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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 : |
23/09/2019 |
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Actualizado : |
23/09/2019 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Autor : |
NIELL, S.; JESÚS F.; DÍAZ , R.; MENDOZA, Y.; NOTTE, G.; SANTOS,E.; GÉREZ, N.; VERÓNICA, M.; CANCELA, H. |
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Afiliación : |
SILVINA NIELL, Universidad de la República, CENUR Litoral Norte Sede Paysandú, DQL, PAAP, Ruta 3 km 363, Paysandú, Uruguay.; FLORENCIA JESÚS, Universidad de la República, CENUR Litoral Norte Sede Paysandú, DQL, PAAP, Ruta 3 km 363, Paysandú, Uruguay.; ROSANA DÍAZ, Ministerio Ganadería Agricultura y Pesca-DIGEGRA Montevideo, Uruguay; YAMANDU MENDOZA SPINA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; GASTÓN NOTTE, Universidad de la República, CENUR Litoral Norte Sede Paysandú, DQL, PAAP, Ruta 3 km 363, Paysandú, Uruguay.; ESTELA SANTOS, Universidad de la República, Facultad de Ciencias, Sección Entomología, Iguá esq. Mataojo, Montevideo, Uruguay.; NATALIA GÉREZ, Universidad de la República, Facultad de Química, Cátedra de Farmacognosia, Gral. Flores 2124, Montevideo, Uruguay.; MARIA VERÓNICA, Cesio Universidad de la República, CENUR Litoral Norte Sede Paysandú, DQL, PAAP, Ruta 3 km 363, Paysandú, Uruguay; HÉCTOR CANCELA, Universidad de la República, Facultad de Ingeniería, Instituto de Computación, Montevideo, Uruguay. |
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Título : |
Agroecology environment quality quotient (AEQ), an indicator of both, the beehive fitness and the contamination level of the environment by pesticides |
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Fecha de publicación : |
2019 |
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Fuente / Imprenta : |
Ecological Indicators, November 2019, Volume 106, Article number 105448. |
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DOI : |
10.1016/j.ecolind.2019.105448 |
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Idioma : |
Inglés |
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Notas : |
Article history: Received 2 March 2019/ Revised 3 May 2019/ Accepted 29 May 2019/ Available online 20 June 2019. |
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Contenido : |
Abstract:Three years pesticide residues monitoring data in pollen, wax, bees and honey from sentinel apiaries in different agroecosystems in Uruguay were used for meta analysis. Support vector machines (SVM) algorithm was used previously to classify environments and is the basis of the present work. An useful indicator was developed to classify the contamination status of both beehives and associated environment. The index is a quotient between hive simple demographic parameters and the sum of toxic units for each pesticide found in it. The Agroecology Environment Quality quotient (AEQ) can be scaled in three different levels. When it is below 1, the hive will hardly develop in such environment. AEQ values between 1 and 2 indicate that the hive could have some restrictions to develop in such environment due to pesticide contamination but probably it will be productive. In the cases where the index is above 2, the hive will develop well in the environment where it is located. AEQ permits simultaneously to obtain different information. These are: the surveillance of good agricultural practices accomplishment in agroecosystems, the selection of the best environment to perform apicultural activities as well as to monitor the productivity and development of the beehives. |
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Palabras claves : |
AGROECOSYSTEMS; BEES; CALIDAD DEL MEDIO AMBIENTE AGROECOLÓGICO (AEQ); INDICATORS; NIVEL DE CONTAMINACIÓN; PESTICIDAS; PESTICIDES; RISKS. |
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Thesagro : |
ABEJAS. |
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Asunto categoría : |
T01 Polución |
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Marc : |
LEADER 02431naa a2200349 a 4500
001 1060205
005 2019-09-23
008 2019 bl uuuu u00u1 u #d
024 7 $a10.1016/j.ecolind.2019.105448$2DOI
100 1 $aNIELL, S.
245 $aAgroecology environment quality quotient (AEQ), an indicator of both, the beehive fitness and the contamination level of the environment by pesticides$h[electronic resource]
260 $c2019
500 $aArticle history: Received 2 March 2019/ Revised 3 May 2019/ Accepted 29 May 2019/ Available online 20 June 2019.
520 $aAbstract:Three years pesticide residues monitoring data in pollen, wax, bees and honey from sentinel apiaries in different agroecosystems in Uruguay were used for meta analysis. Support vector machines (SVM) algorithm was used previously to classify environments and is the basis of the present work. An useful indicator was developed to classify the contamination status of both beehives and associated environment. The index is a quotient between hive simple demographic parameters and the sum of toxic units for each pesticide found in it. The Agroecology Environment Quality quotient (AEQ) can be scaled in three different levels. When it is below 1, the hive will hardly develop in such environment. AEQ values between 1 and 2 indicate that the hive could have some restrictions to develop in such environment due to pesticide contamination but probably it will be productive. In the cases where the index is above 2, the hive will develop well in the environment where it is located. AEQ permits simultaneously to obtain different information. These are: the surveillance of good agricultural practices accomplishment in agroecosystems, the selection of the best environment to perform apicultural activities as well as to monitor the productivity and development of the beehives.
650 $aABEJAS
653 $aAGROECOSYSTEMS
653 $aBEES
653 $aCALIDAD DEL MEDIO AMBIENTE AGROECOLÓGICO (AEQ)
653 $aINDICATORS
653 $aNIVEL DE CONTAMINACIÓN
653 $aPESTICIDAS
653 $aPESTICIDES
653 $aRISKS
700 1 $aJESÚS F.
700 1 $aDÍAZ , R.
700 1 $aMENDOZA, Y.
700 1 $aNOTTE, G.
700 1 $aSANTOS,E.
700 1 $aGÉREZ, N.
700 1 $aVERÓNICA, M.
700 1 $aCANCELA, H.
773 $tEcological Indicators, November 2019, Volume 106, Article number 105448.
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INIA La Estanzuela (LE) |
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| Acceso al texto completo restringido a Biblioteca INIA Las Brujas. Por información adicional contacte bibliolb@inia.org.uy. |
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Registro completo
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Biblioteca (s) : |
INIA Las Brujas. |
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Fecha actual : |
24/06/2019 |
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Actualizado : |
16/03/2021 |
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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 : |
CASAL, A.; GARCÍA-ROCHE, M.; NAVAJAS, E.; CASSINA, A.; CARRIQUIRY, M |
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Afiliación : |
A. CASAL, Departamento de Produccion Animal y Pasturas, Facultad de Agronomia, Universidad de la Republica, Paysandú, Uruguay.; M. GARCÍA-ROCHE, Departamento de Produccion Animal y Pasturas, Facultad de Agronomia, Universidad de la Republica, Montevideo, Uruguay; Center for Free Radical and Biomedical Research (CEINBIO); ELLY ANA NAVAJAS VALENTINI, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; A. CASSINA, Center for Free Radical and Biomedical Research (CEINBIO) and Departamento de Bioquímica, Facultad de Medicina, Universidad de la Republica, Montevideo, Uruguay; M. CARRIQUIRY, Departamento de Produccion Animal y Pasturas, Facultad de Agronomia, Universidad de la Republica, Montevideo, Uruguay. |
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Título : |
Differential hepatic oxidative status in steers with divergent residual feed intake phenotype. |
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Fecha de publicación : |
2020 |
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Fuente / Imprenta : |
Animal, 1 January 2020, Volume 14, Issue 1, Pages 78-85. Doi: https://doi.org/10.1017/S1751731119001332 |
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DOI : |
10.1017/S1751731119001332 |
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Idioma : |
Inglés |
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Notas : |
Article history: Received 12 December 2018 // Accepted 6 May 2019 // Published online: 20 June 2019.
Supplementary materials.
Corresponding author: Casal, A.; Departamento de Produccion Animal y Pasturas, Facultad de Agronomia, Universidad de la Republica, Ruta 3 km 363, Paysandu, Uruguay; email:alcas@adinet.com.uy |
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Contenido : |
ABSTRACT.
Oxidative stress occurs when oxidant production exceeds the antioxidant capacity to detoxify the reactive intermediates or to repair the resulting damage. Feed efficiency has been associated with mitochondrial function due to its impact on cell energy metabolism. However, mitochondria are also recognized as a major source of oxidants. The aim of this study was to determine lipid and protein oxidative stress markers, and gene and protein expression as well as activity of antioxidant enzymes in the liver of steers of divergent residual feed intake (RFI) phenotypes. Hereford steers (n = 111) were evaluated in post-weaning 70 days standard test for RFI. Eighteen steers exhibiting the greatest (n = 9; high-RFI) and the lowest (n = 9; low-RFI) RFI values were selected for this study. After the test, steers were managed together under grazing conditions until slaughter when they reached the slaughter body weight. At slaughter, hepatic samples were obtained, were snap-frozen in liquid nitrogen and stored at −80°C until analyses. Hepatic thiobarbituric acid reactive species and protein carbonyls were greater (P = 0.05) and hepatic 4-hydroxynonenal protein adducts tended (P = 0.10) to be greater for high- than low-RFI steers. Hepatic gene expression glutathione peroxidase 4, glutamate?cysteine ligase catalytic subunit and peroxiredoxin 5 mRNA was greater (P ≤ 0.05) and glutathione peroxidase 3 mRNA tended (P = 0.10) to be greater in low- than high-RFI steers. Hepatic protein expression and enzyme activity of manganese superoxide dismutase and glutathione peroxidase enzyme activity tended (P ≤ 0.10) to be greater for low- than high-RFI steers. High-efficiency steers (low-RFI) probably had better hepatic oxidative status which was strongly associated with greater antioxidant ability near to the oxidant production site and, therefore, reduced oxidative stress of the liver. Decreased hepatic oxidative stress would reduce maintenance requirements due to a lower protein and lipid turnover and better efficiency in the use of energy.
© The Animal Consortium 2019 MenosABSTRACT.
Oxidative stress occurs when oxidant production exceeds the antioxidant capacity to detoxify the reactive intermediates or to repair the resulting damage. Feed efficiency has been associated with mitochondrial function due to its impact on cell energy metabolism. However, mitochondria are also recognized as a major source of oxidants. The aim of this study was to determine lipid and protein oxidative stress markers, and gene and protein expression as well as activity of antioxidant enzymes in the liver of steers of divergent residual feed intake (RFI) phenotypes. Hereford steers (n = 111) were evaluated in post-weaning 70 days standard test for RFI. Eighteen steers exhibiting the greatest (n = 9; high-RFI) and the lowest (n = 9; low-RFI) RFI values were selected for this study. After the test, steers were managed together under grazing conditions until slaughter when they reached the slaughter body weight. At slaughter, hepatic samples were obtained, were snap-frozen in liquid nitrogen and stored at −80°C until analyses. Hepatic thiobarbituric acid reactive species and protein carbonyls were greater (P = 0.05) and hepatic 4-hydroxynonenal protein adducts tended (P = 0.10) to be greater for high- than low-RFI steers. Hepatic gene expression glutathione peroxidase 4, glutamate?cysteine ligase catalytic subunit and peroxiredoxin 5 mRNA was greater (P ≤ 0.05) and glutathione peroxidase 3 mRNA tended (P = 0.10) to be greater in low- than high-RFI steers. Hep... Presentar Todo |
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Palabras claves : |
ANTIOXIDANTS; ENERGY METABOLISM; FEED EFFICIENCY; FEEDING; LIVER; OXIDATIVE STRESS. |
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Thesagro : |
ALIMENTACION ANIMAL. |
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Asunto categoría : |
L02 Alimentación animal |
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Marc : |
LEADER 03260naa a2200277 a 4500
001 1059875
005 2021-03-16
008 2020 bl uuuu u00u1 u #d
024 7 $a10.1017/S1751731119001332$2DOI
100 1 $aCASAL, A.
245 $aDifferential hepatic oxidative status in steers with divergent residual feed intake phenotype.$h[electronic resource]
260 $c2020
500 $aArticle history: Received 12 December 2018 // Accepted 6 May 2019 // Published online: 20 June 2019. Supplementary materials. Corresponding author: Casal, A.; Departamento de Produccion Animal y Pasturas, Facultad de Agronomia, Universidad de la Republica, Ruta 3 km 363, Paysandu, Uruguay; email:alcas@adinet.com.uy
520 $aABSTRACT. Oxidative stress occurs when oxidant production exceeds the antioxidant capacity to detoxify the reactive intermediates or to repair the resulting damage. Feed efficiency has been associated with mitochondrial function due to its impact on cell energy metabolism. However, mitochondria are also recognized as a major source of oxidants. The aim of this study was to determine lipid and protein oxidative stress markers, and gene and protein expression as well as activity of antioxidant enzymes in the liver of steers of divergent residual feed intake (RFI) phenotypes. Hereford steers (n = 111) were evaluated in post-weaning 70 days standard test for RFI. Eighteen steers exhibiting the greatest (n = 9; high-RFI) and the lowest (n = 9; low-RFI) RFI values were selected for this study. After the test, steers were managed together under grazing conditions until slaughter when they reached the slaughter body weight. At slaughter, hepatic samples were obtained, were snap-frozen in liquid nitrogen and stored at −80°C until analyses. Hepatic thiobarbituric acid reactive species and protein carbonyls were greater (P = 0.05) and hepatic 4-hydroxynonenal protein adducts tended (P = 0.10) to be greater for high- than low-RFI steers. Hepatic gene expression glutathione peroxidase 4, glutamate?cysteine ligase catalytic subunit and peroxiredoxin 5 mRNA was greater (P ≤ 0.05) and glutathione peroxidase 3 mRNA tended (P = 0.10) to be greater in low- than high-RFI steers. Hepatic protein expression and enzyme activity of manganese superoxide dismutase and glutathione peroxidase enzyme activity tended (P ≤ 0.10) to be greater for low- than high-RFI steers. High-efficiency steers (low-RFI) probably had better hepatic oxidative status which was strongly associated with greater antioxidant ability near to the oxidant production site and, therefore, reduced oxidative stress of the liver. Decreased hepatic oxidative stress would reduce maintenance requirements due to a lower protein and lipid turnover and better efficiency in the use of energy. © The Animal Consortium 2019
650 $aALIMENTACION ANIMAL
653 $aANTIOXIDANTS
653 $aENERGY METABOLISM
653 $aFEED EFFICIENCY
653 $aFEEDING
653 $aLIVER
653 $aOXIDATIVE STRESS
700 1 $aGARCÍA-ROCHE, M.
700 1 $aNAVAJAS, E.
700 1 $aCASSINA, A.
700 1 $aCARRIQUIRY, M
773 $tAnimal, 1 January 2020, Volume 14, Issue 1, Pages 78-85. Doi: https://doi.org/10.1017/S1751731119001332
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