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Registro Completo |
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Biblioteca(s): |
Embrapa Suínos e Aves. |
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Data corrente: |
30/05/2022 |
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Data da última atualização: |
31/05/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
VILAS-BOAS, J.; KLERKX, L.; LIE, R. |
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Afiliação: |
JEAN CARLOS PORTO VILAS BOAS SOUZA, CNPSA; LAURENS KLERKX, Wageningen University; RICO LIE, Wageningen University. |
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Título: |
Connecting science, policy, and practice in agri-food system transformation: The role of boundary infrastructures in the evolution of Brazilian pig production. |
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Ano de publicação: |
2022 |
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Fonte/Imprenta: |
Journal of Rural Studies, v. 89, p. 171-185, Jan. 2022. |
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DOI: |
https://doi.org/10.1016/j.jrurstud.2021.11.025 |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: Scholars have often applied the concept of boundary work and its conceptual progeny to explain how science, policy, and practice collaborate to introduce change into agrifood systems. However, previous studies focused primarily on specific boundary elements (i.e., boundary spanners, boundary organizations, and boundary objects) or particular innovation processes (in terms of scope or timescale) within broad transformative change. This study aims to deepen the understanding of long-term transformative processes in agri-food systems by looking at how boundary infrastructures influenced the evolution of the Brazilian pig production system from a setting in which it mainly produced pork lard for a domestic market to a setting of being integrated in global supply chains and following international standards. Mainly, we add to the extant literature by highlighting that boundary infrastructures influenced the longterm transformative process experienced by BPPS by establishing a space where science-policy-practice interactions legitimized particular visions and values and instilled responsibility and accountability to spur various joint actions in support of innovation. We also contribute to the extant literature by showing that boundary infrastructures evolution in BPPS was incremental, long-term, multi-site, and with intertwined leverage. Boundary infrastructures provide structuration to system transformation and are also (re)structured while transitions unfold. Since boundary infrastructures have a certain directionality and may become hegemonic and exclusionary, this requires sensitiveness to the need to reorient a hegemonic boundary infrastructure or create a parallel one. Our study deepens the understanding of how coordination unfolds in long-term transformative processes, a topic deemed of interest given current debates on promoting agri-food systems transformation. We argue that better awareness of boundary infrastructures in which science-policy-practice interactions occur can help guide the direction of innovation to support sustainability transitions in agri-food systems. MenosAbstract: Scholars have often applied the concept of boundary work and its conceptual progeny to explain how science, policy, and practice collaborate to introduce change into agrifood systems. However, previous studies focused primarily on specific boundary elements (i.e., boundary spanners, boundary organizations, and boundary objects) or particular innovation processes (in terms of scope or timescale) within broad transformative change. This study aims to deepen the understanding of long-term transformative processes in agri-food systems by looking at how boundary infrastructures influenced the evolution of the Brazilian pig production system from a setting in which it mainly produced pork lard for a domestic market to a setting of being integrated in global supply chains and following international standards. Mainly, we add to the extant literature by highlighting that boundary infrastructures influenced the longterm transformative process experienced by BPPS by establishing a space where science-policy-practice interactions legitimized particular visions and values and instilled responsibility and accountability to spur various joint actions in support of innovation. We also contribute to the extant literature by showing that boundary infrastructures evolution in BPPS was incremental, long-term, multi-site, and with intertwined leverage. Boundary infrastructures provide structuration to system transformation and are also (re)structured while transitions unfold. Since bo... Mostrar Tudo |
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Palavras-Chave: |
Agri-food sectors; Boundary work; Brasil; Deep transitions; Direcionalidade; Directionality; Food systems transformation; Intermediaries; Intermediários; Setores agroalimentares; Sustainability transitions; Trabalho de fronteira; Transformação de sistemas alimentares; Transições de sustentabilidade; Transições profundas. |
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Thesaurus Nal: |
Brazil. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1143559/1/Art-Jean.pdf
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Marc: |
LEADER 03280naa a2200349 a 4500
001 2143559
005 2022-05-31
008 2022 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1016/j.jrurstud.2021.11.025$2DOI
100 1 $aVILAS-BOAS, J.
245 $aConnecting science, policy, and practice in agri-food system transformation$bThe role of boundary infrastructures in the evolution of Brazilian pig production.$h[electronic resource]
260 $c2022
520 $aAbstract: Scholars have often applied the concept of boundary work and its conceptual progeny to explain how science, policy, and practice collaborate to introduce change into agrifood systems. However, previous studies focused primarily on specific boundary elements (i.e., boundary spanners, boundary organizations, and boundary objects) or particular innovation processes (in terms of scope or timescale) within broad transformative change. This study aims to deepen the understanding of long-term transformative processes in agri-food systems by looking at how boundary infrastructures influenced the evolution of the Brazilian pig production system from a setting in which it mainly produced pork lard for a domestic market to a setting of being integrated in global supply chains and following international standards. Mainly, we add to the extant literature by highlighting that boundary infrastructures influenced the longterm transformative process experienced by BPPS by establishing a space where science-policy-practice interactions legitimized particular visions and values and instilled responsibility and accountability to spur various joint actions in support of innovation. We also contribute to the extant literature by showing that boundary infrastructures evolution in BPPS was incremental, long-term, multi-site, and with intertwined leverage. Boundary infrastructures provide structuration to system transformation and are also (re)structured while transitions unfold. Since boundary infrastructures have a certain directionality and may become hegemonic and exclusionary, this requires sensitiveness to the need to reorient a hegemonic boundary infrastructure or create a parallel one. Our study deepens the understanding of how coordination unfolds in long-term transformative processes, a topic deemed of interest given current debates on promoting agri-food systems transformation. We argue that better awareness of boundary infrastructures in which science-policy-practice interactions occur can help guide the direction of innovation to support sustainability transitions in agri-food systems.
650 $aBrazil
653 $aAgri-food sectors
653 $aBoundary work
653 $aBrasil
653 $aDeep transitions
653 $aDirecionalidade
653 $aDirectionality
653 $aFood systems transformation
653 $aIntermediaries
653 $aIntermediários
653 $aSetores agroalimentares
653 $aSustainability transitions
653 $aTrabalho de fronteira
653 $aTransformação de sistemas alimentares
653 $aTransições de sustentabilidade
653 $aTransições profundas
700 1 $aKLERKX, L.
700 1 $aLIE, R.
773 $tJournal of Rural Studies$gv. 89, p. 171-185, Jan. 2022.
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Registro original: |
Embrapa Suínos e Aves (CNPSA) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Gado de Leite. Para informações adicionais entre em contato com cnpgl.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Gado de Leite. |
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Data corrente: |
21/02/2014 |
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Data da última atualização: |
05/02/2024 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 3 |
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Autoria: |
POLISSENI, J.; GRÁZIB, J. G. V. de; GUERRA, M. DE O.; MILEN, L. C.; CAMARGO, L. S. de A.; PETERS, V. M. |
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Afiliação: |
JULIANA POLISSENI, UFJF; JOÃO GABRIEL VIANA DE GRÁZIB, UFJF; MARTHA DE OLIVEIRA GUERRA, UFJF; LARISSA CABRAL MILEN, UFJF; LUIZ SERGIO DE ALMEIDA CAMARGO, CNPGL; VERA MARIA PETERS, UFJF. |
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Título: |
Impact of the use of gonadotropins on embryonic development - a rat model. |
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Ano de publicação: |
2013 |
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Fonte/Imprenta: |
JBRA Assisted Reproduction, v. 17, n. 1, p. 32-36, 2013. |
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Idioma: |
Inglês |
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Conteúdo: |
Objective: To evaluate the impact of in vivo superovulation on early embryonic development in a rat model. Methods: Experiment 1: Female Wistar rats were superovulated with injection of PMSG followed by hCG 48 hours later. Embryos were collected 24 h after hCG administration. Experiment 2: Female Wistar rats (n=16) were distrbuted to a control or superovulated group. Embryos were collected 48 and 72 h after hCG administration. The total number of embryonic structures and the embryo quality grades were analyzed by Chi-squared test. Between-group differences in ovarian weight were assessed by Student’s t-test. Results: Experiment 1: 931 embryos were collected from 66 animals, with a mean of 16.3±9.5 structures per animal. The superovulation was successful in 89.4% of the animals, and 98.2% of the embryos collected from superovulated animals were viable. Experiment 2: The superovulated group had heavier ovaries and produced more embryos than the control group (P < 0.001); however, these embryos contained fewer cells than controls at 72 hours after hCG administration (P<0.001). A greater percentage of embryos from the superovulated group were classified as grade I or grade II relative to embryos from the control group (P < 0.001 and P = 0.008, respectively). Conclusion: Superovulation was successful in the Wistar rat model and resulted in a greater number of embryos collected per animal. However, embryos produced as a result of superovulation developed more slowly than control embryos. MenosObjective: To evaluate the impact of in vivo superovulation on early embryonic development in a rat model. Methods: Experiment 1: Female Wistar rats were superovulated with injection of PMSG followed by hCG 48 hours later. Embryos were collected 24 h after hCG administration. Experiment 2: Female Wistar rats (n=16) were distrbuted to a control or superovulated group. Embryos were collected 48 and 72 h after hCG administration. The total number of embryonic structures and the embryo quality grades were analyzed by Chi-squared test. Between-group differences in ovarian weight were assessed by Student’s t-test. Results: Experiment 1: 931 embryos were collected from 66 animals, with a mean of 16.3±9.5 structures per animal. The superovulation was successful in 89.4% of the animals, and 98.2% of the embryos collected from superovulated animals were viable. Experiment 2: The superovulated group had heavier ovaries and produced more embryos than the control group (P < 0.001); however, these embryos contained fewer cells than controls at 72 hours after hCG administration (P<0.001). A greater percentage of embryos from the superovulated group were classified as grade I or grade II relative to embryos from the control group (P < 0.001 and P = 0.008, respectively). Conclusion: Superovulation was successful in the Wistar rat model and resulted in a greater number of embryos collected per animal. However, embryos produced as a result of superovulation developed more slowly than control e... Mostrar Tudo |
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Palavras-Chave: |
Animal model; Embryo development; Embryo grade. |
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Thesaurus NAL: |
superovulation. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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Marc: |
LEADER 02182naa a2200229 a 4500
001 1980786
005 2024-02-05
008 2013 bl uuuu u00u1 u #d
100 1 $aPOLISSENI, J.
245 $aImpact of the use of gonadotropins on embryonic development - a rat model.$h[electronic resource]
260 $c2013
520 $aObjective: To evaluate the impact of in vivo superovulation on early embryonic development in a rat model. Methods: Experiment 1: Female Wistar rats were superovulated with injection of PMSG followed by hCG 48 hours later. Embryos were collected 24 h after hCG administration. Experiment 2: Female Wistar rats (n=16) were distrbuted to a control or superovulated group. Embryos were collected 48 and 72 h after hCG administration. The total number of embryonic structures and the embryo quality grades were analyzed by Chi-squared test. Between-group differences in ovarian weight were assessed by Student’s t-test. Results: Experiment 1: 931 embryos were collected from 66 animals, with a mean of 16.3±9.5 structures per animal. The superovulation was successful in 89.4% of the animals, and 98.2% of the embryos collected from superovulated animals were viable. Experiment 2: The superovulated group had heavier ovaries and produced more embryos than the control group (P < 0.001); however, these embryos contained fewer cells than controls at 72 hours after hCG administration (P<0.001). A greater percentage of embryos from the superovulated group were classified as grade I or grade II relative to embryos from the control group (P < 0.001 and P = 0.008, respectively). Conclusion: Superovulation was successful in the Wistar rat model and resulted in a greater number of embryos collected per animal. However, embryos produced as a result of superovulation developed more slowly than control embryos.
650 $asuperovulation
653 $aAnimal model
653 $aEmbryo development
653 $aEmbryo grade
700 1 $aGRÁZIB, J. G. V. de
700 1 $aGUERRA, M. DE O.
700 1 $aMILEN, L. C.
700 1 $aCAMARGO, L. S. de A.
700 1 $aPETERS, V. M.
773 $tJBRA Assisted Reproduction$gv. 17, n. 1, p. 32-36, 2013.
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