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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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Biblioteca
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| Acceso al texto completo restringido a Biblioteca INIA La Estanzuela. Por información adicional contacte bib_le@inia.org.uy. |
|
Registro completo
|
|
Biblioteca (s) : |
INIA La Estanzuela. |
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Fecha actual : |
12/10/2017 |
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Actualizado : |
28/05/2018 |
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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 : |
SANTANA, A.; CAJARVILLE, C.; MENDOZA, A.; REPETTO, J. |
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Afiliación : |
Universidad de la República (UdelaR)/ Facultad de Veterinaria; C. CAJARVILLE, Universidad de la República (UdelaR)/ Facultad de Veterinaria; ALEJANDRO FRANCISCO MENDOZA AGUIAR, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; JOSE LUIS REPETTO CAPELLO, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
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Título : |
Combination of legume-based herbage and total mixed ration (TMR) maintains intake and nutrient utilization of TMR and improves nitrogen utilization of herbage in heifers. |
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Fecha de publicación : |
2017 |
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Fuente / Imprenta : |
Animal , v. 11 n.4, p 616-624, 2017. |
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DOI : |
10.1017/S1751731116001956 |
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Idioma : |
Inglés |
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Notas : |
Article history: Received 18 September 2015 /7 Accepted 11 July 2016// First published online 11 October 2016. |
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Contenido : |
Abstract: Diets combining herbage and total mixed rations (TMR) are increasingly used in temperate regions for feeding ruminants,
but little information is available regarding the effects on nutrient intake and digestion of this feeding management in beef cattle.
The aim of this study was to determine the effects of combining TMR (10% CP and 13% ADF), and legume-based herbage
(14% CP and 27% ADF) on intake, nutrient digestion, ruminal fermentation, microbial N flow and glucose and nitrogen
metabolism in heifers. The experiment was a 3 × 3 Latin square design replicated three times; each period lasted 18 days
(10 adaptation days and 8 measurement days). Nine cross-bred (Aberdeen Angus × Hereford) heifers (214 ± 18 kg) fitted with
permanent rumen catheters and housed in individual metabolic cages were assigned to one of three treatments: 24 h access to
TMR ( T), 24 h access to herbage ( H) or combined diets with 18 h access to TMR and 6 h access to herbage ( T + H). Data were
evaluated using a mixed model. Animals fed T+H ( TMR 71% and herbage 29%) diets tended to have a higher dry matter intake
as a proportion of their BW than animals fed T. The T+ H diet did not change ruminal fermentation (pH, N?NH3 and volatile fatty
acids) or the N metabolism relative to the T diet, but increased the glucagon concentration and altered glucose metabolism.
Conversely, animals fed T +H had increased purine derivatives excretion, increased N use efficiency for microbial protein synthesis
and decreased plasma urea and urinary N excretion relative to animals fed H diet. The use of combined diets led to consumption
of nutrients similar to a TMR diet, without reducing nutrient use and could improve N utilization compared with the
herbage-only diet. MenosAbstract: Diets combining herbage and total mixed rations (TMR) are increasingly used in temperate regions for feeding ruminants,
but little information is available regarding the effects on nutrient intake and digestion of this feeding management in beef cattle.
The aim of this study was to determine the effects of combining TMR (10% CP and 13% ADF), and legume-based herbage
(14% CP and 27% ADF) on intake, nutrient digestion, ruminal fermentation, microbial N flow and glucose and nitrogen
metabolism in heifers. The experiment was a 3 × 3 Latin square design replicated three times; each period lasted 18 days
(10 adaptation days and 8 measurement days). Nine cross-bred (Aberdeen Angus × Hereford) heifers (214 ± 18 kg) fitted with
permanent rumen catheters and housed in individual metabolic cages were assigned to one of three treatments: 24 h access to
TMR ( T), 24 h access to herbage ( H) or combined diets with 18 h access to TMR and 6 h access to herbage ( T + H). Data were
evaluated using a mixed model. Animals fed T+H ( TMR 71% and herbage 29%) diets tended to have a higher dry matter intake
as a proportion of their BW than animals fed T. The T+ H diet did not change ruminal fermentation (pH, N?NH3 and volatile fatty
acids) or the N metabolism relative to the T diet, but increased the glucagon concentration and altered glucose metabolism.
Conversely, animals fed T +H had increased purine derivatives excretion, increased N use efficiency for microbial protein synthesis
and ... Presentar Todo |
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Palabras claves : |
FEEDING SYSTEMS; MEZCLA TOTAL RACION (TMR); MICROBIAL PROTEIN SYNTHESIS; MIXED DIETS; PARTIAL MIXED RATION; PASTURE; UTILIZACIÓN DE NUTRIENTES. |
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Thesagro : |
Forrajes. |
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Asunto categoría : |
-- |
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Marc : |
LEADER 02745naa a2200277 a 4500
001 1057651
005 2018-05-28
008 2017 bl uuuu u00u1 u #d
024 7 $a10.1017/S1751731116001956$2DOI
100 1 $aSANTANA, A.
245 $aCombination of legume-based herbage and total mixed ration (TMR) maintains intake and nutrient utilization of TMR and improves nitrogen utilization of herbage in heifers.$h[electronic resource]
260 $c2017
500 $aArticle history: Received 18 September 2015 /7 Accepted 11 July 2016// First published online 11 October 2016.
520 $aAbstract: Diets combining herbage and total mixed rations (TMR) are increasingly used in temperate regions for feeding ruminants, but little information is available regarding the effects on nutrient intake and digestion of this feeding management in beef cattle. The aim of this study was to determine the effects of combining TMR (10% CP and 13% ADF), and legume-based herbage (14% CP and 27% ADF) on intake, nutrient digestion, ruminal fermentation, microbial N flow and glucose and nitrogen metabolism in heifers. The experiment was a 3 × 3 Latin square design replicated three times; each period lasted 18 days (10 adaptation days and 8 measurement days). Nine cross-bred (Aberdeen Angus × Hereford) heifers (214 ± 18 kg) fitted with permanent rumen catheters and housed in individual metabolic cages were assigned to one of three treatments: 24 h access to TMR ( T), 24 h access to herbage ( H) or combined diets with 18 h access to TMR and 6 h access to herbage ( T + H). Data were evaluated using a mixed model. Animals fed T+H ( TMR 71% and herbage 29%) diets tended to have a higher dry matter intake as a proportion of their BW than animals fed T. The T+ H diet did not change ruminal fermentation (pH, N?NH3 and volatile fatty acids) or the N metabolism relative to the T diet, but increased the glucagon concentration and altered glucose metabolism. Conversely, animals fed T +H had increased purine derivatives excretion, increased N use efficiency for microbial protein synthesis and decreased plasma urea and urinary N excretion relative to animals fed H diet. The use of combined diets led to consumption of nutrients similar to a TMR diet, without reducing nutrient use and could improve N utilization compared with the herbage-only diet.
650 $aForrajes
653 $aFEEDING SYSTEMS
653 $aMEZCLA TOTAL RACION (TMR)
653 $aMICROBIAL PROTEIN SYNTHESIS
653 $aMIXED DIETS
653 $aPARTIAL MIXED RATION
653 $aPASTURE
653 $aUTILIZACIÓN DE NUTRIENTES
700 1 $aCAJARVILLE, C.
700 1 $aMENDOZA, A.
700 1 $aREPETTO, J.
773 $tAnimal$gv. 11 n.4, p 616-624, 2017.
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