actual : |
01/07/2015 |
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Actualizado : |
27/04/2020 |
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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 : |
RESCONI, V.C.; CAMPO, M.M.; MONTOSSI, F.; FERREIRA, V.; SAÑUDO, C.; ESCUDERO, A. |
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Afiliación : |
VIRGINIA CELIA RESCONI, University of Zaragoza, Spain; MARÍA DEL MAR CAMPO, Facultad de Veterinaria, Universidad de Zaragoza, España; FABIO MARCELO MONTOSSI PORCHILE, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; VICENTE FERREIRA; CARLOS SAÑUDO, Facultad de Veterinaria, Univ. de Zaragoza; ANA ESCUDERO. |
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Título : |
Gas chromatographic-olfactometric aroma profile and quantitative analysis of volatile carbonyls of grilled beef from different finishing feed systems. |
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Fecha de publicación : |
2012 |
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Fuente / Imprenta : |
Journal of Food Science, 2012, v. 77, no. 6, p. 5240-5246. https://doi.org/10.1111/j.1750-3841.2012.02720.x |
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DOI : |
10.1111/j.1750-3841.2012.02720.x |
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Idioma : |
Inglés |
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Notas : |
History article: Submitted 11/24/2011; Accepted 3/14/2012. Acknowledgments: The authors thank P. Lara, F. San Juan, L. Cullere, and J. Zapata, and the technical support and expertise of the personnel involved in fattening, slaughtering, and conditioning animals and meat samples. |
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Contenido : |
In this study, the important odor impact volatiles generated in the meat of grilled beef loin muscle were characterized. Animals were finished in 4 different diet systems: T1, pasture (a mixture of Medicago sativa, Trifolium repens, and Festuca arundinacea); T2, pasture supplemented with cracked corn grain (offered at 0.6% live weight, LW); T3, pasture supplemented with cracked corn grain (offered at 1.2% LW); and T4, concentrate (pellets with 85% corn and 12.8% sunflower, on a dry-matter basis) plus alfalfa hay (both ad libitum). Aroma compounds were assessed by dynamic headspace-solid phase extraction (DHS-SPE) and gas chromatographic-olfactometric (GC-O) analysis. Most odorants were carbonyl compounds, some of them reaching high GC-O scores, especially 1-octen-3-one, (E)-2-octenal, methional, and hexanal. A specific quantitative analysis of ketones and aldehydes was conducted through their derivatization with o-(2,3,4,5,6-pentafluorobenzyl) hydroxylamine hydrochloride directly on the headspace trap and analyzed by GC-MS, with the purpose of studying the effect of finishing diet systems. From the 23 carbonyl compounds quantified, 2 were especially affected by the diet system; methional was higher in the treatment based on concentrates, whereas (E,E)-2,4-heptadienal was higher in the treatment based only in pastures. The results are discussed considering previous published productive and quality traits. |
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Palabras claves : |
ALDEHYDES; AROMA COMPOUNDS; FINISHING FEEDS; GAS CHROMATOGRAPHY-OLFACTOMETRY; GC-O; KETONES. |
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Thesagro : |
AROMA; CARNE; CROMATOGRAFIA. |
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Asunto categoría : |
A50 Investigación agraria |
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Marc : |
LEADER 02659naa a2200313 a 4500
001 1052973
005 2020-04-27
008 2012 bl uuuu u00u1 u #d
024 7 $a10.1111/j.1750-3841.2012.02720.x$2DOI
100 1 $aRESCONI, V.C.
245 $aGas chromatographic-olfactometric aroma profile and quantitative analysis of volatile carbonyls of grilled beef from different finishing feed systems.
260 $c2012
500 $aHistory article: Submitted 11/24/2011; Accepted 3/14/2012. Acknowledgments: The authors thank P. Lara, F. San Juan, L. Cullere, and J. Zapata, and the technical support and expertise of the personnel involved in fattening, slaughtering, and conditioning animals and meat samples.
520 $aIn this study, the important odor impact volatiles generated in the meat of grilled beef loin muscle were characterized. Animals were finished in 4 different diet systems: T1, pasture (a mixture of Medicago sativa, Trifolium repens, and Festuca arundinacea); T2, pasture supplemented with cracked corn grain (offered at 0.6% live weight, LW); T3, pasture supplemented with cracked corn grain (offered at 1.2% LW); and T4, concentrate (pellets with 85% corn and 12.8% sunflower, on a dry-matter basis) plus alfalfa hay (both ad libitum). Aroma compounds were assessed by dynamic headspace-solid phase extraction (DHS-SPE) and gas chromatographic-olfactometric (GC-O) analysis. Most odorants were carbonyl compounds, some of them reaching high GC-O scores, especially 1-octen-3-one, (E)-2-octenal, methional, and hexanal. A specific quantitative analysis of ketones and aldehydes was conducted through their derivatization with o-(2,3,4,5,6-pentafluorobenzyl) hydroxylamine hydrochloride directly on the headspace trap and analyzed by GC-MS, with the purpose of studying the effect of finishing diet systems. From the 23 carbonyl compounds quantified, 2 were especially affected by the diet system; methional was higher in the treatment based on concentrates, whereas (E,E)-2,4-heptadienal was higher in the treatment based only in pastures. The results are discussed considering previous published productive and quality traits.
650 $aAROMA
650 $aCARNE
650 $aCROMATOGRAFIA
653 $aALDEHYDES
653 $aAROMA COMPOUNDS
653 $aFINISHING FEEDS
653 $aGAS CHROMATOGRAPHY-OLFACTOMETRY
653 $aGC-O
653 $aKETONES
700 1 $aCAMPO, M.M.
700 1 $aMONTOSSI, F.
700 1 $aFERREIRA, V.
700 1 $aSAÑUDO, C.
700 1 $aESCUDERO, A.
773 $tJournal of Food Science, 2012$gv. 77, no. 6, p. 5240-5246. https://doi.org/10.1111/j.1750-3841.2012.02720.x
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