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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 : |
21/02/2014 |
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Actualizado : |
30/10/2019 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Autor : |
HAREAU, G.; NORTON, G.W.; MILLS, B.F.; PETERSON, E. |
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Afiliación : |
GUY GASTON HAREAU ALGORTA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; GEORGE W. NORTON, Virginia Polytechnic Institute and State University, United States; BRADFORD F. MILLS, Virginia Polytechnic Institute and State University, United States; EVERETT PETERSON, Virginia Polytechnic Institute and State University, United States. |
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Título : |
Potential benefits of transgenic rice in Asia: A general equilibrium analysis. |
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Fecha de publicación : |
2005 |
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Fuente / Imprenta : |
Quarterly Journal of International Agriculture, 2005, Volume 44, Issue 3, Pages 229-246. |
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Descripción física : |
2-s2.0-25144436574 |
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ISSN : |
0049-8599 |
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Idioma : |
Inglés |
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Notas : |
Selected Paper # 118832 prepared for presentation at the Annual meeting of the American Agricultural Economics Association, Denver, Colorado, August 1-4, 2004.
This paper was partially supported by USDA-CSREES Grant No. 2001-52100-11250, but does not necessarily reflect the views of that agency. |
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Contenido : |
ABSTRACT.
A preliminary ex ante evaluation of potential impacts of stemborer, drought, and herbicide resistant genetically modified rice technologies in favorable and unfavorable environments in Asia is conducted in a general equilibrium framework. The total magnitude of the benefits from the three technologies is similar, and it indicates that emerging rice biotechnologies are likely to generate significant gains in economic well-being. The distribution of technology benefits across countries is, however, dramatically different. For countries with a larger proportion of production in unfavorable environments, the drought resistance technology produces larger gains than the stemborer technology. For countries with production primarily in favorable environments, the relative magnitude of gains depends on the proportion of direct seeded as opposed to transplanted rice production, with herbicide resistance technology appearing to provide greater gains than stemborer or drought resistant rice in direct seeded systems. |
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Palabras claves : |
Biotechnology; GTAP; Research impacts; Transgenic rice. |
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Thesagro : |
Asia. |
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Asunto categoría : |
F01 Cultivo |
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Marc : |
LEADER 02036naa a2200253 a 4500
001 1012503
005 2019-10-30
008 2005 bl uuuu u00u1 u #d
022 $a0049-8599
100 1 $aHAREAU, G.
245 $aPotential benefits of transgenic rice in Asia$bA general equilibrium analysis.$h[electronic resource]
260 $c2005
300 $c2-s2.0-25144436574
500 $aSelected Paper # 118832 prepared for presentation at the Annual meeting of the American Agricultural Economics Association, Denver, Colorado, August 1-4, 2004. This paper was partially supported by USDA-CSREES Grant No. 2001-52100-11250, but does not necessarily reflect the views of that agency.
520 $aABSTRACT. A preliminary ex ante evaluation of potential impacts of stemborer, drought, and herbicide resistant genetically modified rice technologies in favorable and unfavorable environments in Asia is conducted in a general equilibrium framework. The total magnitude of the benefits from the three technologies is similar, and it indicates that emerging rice biotechnologies are likely to generate significant gains in economic well-being. The distribution of technology benefits across countries is, however, dramatically different. For countries with a larger proportion of production in unfavorable environments, the drought resistance technology produces larger gains than the stemborer technology. For countries with production primarily in favorable environments, the relative magnitude of gains depends on the proportion of direct seeded as opposed to transplanted rice production, with herbicide resistance technology appearing to provide greater gains than stemborer or drought resistant rice in direct seeded systems.
650 $aAsia
653 $aBiotechnology
653 $aGTAP
653 $aResearch impacts
653 $aTransgenic rice
700 1 $aNORTON, G.W.
700 1 $aMILLS, B.F.
700 1 $aPETERSON, E.
773 $tQuarterly Journal of International Agriculture, 2005, Volume 44, Issue 3, Pages 229-246.
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Registro original : |
INIA Las Brujas (LB) |
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| Acceso al texto completo restringido a Biblioteca INIA Tacuarembó. Por información adicional contacte bibliotb@tb.inia.org.uy. |
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Registro completo
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Biblioteca (s) : |
INIA Tacuarembó. |
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Fecha actual : |
15/09/2014 |
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Actualizado : |
09/10/2018 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Circulación / Nivel : |
Internacional - 1 |
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Autor : |
VIÑOLES, C.; PAGANONI, B.L.; MCNATTY, K.P.; HEATH, D.A.; THOMPSON, A.N.; GLOVER, K.M.M.; MILTON, J.T.B.; MARTIN, G.B. |
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Afiliación : |
CAROLINA VIÑOLES GIL, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
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Título : |
Follicle development, endocrine profiles and ovulation rate in adult Merino ewes-effects of early nutrition (pre-and post-natal) and supplementation with lupin grain. |
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Fecha de publicación : |
2014 |
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Fuente / Imprenta : |
Reproduction, 2014, v. 147, no. 1, p. 101-110. |
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DOI : |
10.1530/REP-13-0104 |
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Idioma : |
Inglés |
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Notas : |
History article: Received 14 March 2013; First decision 8 April 2013; Revised manuscript received 17 October 2013; Accepted 23 October 2013. |
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Contenido : |
In adult ewes, we tested whether ovarian function, including the response to short-term supplementation, was affected by the nutrition of their mothers during the pre-/postnatal period. A 2x2 factorial was used with nutrition in early life (low or high) and a 6- day supplement (with or without) as factors. All ewes received 3 prostaglandin injections 7 days apart, and the supplement (lupin grain) was fed for 6 days from 2 days after the second until the third prostaglandin injection. We measured reproductive and metabolic hormones, studied follicle dynamics (ultrasonography), and evaluated granulosa cell numbers, aromatase activity and oestradiol concentrations in follicular fluid in healthy follicles at Days 3 and 7 of supplementation. Ovulation rate was increased by 25% by exposure to high pre-/post-natal nutrition (1.5 versus 1.2; P < 0.05), in association with a small decrease in FSH concentrations (P = 0.06) and a small increase in insulin concentrations (P = 0.07). The number of healthy astral follicles was not affected. Acute supplementation increased the number of granulose cells (3.7 ??0.2 vs 3.0 ??0.2 million; P < 0.05) in the largest follicle, and the circulating concentrations of oestradiol (4.6 ??0.3 vs 3.9 ??0.3 pmol/L; P < 0.05) and glucose (3.4 ??0.03 vs 3.3 ??0.03 mmol/L; P < 0.01). Both early life nutrition and acute supplementation appear to affect ovulation rate through changes in glucose-insulin homeostasis that alter follicular responsiveness to FSH and therefore oestradiol-FSH balance. MenosIn adult ewes, we tested whether ovarian function, including the response to short-term supplementation, was affected by the nutrition of their mothers during the pre-/postnatal period. A 2x2 factorial was used with nutrition in early life (low or high) and a 6- day supplement (with or without) as factors. All ewes received 3 prostaglandin injections 7 days apart, and the supplement (lupin grain) was fed for 6 days from 2 days after the second until the third prostaglandin injection. We measured reproductive and metabolic hormones, studied follicle dynamics (ultrasonography), and evaluated granulosa cell numbers, aromatase activity and oestradiol concentrations in follicular fluid in healthy follicles at Days 3 and 7 of supplementation. Ovulation rate was increased by 25% by exposure to high pre-/post-natal nutrition (1.5 versus 1.2; P < 0.05), in association with a small decrease in FSH concentrations (P = 0.06) and a small increase in insulin concentrations (P = 0.07). The number of healthy astral follicles was not affected. Acute supplementation increased the number of granulose cells (3.7 ??0.2 vs 3.0 ??0.2 million; P < 0.05) in the largest follicle, and the circulating concentrations of oestradiol (4.6 ??0.3 vs 3.9 ??0.3 pmol/L; P < 0.05) and glucose (3.4 ??0.03 vs 3.3 ??0.03 mmol/L; P < 0.01). Both early life nutrition and acute supplementation appear to affect ovulation rate through changes in glucose-insulin homeostasis that alter follicular responsiveness to FSH a... Presentar Todo |
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Thesagro : |
OVINOS. |
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Asunto categoría : |
A50 Investigación agraria |
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Marc : |
LEADER 02402naa a2200241 a 4500
001 1050229
005 2018-10-09
008 2014 bl uuuu u00u1 u #d
024 7 $a10.1530/REP-13-0104$2DOI
100 1 $aVIÑOLES, C.
245 $aFollicle development, endocrine profiles and ovulation rate in adult Merino ewes-effects of early nutrition (pre-and post-natal) and supplementation with lupin grain.
260 $c2014
500 $aHistory article: Received 14 March 2013; First decision 8 April 2013; Revised manuscript received 17 October 2013; Accepted 23 October 2013.
520 $aIn adult ewes, we tested whether ovarian function, including the response to short-term supplementation, was affected by the nutrition of their mothers during the pre-/postnatal period. A 2x2 factorial was used with nutrition in early life (low or high) and a 6- day supplement (with or without) as factors. All ewes received 3 prostaglandin injections 7 days apart, and the supplement (lupin grain) was fed for 6 days from 2 days after the second until the third prostaglandin injection. We measured reproductive and metabolic hormones, studied follicle dynamics (ultrasonography), and evaluated granulosa cell numbers, aromatase activity and oestradiol concentrations in follicular fluid in healthy follicles at Days 3 and 7 of supplementation. Ovulation rate was increased by 25% by exposure to high pre-/post-natal nutrition (1.5 versus 1.2; P < 0.05), in association with a small decrease in FSH concentrations (P = 0.06) and a small increase in insulin concentrations (P = 0.07). The number of healthy astral follicles was not affected. Acute supplementation increased the number of granulose cells (3.7 ??0.2 vs 3.0 ??0.2 million; P < 0.05) in the largest follicle, and the circulating concentrations of oestradiol (4.6 ??0.3 vs 3.9 ??0.3 pmol/L; P < 0.05) and glucose (3.4 ??0.03 vs 3.3 ??0.03 mmol/L; P < 0.01). Both early life nutrition and acute supplementation appear to affect ovulation rate through changes in glucose-insulin homeostasis that alter follicular responsiveness to FSH and therefore oestradiol-FSH balance.
650 $aOVINOS
700 1 $aPAGANONI, B.L.
700 1 $aMCNATTY, K.P.
700 1 $aHEATH, D.A.
700 1 $aTHOMPSON, A.N.
700 1 $aGLOVER, K.M.M.
700 1 $aMILTON, J.T.B.
700 1 $aMARTIN, G.B.
773 $tReproduction, 2014$gv. 147, no. 1, p. 101-110.
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