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Registro Completo |
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Biblioteca(s): |
Embrapa Meio Ambiente. |
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Data corrente: |
08/01/2019 |
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Data da última atualização: |
30/10/2019 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
SILVA, M. G. da; PACKER, A. P.; SAMPAIO, F. G.; SILVA, C. M. da; SILVA, J. L. da. |
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Afiliação: |
Marcelo G. da Silva; ANA PAULA CONTADOR PACKER, CNPMA; FERNANDA GARCIA SAMPAIO, CNPMA; Consuelo Marques da Silva; Juliana Lopes da Silva. |
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Título: |
Climate change and fish farming. |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
In: LATIN AMERICA AND CARIBBEAN ECOSYSTEM SERVICES PARTNERSHIP CONFERENCE, 2., 2018, Campinas. Book of abstracts... Campinas: Ecosystem Services Partnership (ESP), 2018. |
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Idioma: |
Português |
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Conteúdo: |
The knowledge of the environmental impact of an activity can be seen as a market differential. Agricultural activities such as cattle raising have been heavily taxed because they are considered high greenhouse gases (GHG) emissions, forcing the market to adopt mitigating measures. Little is known about its emission and its real impact of aquaculture on climate change. The increase of GHG in the atmosphere results in alterations like the increase of the temperature and changes in the precipitation with direct effects in the aquaculture as alterations in the growth, reproduction and fish mortality. A pioneer work was done to quantify methane (CH4) and carbon dioxide (CO2) fluxes of fish farming areas with Nile tilapia (Oreochromis niloticus) in net cages. The GHG fluxes were measured in fish farms at the tropical reservoirs Furnas (FHR), Castanhão (CAS) and Chavantes (CHV). The CH4 was classified by the mechanism for gas transport through the water column as diffusive flux or bubble flux. The comparison between the points with fish net cages and control (without net cages) in FHR and CHV suggest that fish farming did not impact the emission of CH4 by diffusive transport. In the CAS, high CH4 diffusive fluxes were observed in sites with fish net cages. The mean CH4 bubble flux in CAS and CHV was higher in areas with fish net cages when compared to areas free of fish production suggesting the influence of fish farming on the CH4 bubble fluxes. In the FHR, the decrease in depth during the drought period was associated as the factor with the greatest impact on the CH4 bubbles emission. The CO2 sink in CAS and emission in CHV suggest that characteristics of the reservoir, as chlorophyll-a and turbidity have a greater impact factor to CO2 emission than the fish farming. MenosThe knowledge of the environmental impact of an activity can be seen as a market differential. Agricultural activities such as cattle raising have been heavily taxed because they are considered high greenhouse gases (GHG) emissions, forcing the market to adopt mitigating measures. Little is known about its emission and its real impact of aquaculture on climate change. The increase of GHG in the atmosphere results in alterations like the increase of the temperature and changes in the precipitation with direct effects in the aquaculture as alterations in the growth, reproduction and fish mortality. A pioneer work was done to quantify methane (CH4) and carbon dioxide (CO2) fluxes of fish farming areas with Nile tilapia (Oreochromis niloticus) in net cages. The GHG fluxes were measured in fish farms at the tropical reservoirs Furnas (FHR), Castanhão (CAS) and Chavantes (CHV). The CH4 was classified by the mechanism for gas transport through the water column as diffusive flux or bubble flux. The comparison between the points with fish net cages and control (without net cages) in FHR and CHV suggest that fish farming did not impact the emission of CH4 by diffusive transport. In the CAS, high CH4 diffusive fluxes were observed in sites with fish net cages. The mean CH4 bubble flux in CAS and CHV was higher in areas with fish net cages when compared to areas free of fish production suggesting the influence of fish farming on the CH4 bubble fluxes. In the FHR, the decrease in depth d... Mostrar Tudo |
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Palavras-Chave: |
Tropical reservoirs. |
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Thesaurus Nal: |
Climate change; Fish farms; Greenhouse gas emissions; Water reservoirs. |
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Categoria do assunto: |
A Sistemas de Cultivo |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/190211/1/RA-PackerAPC-et-al-LAC2018.pdf
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Marc: |
LEADER 02514nam a2200217 a 4500
001 2103247
005 2019-10-30
008 2018 bl uuuu u00u1 u #d
100 1 $aSILVA, M. G. da
245 $aClimate change and fish farming.$h[electronic resource]
260 $aIn: LATIN AMERICA AND CARIBBEAN ECOSYSTEM SERVICES PARTNERSHIP CONFERENCE, 2., 2018, Campinas. Book of abstracts... Campinas: Ecosystem Services Partnership (ESP)$c2018
520 $aThe knowledge of the environmental impact of an activity can be seen as a market differential. Agricultural activities such as cattle raising have been heavily taxed because they are considered high greenhouse gases (GHG) emissions, forcing the market to adopt mitigating measures. Little is known about its emission and its real impact of aquaculture on climate change. The increase of GHG in the atmosphere results in alterations like the increase of the temperature and changes in the precipitation with direct effects in the aquaculture as alterations in the growth, reproduction and fish mortality. A pioneer work was done to quantify methane (CH4) and carbon dioxide (CO2) fluxes of fish farming areas with Nile tilapia (Oreochromis niloticus) in net cages. The GHG fluxes were measured in fish farms at the tropical reservoirs Furnas (FHR), Castanhão (CAS) and Chavantes (CHV). The CH4 was classified by the mechanism for gas transport through the water column as diffusive flux or bubble flux. The comparison between the points with fish net cages and control (without net cages) in FHR and CHV suggest that fish farming did not impact the emission of CH4 by diffusive transport. In the CAS, high CH4 diffusive fluxes were observed in sites with fish net cages. The mean CH4 bubble flux in CAS and CHV was higher in areas with fish net cages when compared to areas free of fish production suggesting the influence of fish farming on the CH4 bubble fluxes. In the FHR, the decrease in depth during the drought period was associated as the factor with the greatest impact on the CH4 bubbles emission. The CO2 sink in CAS and emission in CHV suggest that characteristics of the reservoir, as chlorophyll-a and turbidity have a greater impact factor to CO2 emission than the fish farming.
650 $aClimate change
650 $aFish farms
650 $aGreenhouse gas emissions
650 $aWater reservoirs
653 $aTropical reservoirs
700 1 $aPACKER, A. P.
700 1 $aSAMPAIO, F. G.
700 1 $aSILVA, C. M. da
700 1 $aSILVA, J. L. da
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Registro original: |
Embrapa Meio Ambiente (CNPMA) |
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Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
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Registro Completo
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Biblioteca(s): |
Embrapa Clima Temperado; Embrapa Rondônia. |
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Data corrente: |
08/02/2017 |
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Data da última atualização: |
10/11/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 2 |
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Autoria: |
CAMPOS, F. T. de; RINCON, J. A. A.; ACOSTA, D. A. V.; SILVEIRA, P. A. S.; PRADIEÉ, J.; CORRÊA, M. N.; GASPERIN, B. G.; PFEIFER, L. F. M.; BARROS, C. C.; PEGORARO, L. M. C.; SCHNEIDER, A. |
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Afiliação: |
Felipe Terres de Campos, UFPel; Joao Aveiro Alvarado Rincon, UFPel; Diego Andres Velasco Acosta, CORPOICA; Pedro Augusto Silva Silveira, UFPel; Jorgea Pradieé, Embrapa Clima Temperado; Marcio Nunes Corrêa, UFPel; Bernardo Garziera Gasperin, UFPel; LUIZ FRANCISCO MACHADO PFEIFER, CPAF-Rondonia; Carlos Castilho Barros, UFPel; LIGIA MARGARETH CANTARELLI PEGORARO, CPACT; Augusto Schneider, UFPel. |
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Título: |
The acute effect of intravenous lipopolysaccharide injection on serumand intrafollicular HDL components and gene expression in granulosacells of the bovine dominant follicle. |
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Ano de publicação: |
2017 |
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Fonte/Imprenta: |
Theriogenology, v. 89, p. 244 - 249, 2017. |
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Idioma: |
Inglês |
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Conteúdo: |
The aim of this study was to evaluate the effect of an acute systemic inflammatory response induced by lipopolysaccharide (LPS) in the serum and follicular fluid (FF) high-density lipoprotein (HDL) components, hormone concentrations and granulosa cell gene expression. For this purpose, twenty non-lactating Jersey dairy cows were submitted to a progesterone (P4) ? estradiol (E2) based synchronization protocol. Cows received a single i.v. dose of LPS (2.5 μg/kg of body weight) or saline solution (CTL Group) 2 h after P4 insert removal. Blood, granulosa cells and FF samples were collected six hours after LPS injection. Five hours after LPS injection rectal temperature was increased in LPS (P < 0.0001, 40.4 ± 0.1 °C) compared to the CTL cows (38.8 ± 0.1 °C). Serum PON1 activity was reduced by LPS injection (130.2 ± 5.1 vs. 99.6 ± 3.3 U/mL; P < 0.001), as well as HDL-cholesterol concentrations (70.3 ± 5.3 vs. 50.1 ± 6.2 mg/dL; P < 0.05). The FF E2 and P4 concentrations were not different between groups (P > 0.05). The PON1 activity in the FF was also decreased by LPS injection (P = 0.01). In comparison to CTL group, cows injected with LPS had a ten fold reduction in STAR, TLR4 and TNF mRNA expression (P < 0.05). In conclusion, an intravenous LPS challenge in cows induced an acute systemic inflammatory response reducing HDL and its components in serum but not in the FF. Only PON1 activity serum reduction was reflected in the FF in the short term. Additionally, steroidogenic and inflammatory genes had reduced expression in the granulosa cells. MenosThe aim of this study was to evaluate the effect of an acute systemic inflammatory response induced by lipopolysaccharide (LPS) in the serum and follicular fluid (FF) high-density lipoprotein (HDL) components, hormone concentrations and granulosa cell gene expression. For this purpose, twenty non-lactating Jersey dairy cows were submitted to a progesterone (P4) ? estradiol (E2) based synchronization protocol. Cows received a single i.v. dose of LPS (2.5 μg/kg of body weight) or saline solution (CTL Group) 2 h after P4 insert removal. Blood, granulosa cells and FF samples were collected six hours after LPS injection. Five hours after LPS injection rectal temperature was increased in LPS (P < 0.0001, 40.4 ± 0.1 °C) compared to the CTL cows (38.8 ± 0.1 °C). Serum PON1 activity was reduced by LPS injection (130.2 ± 5.1 vs. 99.6 ± 3.3 U/mL; P < 0.001), as well as HDL-cholesterol concentrations (70.3 ± 5.3 vs. 50.1 ± 6.2 mg/dL; P < 0.05). The FF E2 and P4 concentrations were not different between groups (P > 0.05). The PON1 activity in the FF was also decreased by LPS injection (P = 0.01). In comparison to CTL group, cows injected with LPS had a ten fold reduction in STAR, TLR4 and TNF mRNA expression (P < 0.05). In conclusion, an intravenous LPS challenge in cows induced an acute systemic inflammatory response reducing HDL and its components in serum but not in the FF. Only PON1 activity serum reduction was reflected in the FF in the short term. Additionally, steroidogenic a... Mostrar Tudo |
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Palavras-Chave: |
Esteroidogênese; PON1. |
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Thesagro: |
Colesterol; Inflamação. |
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Thesaurus NAL: |
cholesterol; inflammation; steroidogenesis. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/227597/1/cpafro-17770.pdf
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Marc: |
LEADER 02572naa a2200325 a 4500
001 2063230
005 2021-11-10
008 2017 bl uuuu u00u1 u #d
100 1 $aCAMPOS, F. T. de
245 $aThe acute effect of intravenous lipopolysaccharide injection on serumand intrafollicular HDL components and gene expression in granulosacells of the bovine dominant follicle.$h[electronic resource]
260 $c2017
520 $aThe aim of this study was to evaluate the effect of an acute systemic inflammatory response induced by lipopolysaccharide (LPS) in the serum and follicular fluid (FF) high-density lipoprotein (HDL) components, hormone concentrations and granulosa cell gene expression. For this purpose, twenty non-lactating Jersey dairy cows were submitted to a progesterone (P4) ? estradiol (E2) based synchronization protocol. Cows received a single i.v. dose of LPS (2.5 μg/kg of body weight) or saline solution (CTL Group) 2 h after P4 insert removal. Blood, granulosa cells and FF samples were collected six hours after LPS injection. Five hours after LPS injection rectal temperature was increased in LPS (P < 0.0001, 40.4 ± 0.1 °C) compared to the CTL cows (38.8 ± 0.1 °C). Serum PON1 activity was reduced by LPS injection (130.2 ± 5.1 vs. 99.6 ± 3.3 U/mL; P < 0.001), as well as HDL-cholesterol concentrations (70.3 ± 5.3 vs. 50.1 ± 6.2 mg/dL; P < 0.05). The FF E2 and P4 concentrations were not different between groups (P > 0.05). The PON1 activity in the FF was also decreased by LPS injection (P = 0.01). In comparison to CTL group, cows injected with LPS had a ten fold reduction in STAR, TLR4 and TNF mRNA expression (P < 0.05). In conclusion, an intravenous LPS challenge in cows induced an acute systemic inflammatory response reducing HDL and its components in serum but not in the FF. Only PON1 activity serum reduction was reflected in the FF in the short term. Additionally, steroidogenic and inflammatory genes had reduced expression in the granulosa cells.
650 $acholesterol
650 $ainflammation
650 $asteroidogenesis
650 $aColesterol
650 $aInflamação
653 $aEsteroidogênese
653 $aPON1
700 1 $aRINCON, J. A. A.
700 1 $aACOSTA, D. A. V.
700 1 $aSILVEIRA, P. A. S.
700 1 $aPRADIEÉ, J.
700 1 $aCORRÊA, M. N.
700 1 $aGASPERIN, B. G.
700 1 $aPFEIFER, L. F. M.
700 1 $aBARROS, C. C.
700 1 $aPEGORARO, L. M. C.
700 1 $aSCHNEIDER, A.
773 $tTheriogenology$gv. 89, p. 244 - 249, 2017.
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Registro original: |
Embrapa Rondônia (CPAF-RO) |
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