| |
|
|
|
Registro completo
|
|
Biblioteca (s) : |
INIA La Estanzuela. |
|
Fecha : |
02/10/2019 |
|
Actualizado : |
21/01/2020 |
|
Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
|
Autor : |
CANOZZI, M.E.A.; MARQUES, P.M.; TEIXEIRA, O. DE S.; PIMENTEL, C.M.M.; DILL, M.D.; BARCELLOS, J.O.J. |
|
Afiliación : |
MARÍA EUGENIA ANDRIGHETTO CANOZZI, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; PEDRO ROCHA MARQUES, Departamento de Zootecnia, Universidade Federal do Rio Grande do Sul (UFRGS), 91540-000, Porto Alegre, RS, Brasil.; ODILENE DE SOUZA TEIXEIRA, Departamento de Zootecnia, Universidade Federal do Rio Grande do Sul (UFRGS), 91540-000, Porto Alegre, RS, Brasil.; CONCEPTA MARGARET MCMANUS PIMENTEL, Instituto de Ciências Biológicas, Universidade Federal de Brasília (UnB), Brasília, DF, Brasil.; MATHEUS DHEIN DILL, Unidade Acadêmica de Garanhuns (UAG), Universidade Federal Rural de Pernambuco (UFRPE), Garanhuns, PE, Brasil.; JÚLIO OTÁVIO JARDIM BARCELLOS, Departamento de Zootecnia, Universidade Federal do Rio Grande do Sul (UFRGS), 91540-000, Porto Alegre, RS, Brasil. |
|
Título : |
Typology of beef production systems according to bioeconomic efficiency in the south of Brazil. [Tipologia de sistemas de produção de carne bovina de acordo com a eficiência bioeconômica no sul do Brasil]¨. |
|
Fecha de publicación : |
2019 |
|
Fuente / Imprenta : |
Ciencia Rural, Santa Marìa, september 2019, vol.49, no.10,e20190030. OPEN ACCESS. Doi: 10.1590/0103-8478cr20190030 |
|
ISSN : |
0103-8478 On-line |
|
DOI : |
10.1590/0103-8478cr20190030 |
|
Idioma : |
Inglés |
|
Notas : |
Article history: Received 01.14.19 / Approved 07.26.19/ Returned by the author 08.21.19. |
|
Contenido : |
ABSTRACT: The objective of this study was to evaluate the bioeconomic efficiency of beef cattle production systems in the south of Brazil. A
survey was conducted with 33 beef cattle farmers operating with complete cycle production systems in areas larger or equal to 900 ha. Answers
were classified in two drivers, technology (TEC) and management (MAN), which were separated into subfactors with their respective components.
Multiple correspondence analysis, Tukey test, cluster analysis, and Pearson correlation were the statistics procedures. The TEC components were
above normal for Brazilian farmers, but the gross margin is still lower than that needed to generate financial resources for a proper remuneration
of cattle farmer. Farmers were classified into three clusters according to bioeconomic efficiency: low (LEL), intermediate (IEL), or high-efficiency
level (HEL). The TEC driver differentiated the LEL x HEL clusters and the MAN, mainly expressed in costs, the IEL x HEL. Positive correlation
between age at first mating and age at slaughter in the HEL cluster explains the higher costs when compared to IEL because of the use of
differentiated feed resources. Investments in technologies related to herd feeding in HEL cluster improved the productivity by only 20% and the
cost per hectare by 95 USD ha-1 in comparison to IEL cluster. The main differences between farmers are because of the use of technologies related
to feeding and cost management. Therefore, before implementing a new technology, an economic evaluation is necessary.
RESUMO: O objetivo deste estudo foi avaliar a eficiência bioeconômica em sistemas de produção de bovinos de corte no sul do Brasil. A pesquisa foi realizada com 33 pecuaristas que operam com sistemas de produção baseado em ciclo completo, em áreas maiores ou iguais a 900 hectares. As respostas foram classificadas em dois fatores: tecnologia (TEC) e gestão (GES), os quais foram separados em subfatores com seus respectivos componentes. A análise de correspondência múltipla, teste de Tukey, análise de cluster e correlação de Pearson foram os procedimentos estatísticos. Os componentes do TEC estavam acima do normal para os pecuaristas brasileiros, mas a margem bruta ainda é menor do que a necessária para gerar recursos financeiros para uma remuneração adequada ao pecuarista. Os pecuaristas foram classificados em três grupos de acordo com a eficiência bioeconômica: baixo (BNE), intermediário (INE) ou alto nível de eficiência (ANE). O driver TEC diferenciou os clusters BNE x ANE e o GES, expresso principalmente em custos, o INE x ANE. A correlação positiva entre a idade no primeiro acasalamento e a idade ao abate no agrupamento ANE explica os custos mais elevados quando comparados aos INE, devido ao uso de recursos alimentares diferenciados. Os investimentos em tecnologias relacionadas à alimentação de rebanho no agrupamento ANE melhoraram a produtividade em apenas 20% e o custo por hectare em 95 USD ha-1 em comparação ao cluster INE. As principais diferenças entre os pecuaristas se devem ao uso de tecnologias relacionadas à alimentação e ao gerenciamento de custos. Portanto, antes de implementar uma nova tecnologia, uma avaliação econômica é necessária. MenosABSTRACT: The objective of this study was to evaluate the bioeconomic efficiency of beef cattle production systems in the south of Brazil. A
survey was conducted with 33 beef cattle farmers operating with complete cycle production systems in areas larger or equal to 900 ha. Answers
were classified in two drivers, technology (TEC) and management (MAN), which were separated into subfactors with their respective components.
Multiple correspondence analysis, Tukey test, cluster analysis, and Pearson correlation were the statistics procedures. The TEC components were
above normal for Brazilian farmers, but the gross margin is still lower than that needed to generate financial resources for a proper remuneration
of cattle farmer. Farmers were classified into three clusters according to bioeconomic efficiency: low (LEL), intermediate (IEL), or high-efficiency
level (HEL). The TEC driver differentiated the LEL x HEL clusters and the MAN, mainly expressed in costs, the IEL x HEL. Positive correlation
between age at first mating and age at slaughter in the HEL cluster explains the higher costs when compared to IEL because of the use of
differentiated feed resources. Investments in technologies related to herd feeding in HEL cluster improved the productivity by only 20% and the
cost per hectare by 95 USD ha-1 in comparison to IEL cluster. The main differences between farmers are because of the use of technologies related
to feeding and cost management. Therefore, before implementing a ... Presentar Todo |
|
Palabras claves : |
ANÁLISE DE CLUSTER; ANIMAL PRODUCTION; BOVINOS; CATTLE; CLUSTER ANALYSIS; CUSTO DE PRODUÇÃO; PRODUÇÃO ANIMAL; PRODUCTION COST. |
|
Thesagro : |
PRODUCCION ANIMAL. |
|
Asunto categoría : |
L01 Ganadería |
|
URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/13391/1/CR-Canozzi-et-al.-2019.pdf
|
|
Marc : |
LEADER 04478naa a2200325 a 4500
001 1060258
005 2020-01-21
008 2019 bl uuuu u00u1 u #d
022 $a0103-8478 On-line
024 7 $a10.1590/0103-8478cr20190030$2DOI
100 1 $aCANOZZI, M.E.A.
245 $aTypology of beef production systems according to bioeconomic efficiency in the south of Brazil. [Tipologia de sistemas de produção de carne bovina de acordo com a eficiência bioeconômica no sul do Brasil]¨.$h[electronic resource]
260 $c2019
500 $aArticle history: Received 01.14.19 / Approved 07.26.19/ Returned by the author 08.21.19.
520 $aABSTRACT: The objective of this study was to evaluate the bioeconomic efficiency of beef cattle production systems in the south of Brazil. A survey was conducted with 33 beef cattle farmers operating with complete cycle production systems in areas larger or equal to 900 ha. Answers were classified in two drivers, technology (TEC) and management (MAN), which were separated into subfactors with their respective components. Multiple correspondence analysis, Tukey test, cluster analysis, and Pearson correlation were the statistics procedures. The TEC components were above normal for Brazilian farmers, but the gross margin is still lower than that needed to generate financial resources for a proper remuneration of cattle farmer. Farmers were classified into three clusters according to bioeconomic efficiency: low (LEL), intermediate (IEL), or high-efficiency level (HEL). The TEC driver differentiated the LEL x HEL clusters and the MAN, mainly expressed in costs, the IEL x HEL. Positive correlation between age at first mating and age at slaughter in the HEL cluster explains the higher costs when compared to IEL because of the use of differentiated feed resources. Investments in technologies related to herd feeding in HEL cluster improved the productivity by only 20% and the cost per hectare by 95 USD ha-1 in comparison to IEL cluster. The main differences between farmers are because of the use of technologies related to feeding and cost management. Therefore, before implementing a new technology, an economic evaluation is necessary. RESUMO: O objetivo deste estudo foi avaliar a eficiência bioeconômica em sistemas de produção de bovinos de corte no sul do Brasil. A pesquisa foi realizada com 33 pecuaristas que operam com sistemas de produção baseado em ciclo completo, em áreas maiores ou iguais a 900 hectares. As respostas foram classificadas em dois fatores: tecnologia (TEC) e gestão (GES), os quais foram separados em subfatores com seus respectivos componentes. A análise de correspondência múltipla, teste de Tukey, análise de cluster e correlação de Pearson foram os procedimentos estatísticos. Os componentes do TEC estavam acima do normal para os pecuaristas brasileiros, mas a margem bruta ainda é menor do que a necessária para gerar recursos financeiros para uma remuneração adequada ao pecuarista. Os pecuaristas foram classificados em três grupos de acordo com a eficiência bioeconômica: baixo (BNE), intermediário (INE) ou alto nível de eficiência (ANE). O driver TEC diferenciou os clusters BNE x ANE e o GES, expresso principalmente em custos, o INE x ANE. A correlação positiva entre a idade no primeiro acasalamento e a idade ao abate no agrupamento ANE explica os custos mais elevados quando comparados aos INE, devido ao uso de recursos alimentares diferenciados. Os investimentos em tecnologias relacionadas à alimentação de rebanho no agrupamento ANE melhoraram a produtividade em apenas 20% e o custo por hectare em 95 USD ha-1 em comparação ao cluster INE. As principais diferenças entre os pecuaristas se devem ao uso de tecnologias relacionadas à alimentação e ao gerenciamento de custos. Portanto, antes de implementar uma nova tecnologia, uma avaliação econômica é necessária.
650 $aPRODUCCION ANIMAL
653 $aANÁLISE DE CLUSTER
653 $aANIMAL PRODUCTION
653 $aBOVINOS
653 $aCATTLE
653 $aCLUSTER ANALYSIS
653 $aCUSTO DE PRODUÇÃO
653 $aPRODUÇÃO ANIMAL
653 $aPRODUCTION COST
700 1 $aMARQUES, P.M.
700 1 $aTEIXEIRA, O. DE S.
700 1 $aPIMENTEL, C.M.M.
700 1 $aDILL, M.D.
700 1 $aBARCELLOS, J.O.J.
773 $tCiencia Rural, Santa Marìa, september 2019, vol.49, no.10,e20190030. OPEN ACCESS. Doi: 10.1590/0103-8478cr20190030
Descargar
Esconder MarcPresentar Marc Completo |
|
Registro original : |
INIA La Estanzuela (LE) |
|
|
Biblioteca
|
Identificación
|
Origen
|
Tipo / Formato
|
Clasificación
|
Cutter
|
Registro
|
Volumen
|
Estado
|
Volver
|
|
|
|
Registro completo
|
|
Biblioteca (s) : |
INIA La Estanzuela. |
|
Fecha actual : |
07/06/2019 |
|
Actualizado : |
05/09/2022 |
|
Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
|
Circulación / Nivel : |
Internacional - -- |
|
Autor : |
GIANNITTI, F.; CAFFARENA, D.; PESAVENTO, P.; UZAL, F.A.; MAYA, L.; FRAGA, M.; COLINA, R.; CASTELLS, M. |
|
Afiliación : |
FEDERICO GIANNITTI, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; RUBEN DARÍO CAFFARENA LEDESMA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; PATRICIO PESAVENTO, Pathology, Microbiology and Immunology Department, School of Veterinary Medicine, University of California, Davis, Davis, CA, United States.; FRANCISCO ALEJANDRO UZAL, Pathology, Microbiology and Immunology Department, School of Veterinary Medicine, University of California, Davis, Davis, CA, United States.; LETICIA MAYA, Laboratorio de Virología Molecular, Centro Universitario Regional (CENUR) Litoral Norte, Universidad de la República, Salto, Uruguay.; MARTIN FRAGA COTELO, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; RODNEY COLINA, Laboratorio de Virología Molecular, Centro Universitario Regional (CENUR) Litoral Norte, Universidad de la República, Salto, Uruguay.; MATÍAS CASTELLS BAUER, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay.//Laboratorio de Virología Molecular, Centro Universitario Regional (CENUR) Litoral Norte, Universidad de la República, Salto, Uruguay. |
|
Título : |
The first case of bovine astrovirus-associated encephalitis in the southern hemisphere (Uruguay), uncovers evidence of viral introduction to the Americas from Europe. |
|
Fecha de publicación : |
2019 |
|
Fuente / Imprenta : |
Frontiers in Microbiology, volumen 10, Article 1240, 04 June 2019. [OPEN ACCESS].Doi: https://doi.org/10.3389/fmicb.2019.01240 |
|
DOI : |
10.3389/fmicb.2019.01240 |
|
Idioma : |
Inglés |
|
Notas : |
Article history: Received: 22 March 2019//Accepted: 17 May 2019//Published: 04 June 2019. This work was funded by Grants PL-015 N-15156 from INIA and 158 from the ?Programa de Iniciación a la Investigación 2017? from ?Comisión Sectorial de Investigación Científica? (CSIC). MC and RDC acknowledge support from the ?Agencia Nacional de Investigación e Innovación? (ANII) and INIA, respectively, through Ph.D. scholarships. FG acknowledges support from ANII through mobility grant MOV_CA_2018_1_150021. |
|
Contenido : |
Abstract: Astrovirus species members of the Mamastrovirus genus (family Astroviridae) have been increasingly recognized as neuroinvasive pathogens in various mammals, including humans, mink, cattle, sheep, and pigs. While cases of astrovirus-associated encephalitis have been reported in North America, Europe, and Asia, their presence has never been documented in the Southern hemisphere. This paper describes a case of astrovirus-associated encephalitis in cattle in Uruguay that broadens the geographic distribution and genetic diversity of neuroinvasive astroviruses and provides phylogeographic evidence of viral introduction to the Americas from Europe. A 22-month-old Holstein steer from a farm in Colonia Department, Uruguay developed progressive neurological signs over a 3-days period before dying. Histopathological examination of the brain and proximal cervical spinal cord revealed disseminated, moderate to severe lymphocytic, histiocytic, and plasmacytic poliomeningoencephalomyelitis with neuronal necrosis. A Mamastrovirus strain in the CH13/NeuroS1 clade, that we called bovine astrovirus (BoAstV)-Neuro-Uy, was identified by reverse transcriptase PCR followed by nearly complete genome sequencing. Additionally, BoAstV was detected intralesionally in the brain by chromogenic RNA in situ hybridization within neuronal perikarya, axons and dendrites. Phylogenetic analysis of BoAstV-Neuro-Uy revealed a close relationship to neurotropic BoAstVs within the Virginia/Human-Mink-Ovine clade, which contains a growing cadre of neuroinvasive astroviruses. Analyzing the complete coding region of neuroinvasive BoAstVs sequences available in GenBank, we estimated an evolutionary rate of 4.27 × 10-4 (95% HPD 2.19?6.46 × 10-4) nucleotide substitutions/site/year. Phylogeographic analysis suggests that the common viral ancestor circulated in Europe between 1794?1940, and was introduced in Uruguay between 1849?1967, to later spread to North America and Japan. MenosAbstract: Astrovirus species members of the Mamastrovirus genus (family Astroviridae) have been increasingly recognized as neuroinvasive pathogens in various mammals, including humans, mink, cattle, sheep, and pigs. While cases of astrovirus-associated encephalitis have been reported in North America, Europe, and Asia, their presence has never been documented in the Southern hemisphere. This paper describes a case of astrovirus-associated encephalitis in cattle in Uruguay that broadens the geographic distribution and genetic diversity of neuroinvasive astroviruses and provides phylogeographic evidence of viral introduction to the Americas from Europe. A 22-month-old Holstein steer from a farm in Colonia Department, Uruguay developed progressive neurological signs over a 3-days period before dying. Histopathological examination of the brain and proximal cervical spinal cord revealed disseminated, moderate to severe lymphocytic, histiocytic, and plasmacytic poliomeningoencephalomyelitis with neuronal necrosis. A Mamastrovirus strain in the CH13/NeuroS1 clade, that we called bovine astrovirus (BoAstV)-Neuro-Uy, was identified by reverse transcriptase PCR followed by nearly complete genome sequencing. Additionally, BoAstV was detected intralesionally in the brain by chromogenic RNA in situ hybridization within neuronal perikarya, axons and dendrites. Phylogenetic analysis of BoAstV-Neuro-Uy revealed a close relationship to neurotropic BoAstVs within the Virginia/Human-Mink-Ovine... Presentar Todo |
|
Palabras claves : |
BOVINE ASTROVIRUS; CATTLE; ENCEPHALITIS; ENFERMEDADES INFECCIOSAS; INFECTIOUS DISEASE; MAMASTROVIRUS; PHYLOGEOGRAPHY; PLATAFORMA SALUD ANIMAL. |
|
Thesagro : |
SUD AMERICA; URUGUAY. |
|
Asunto categoría : |
E16 Enfermedades de los animales |
|
URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/16714/1/fmicb-10-01240.pdf
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6559012/pdf/fmicb-10-01240.pdf
|
|
Marc : |
LEADER 03592naa a2200349 a 4500
001 1059833
005 2022-09-05
008 2019 bl uuuu u00u1 u #d
024 7 $a10.3389/fmicb.2019.01240$2DOI
100 1 $aGIANNITTI, F.
245 $aThe first case of bovine astrovirus-associated encephalitis in the southern hemisphere (Uruguay), uncovers evidence of viral introduction to the Americas from Europe.$h[electronic resource]
260 $c2019
500 $aArticle history: Received: 22 March 2019//Accepted: 17 May 2019//Published: 04 June 2019. This work was funded by Grants PL-015 N-15156 from INIA and 158 from the ?Programa de Iniciación a la Investigación 2017? from ?Comisión Sectorial de Investigación Científica? (CSIC). MC and RDC acknowledge support from the ?Agencia Nacional de Investigación e Innovación? (ANII) and INIA, respectively, through Ph.D. scholarships. FG acknowledges support from ANII through mobility grant MOV_CA_2018_1_150021.
520 $aAbstract: Astrovirus species members of the Mamastrovirus genus (family Astroviridae) have been increasingly recognized as neuroinvasive pathogens in various mammals, including humans, mink, cattle, sheep, and pigs. While cases of astrovirus-associated encephalitis have been reported in North America, Europe, and Asia, their presence has never been documented in the Southern hemisphere. This paper describes a case of astrovirus-associated encephalitis in cattle in Uruguay that broadens the geographic distribution and genetic diversity of neuroinvasive astroviruses and provides phylogeographic evidence of viral introduction to the Americas from Europe. A 22-month-old Holstein steer from a farm in Colonia Department, Uruguay developed progressive neurological signs over a 3-days period before dying. Histopathological examination of the brain and proximal cervical spinal cord revealed disseminated, moderate to severe lymphocytic, histiocytic, and plasmacytic poliomeningoencephalomyelitis with neuronal necrosis. A Mamastrovirus strain in the CH13/NeuroS1 clade, that we called bovine astrovirus (BoAstV)-Neuro-Uy, was identified by reverse transcriptase PCR followed by nearly complete genome sequencing. Additionally, BoAstV was detected intralesionally in the brain by chromogenic RNA in situ hybridization within neuronal perikarya, axons and dendrites. Phylogenetic analysis of BoAstV-Neuro-Uy revealed a close relationship to neurotropic BoAstVs within the Virginia/Human-Mink-Ovine clade, which contains a growing cadre of neuroinvasive astroviruses. Analyzing the complete coding region of neuroinvasive BoAstVs sequences available in GenBank, we estimated an evolutionary rate of 4.27 × 10-4 (95% HPD 2.19?6.46 × 10-4) nucleotide substitutions/site/year. Phylogeographic analysis suggests that the common viral ancestor circulated in Europe between 1794?1940, and was introduced in Uruguay between 1849?1967, to later spread to North America and Japan.
650 $aSUD AMERICA
650 $aURUGUAY
653 $aBOVINE ASTROVIRUS
653 $aCATTLE
653 $aENCEPHALITIS
653 $aENFERMEDADES INFECCIOSAS
653 $aINFECTIOUS DISEASE
653 $aMAMASTROVIRUS
653 $aPHYLOGEOGRAPHY
653 $aPLATAFORMA SALUD ANIMAL
700 1 $aCAFFARENA, D.
700 1 $aPESAVENTO, P.
700 1 $aUZAL, F.A.
700 1 $aMAYA, L.
700 1 $aFRAGA, M.
700 1 $aCOLINA, R.
700 1 $aCASTELLS, M.
773 $tFrontiers in Microbiology, volumen 10, Article 1240, 04 June 2019. [OPEN ACCESS].Doi: https://doi.org/10.3389/fmicb.2019.01240
Descargar
Esconder MarcPresentar Marc Completo |
|
Registro original : |
INIA La Estanzuela (LE) |
|
|
Biblioteca
|
Identificación
|
Origen
|
Tipo / Formato
|
Clasificación
|
Cutter
|
Registro
|
Volumen
|
Estado
|
Volver
|
| Expresión de búsqueda válido. Check! |
|
|
