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Registro Completo |
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Biblioteca(s): |
Embrapa Pecuária Sudeste. |
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Data corrente: |
13/12/2021 |
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Data da última atualização: |
13/12/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
LOPES, M. A.; DEMEU, F. A.; REIS, E. M. B.; LIMA, A. L. R.; CARVALHO, F. DE M.; PALHARES, J. C. P.; COSTA, G. M. DA; PINHEIRO, M. V. G.; DEMEU, A. A. |
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Afiliação: |
MARCOS AURÉLIO LOPES, UFLA; FABIANA ALVES DEMEU, Instituto Federal de Rondônia, IFRO; EDUARDO MITKE BRANDÃO REIS, Universidade Federal do Acre, UFAC; ANDRÉ LUIS RIBEIRO LIMA, UFLA; FRANCISVAL DE MELO CARVALHO, UFLA; JULIO CESAR PASCALE PALHARES, CPPSE; GERALDO MÁRCIO DA COSTA, UFLA; MARCELO VINÍCIUS GONTIJO PINHEIRO, Médico Veterinário, Autônomo, Ilícinea, MG; ANDRÉIA ALVES DEMEU, Zootecnista, Autônoma, Porto Velho, RO. |
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Título: |
Economic viability of implementing an infrastructure for recycling bedding sand from a free-stall facility for dairy cows. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
Semina, v.42, n.1, p.361-374, jan./fev. 2021. |
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ISSN: |
1679-0359 |
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DOI: |
10.5433/1679-0359.2021v42n1p361 |
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Idioma: |
Português |
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Conteúdo: |
This study proposes to examine the economic viability of implementing the necessary infrastructure for the recycling of bedding sand from a free-stall facility in a milk production system in southern Minas Gerais, Brazil. In specific terms, the total production cost (TC), total operating cost (TOC) and effective operating cost (EOC) of a cubic meter of recycled sand were estimated in order to estimate the total sand consumption for the free-stall system and per bed year-1 as well as the equilibrium point of the amount of recycled sand, in cubic meters. The experiment was carried out on a farm located in the south of Minas Gerais from January 2016 to December 2017. Three scenarios were analyzed by the tree-point estimation method (MOP - most likely, optimistic, and pessimistic). Utilization of 85%, 95% and 75% of the recycled sand was considered for scenarios 1, 2 and 3, respectively. In all of them, the value charged per cubic meter of sand by a supplier close to the farm was considered. Monte Carlo simulation was also carried out with hurdle rates (HR) of up to 90%. Under the studied conditions, sand recycling showed to be economically viable in all scenarios, with positive net present values (NPV), internal rates of return above the HR, simple and discounted payback below the 10-year horizon, and satisfactory cost benefit-1 ratios (greater than 1). The EOC of one cubic meter of recycled sand was estimated at R$5.04, R$4.51 and R$5.72 for scenarios 1, 2 and 3, respectively, whereas the average TC, considering all scenarios, was R$6.84 (+0.81), which is less than the acquisition price of R$28.57 at the sand extraction site. The TC was R$37,219.51 and R$34,637.74 for the scenarios with HR of 8.50 and 6.99%, respectively, whereas TOC was R$22,572.08 in all analyzed scenarios. The estimated total annual sand consumption by the free-stall system was 526.44 m³, with an estimated average of 1.23 m³ (+0.28) bed-1 year-1. All Monte Carlo simulation models showed positive NPV as well as HR of up to 90%, which reflect a high probability of positive NPV. MenosThis study proposes to examine the economic viability of implementing the necessary infrastructure for the recycling of bedding sand from a free-stall facility in a milk production system in southern Minas Gerais, Brazil. In specific terms, the total production cost (TC), total operating cost (TOC) and effective operating cost (EOC) of a cubic meter of recycled sand were estimated in order to estimate the total sand consumption for the free-stall system and per bed year-1 as well as the equilibrium point of the amount of recycled sand, in cubic meters. The experiment was carried out on a farm located in the south of Minas Gerais from January 2016 to December 2017. Three scenarios were analyzed by the tree-point estimation method (MOP - most likely, optimistic, and pessimistic). Utilization of 85%, 95% and 75% of the recycled sand was considered for scenarios 1, 2 and 3, respectively. In all of them, the value charged per cubic meter of sand by a supplier close to the farm was considered. Monte Carlo simulation was also carried out with hurdle rates (HR) of up to 90%. Under the studied conditions, sand recycling showed to be economically viable in all scenarios, with positive net present values (NPV), internal rates of return above the HR, simple and discounted payback below the 10-year horizon, and satisfactory cost benefit-1 ratios (greater than 1). The EOC of one cubic meter of recycled sand was estimated at R$5.04, R$4.51 and R$5.72 for scenarios 1, 2 and 3, respectively,... Mostrar Tudo |
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Palavras-Chave: |
Análise de cenários; Bovinocultura leiteira; Dairy cattle farming; Indicadores de rentabilidade; Profitability indicators; Reuse; Reuso; Scenario analysis; Sustainability; Sustentabilidade. |
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Categoria do assunto: |
E Economia e Indústria Agrícola |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/229019/1/EconomicViabilityImplementing.pdf
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Marc: |
LEADER 03172naa a2200361 a 4500
001 2137670
005 2021-12-13
008 2021 bl uuuu u00u1 u #d
022 $a1679-0359
024 7 $a10.5433/1679-0359.2021v42n1p361$2DOI
100 1 $aLOPES, M. A.
245 $aEconomic viability of implementing an infrastructure for recycling bedding sand from a free-stall facility for dairy cows.$h[electronic resource]
260 $c2021
520 $aThis study proposes to examine the economic viability of implementing the necessary infrastructure for the recycling of bedding sand from a free-stall facility in a milk production system in southern Minas Gerais, Brazil. In specific terms, the total production cost (TC), total operating cost (TOC) and effective operating cost (EOC) of a cubic meter of recycled sand were estimated in order to estimate the total sand consumption for the free-stall system and per bed year-1 as well as the equilibrium point of the amount of recycled sand, in cubic meters. The experiment was carried out on a farm located in the south of Minas Gerais from January 2016 to December 2017. Three scenarios were analyzed by the tree-point estimation method (MOP - most likely, optimistic, and pessimistic). Utilization of 85%, 95% and 75% of the recycled sand was considered for scenarios 1, 2 and 3, respectively. In all of them, the value charged per cubic meter of sand by a supplier close to the farm was considered. Monte Carlo simulation was also carried out with hurdle rates (HR) of up to 90%. Under the studied conditions, sand recycling showed to be economically viable in all scenarios, with positive net present values (NPV), internal rates of return above the HR, simple and discounted payback below the 10-year horizon, and satisfactory cost benefit-1 ratios (greater than 1). The EOC of one cubic meter of recycled sand was estimated at R$5.04, R$4.51 and R$5.72 for scenarios 1, 2 and 3, respectively, whereas the average TC, considering all scenarios, was R$6.84 (+0.81), which is less than the acquisition price of R$28.57 at the sand extraction site. The TC was R$37,219.51 and R$34,637.74 for the scenarios with HR of 8.50 and 6.99%, respectively, whereas TOC was R$22,572.08 in all analyzed scenarios. The estimated total annual sand consumption by the free-stall system was 526.44 m³, with an estimated average of 1.23 m³ (+0.28) bed-1 year-1. All Monte Carlo simulation models showed positive NPV as well as HR of up to 90%, which reflect a high probability of positive NPV.
653 $aAnálise de cenários
653 $aBovinocultura leiteira
653 $aDairy cattle farming
653 $aIndicadores de rentabilidade
653 $aProfitability indicators
653 $aReuse
653 $aReuso
653 $aScenario analysis
653 $aSustainability
653 $aSustentabilidade
700 1 $aDEMEU, F. A.
700 1 $aREIS, E. M. B.
700 1 $aLIMA, A. L. R.
700 1 $aCARVALHO, F. DE M.
700 1 $aPALHARES, J. C. P.
700 1 $aCOSTA, G. M. DA
700 1 $aPINHEIRO, M. V. G.
700 1 $aDEMEU, A. A.
773 $tSemina$gv.42, n.1, p.361-374, jan./fev. 2021.
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Registro original: |
Embrapa Pecuária Sudeste (CPPSE) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Milho e Sorgo. Para informações adicionais entre em contato com cnpms.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Agricultura Digital; Embrapa Milho e Sorgo. |
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Data corrente: |
10/07/2017 |
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Data da última atualização: |
24/01/2018 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
RIBEIRO, A. P.; SOUZA, W. R. de; MARTINS, P. K.; VINECKY, F.; DUARTE, K. E.; BASSO, M. F.; DIAS, B. B. A.; CAMPANHA, R. B.; OLIVEIRA, P. A. de; CENTENO, D. C.; CANÇADO, G. M. de A.; MAGALHÃES, J. V. de; SOUSA, C. A. F. de; ANDRADE, A. C.; KOBAYASHI, A. K.; MOLINARI, H. B. C. |
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Afiliação: |
WAGNER R. DE SOUZA, UFLA; POLYANA K. MARTINS, UFLA; FELIPE VINECKY, UFLA; KAROLINE E. DUARTE, UFLA; MARCOS F. BASSO, UFLA; BARBARA ANDRADE DIAS BRITO DA CUNHA, CNPAE; RAQUEL BOMBARDA CAMPANHA, CNPAE; PATRICIA ABRAO DE OLIVEIRA, CNPAE; DANILO C. CENTENO, UFABC; GERALDO MAGELA DE ALMEIDA CANCADO, CNPTIA; JURANDIR VIEIRA DE MAGALHAES, CNPMS; CARLOS A. F. DE SOUSA, UFLA; ALAN CARVALHO ANDRADE, SAPC; ADILSON KENJI KOBAYASHI, CNPAE; HUGO BRUNO CORREA MOLINARI, CNPAE. |
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Título: |
Overexpression of BdMATE gene improves aluminum tolerance in Setaria viridis. |
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Ano de publicação: |
2017 |
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Fonte/Imprenta: |
Frontiers in Plant Science, v. 8, p. 1-12, June 2017. |
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Páginas: |
12 p. |
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DOI: |
10.3389/fpls.2017.00865 |
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Idioma: |
Inglês |
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Conteúdo: |
Acidic soils are distributed worldwide, predominantly in tropical and subtropical areas,reaching around 50% of the arable soil. This type of soil strongly reduces crop production, mainly because of the presence of aluminum, which has its solubility increased at low pH levels. A well-known physiological mechanism used by plants to cope with Al stress involves activation of membrane transporters responsible for organic acid anions secretion from the root apex to the rhizosphere, which chelate Al, preventing its absorption by roots. In sorghum, a membrane transporter gene belonging to multidrug and toxic compound extrusion (MATE) family was identified and characterized as an aluminum-activated citrate transporter gene responsible for Al tolerance in this crop. Setaria viridis is an emerging model for C4 species and it is an important model to validate some genes for further C4 crops transformation, such as sugarcane, maize, and wheat. In the present work, Setaria viridis was used as a model plant to overexpress a newly identified MATE gene from Brachypodium distachyon(BdMATE), closely related to SbMATE, for aluminum tolerance assays. Transgenic S. viridis plants overexpressing a BdMATE presented an improved Al tolerance phenotype, characterized by sustained root growth and exclusion of aluminum from the root apex in transgenic plants, as confirmed by hematoxylin assay. In addition, transgenic plants showed higher root citrate exudation into the rhizosphere, suggesting that Al tolerance improvement in these plants could be related to the chelation of the metal by the organic acid anion. These results suggest that BdMATE gene can be used to transform C4 crops of economic importance with improved aluminum tolerance. MenosAcidic soils are distributed worldwide, predominantly in tropical and subtropical areas,reaching around 50% of the arable soil. This type of soil strongly reduces crop production, mainly because of the presence of aluminum, which has its solubility increased at low pH levels. A well-known physiological mechanism used by plants to cope with Al stress involves activation of membrane transporters responsible for organic acid anions secretion from the root apex to the rhizosphere, which chelate Al, preventing its absorption by roots. In sorghum, a membrane transporter gene belonging to multidrug and toxic compound extrusion (MATE) family was identified and characterized as an aluminum-activated citrate transporter gene responsible for Al tolerance in this crop. Setaria viridis is an emerging model for C4 species and it is an important model to validate some genes for further C4 crops transformation, such as sugarcane, maize, and wheat. In the present work, Setaria viridis was used as a model plant to overexpress a newly identified MATE gene from Brachypodium distachyon(BdMATE), closely related to SbMATE, for aluminum tolerance assays. Transgenic S. viridis plants overexpressing a BdMATE presented an improved Al tolerance phenotype, characterized by sustained root growth and exclusion of aluminum from the root apex in transgenic plants, as confirmed by hematoxylin assay. In addition, transgenic plants showed higher root citrate exudation into the rhizosphere, suggesting that Al t... Mostrar Tudo |
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Palavras-Chave: |
BdMate; Hydroponic system; Organismo geneticamente modificado; Tolerância ao alumínio. |
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Thesagro: |
Aluminio. |
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Thesaurus NAL: |
Abiotic stress; Aluminum; Genetically modified organisms; Setaria viridis. |
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Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
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Marc: |
LEADER 02981naa a2200433 a 4500
001 2080632
005 2018-01-24
008 2017 bl uuuu u00u1 u #d
024 7 $a10.3389/fpls.2017.00865$2DOI
100 1 $aRIBEIRO, A. P.
245 $aOverexpression of BdMATE gene improves aluminum tolerance in Setaria viridis.$h[electronic resource]
260 $c2017
300 $a12 p.
520 $aAcidic soils are distributed worldwide, predominantly in tropical and subtropical areas,reaching around 50% of the arable soil. This type of soil strongly reduces crop production, mainly because of the presence of aluminum, which has its solubility increased at low pH levels. A well-known physiological mechanism used by plants to cope with Al stress involves activation of membrane transporters responsible for organic acid anions secretion from the root apex to the rhizosphere, which chelate Al, preventing its absorption by roots. In sorghum, a membrane transporter gene belonging to multidrug and toxic compound extrusion (MATE) family was identified and characterized as an aluminum-activated citrate transporter gene responsible for Al tolerance in this crop. Setaria viridis is an emerging model for C4 species and it is an important model to validate some genes for further C4 crops transformation, such as sugarcane, maize, and wheat. In the present work, Setaria viridis was used as a model plant to overexpress a newly identified MATE gene from Brachypodium distachyon(BdMATE), closely related to SbMATE, for aluminum tolerance assays. Transgenic S. viridis plants overexpressing a BdMATE presented an improved Al tolerance phenotype, characterized by sustained root growth and exclusion of aluminum from the root apex in transgenic plants, as confirmed by hematoxylin assay. In addition, transgenic plants showed higher root citrate exudation into the rhizosphere, suggesting that Al tolerance improvement in these plants could be related to the chelation of the metal by the organic acid anion. These results suggest that BdMATE gene can be used to transform C4 crops of economic importance with improved aluminum tolerance.
650 $aAbiotic stress
650 $aAluminum
650 $aGenetically modified organisms
650 $aSetaria viridis
650 $aAluminio
653 $aBdMate
653 $aHydroponic system
653 $aOrganismo geneticamente modificado
653 $aTolerância ao alumínio
700 1 $aSOUZA, W. R. de
700 1 $aMARTINS, P. K.
700 1 $aVINECKY, F.
700 1 $aDUARTE, K. E.
700 1 $aBASSO, M. F.
700 1 $aDIAS, B. B. A.
700 1 $aCAMPANHA, R. B.
700 1 $aOLIVEIRA, P. A. de
700 1 $aCENTENO, D. C.
700 1 $aCANÇADO, G. M. de A.
700 1 $aMAGALHÃES, J. V. de
700 1 $aSOUSA, C. A. F. de
700 1 $aANDRADE, A. C.
700 1 $aKOBAYASHI, A. K.
700 1 $aMOLINARI, H. B. C.
773 $tFrontiers in Plant Science$gv. 8, p. 1-12, June 2017.
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Embrapa Milho e Sorgo (CNPMS) |
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