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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 : |
16/10/2014 |
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Actualizado : |
20/09/2019 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Autor : |
CUBBAGE, F.; BALMELLI, G.; BUSSONI, A.; NOELLEMEYER, E.; PACHAS, A.N.; FASSOLA, H.; COLCOMBET, L.; ROSSNER, B.; FREY, G.; DUBE, F.; LOPES DE SILVA, M.; STEVENSON, H.; HAMILTON, J.; HUBBARD, W. |
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Afiliación : |
FREDERICK CUBBAGE; GUSTAVO DANIEL BALMELLI HERNANDEZ, Instituto Nacional de Investigación Agropecuaria (INIA), Uruguay; ADRIANA BUSSONI; ELKE NOELLEMEYER; ANIBAL N. PACHAS; HUGO FASSOLA; LUIS COLCOMBET; BELÉN ROSSNER; GREGORY FREY; FRANCIS DUBE; MARCIO LOPES DE SILVA; HAYLEY STEVENSON; JAMES HAMILTON; WILLIAM HUBBARD. |
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Título : |
Comparing silvopastoral systems and prospects in eight regions of the world. |
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Fecha de publicación : |
2012 |
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Fuente / Imprenta : |
Agroforest Systems, 2012, v. 86, p. 303-314 |
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DOI : |
10.1007/s10457-012-9482-z |
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Idioma : |
Inglés |
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Notas : |
History article: Received: 20 October 2011; Accepted: 6 January 2012; Published online: 5 February 2012. |
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Contenido : |
Silvopasture systems combine trees, forage, and livestock in a variety of different species and management regimes, depending on the biophysical, economic, cultural, and market factors in a region. We describe and compare actual farm practices and current research trials of silvopastoral systems in eight regions within seven countries of the world: Misiones and Corrientes provinces, Argentina; La Pampa province, Argentina; northwestern Minas Gerais, Brazil; the Ayse´n region of Patagonia, Chile; the North Island of New Zealand; the Southeast United States; Paraguay; and Uruguay. Some countries use native trees and existing forests; some use plantations, particularly of exotic species. Natural forest silvopasture systems generally add livestock in extensive systems, to capture the benefits of shade, forage, and income
diversification without much added inputs. Plantation forest systems are more purposive and intensive, with more focus on joint production and profits, for small
owners, large ranches, and timber companies. Trends suggest that more active management of both natural and planted silvopastoral systems will be required to
enhance joint production of timber and livestock, achieve income diversification and reduce financial risk, makemore profit, improve environmental benefits,
and realize more resilience to adapt to climate change. |
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Palabras claves : |
ADOPTION; NEW ZEALAND; SILVOPASTORAL SYSTEMS; SILVOPASTURE; SOUTH AMERICA; USA. |
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Thesagro : |
SILVOPASTOREO. |
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Asunto categoría : |
A50 Investigación agraria |
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Marc : |
LEADER 02447naa a2200385 a 4500
001 1051153
005 2019-09-20
008 2012 bl uuuu u00u1 u #d
024 7 $a10.1007/s10457-012-9482-z$2DOI
100 1 $aCUBBAGE, F.
245 $aComparing silvopastoral systems and prospects in eight regions of the world.
260 $c2012
500 $aHistory article: Received: 20 October 2011; Accepted: 6 January 2012; Published online: 5 February 2012.
520 $aSilvopasture systems combine trees, forage, and livestock in a variety of different species and management regimes, depending on the biophysical, economic, cultural, and market factors in a region. We describe and compare actual farm practices and current research trials of silvopastoral systems in eight regions within seven countries of the world: Misiones and Corrientes provinces, Argentina; La Pampa province, Argentina; northwestern Minas Gerais, Brazil; the Ayse´n region of Patagonia, Chile; the North Island of New Zealand; the Southeast United States; Paraguay; and Uruguay. Some countries use native trees and existing forests; some use plantations, particularly of exotic species. Natural forest silvopasture systems generally add livestock in extensive systems, to capture the benefits of shade, forage, and income diversification without much added inputs. Plantation forest systems are more purposive and intensive, with more focus on joint production and profits, for small owners, large ranches, and timber companies. Trends suggest that more active management of both natural and planted silvopastoral systems will be required to enhance joint production of timber and livestock, achieve income diversification and reduce financial risk, makemore profit, improve environmental benefits, and realize more resilience to adapt to climate change.
650 $aSILVOPASTOREO
653 $aADOPTION
653 $aNEW ZEALAND
653 $aSILVOPASTORAL SYSTEMS
653 $aSILVOPASTURE
653 $aSOUTH AMERICA
653 $aUSA
700 1 $aBALMELLI, G.
700 1 $aBUSSONI, A.
700 1 $aNOELLEMEYER, E.
700 1 $aPACHAS, A.N.
700 1 $aFASSOLA, H.
700 1 $aCOLCOMBET, L.
700 1 $aROSSNER, B.
700 1 $aFREY, G.
700 1 $aDUBE, F.
700 1 $aLOPES DE SILVA, M.
700 1 $aSTEVENSON, H.
700 1 $aHAMILTON, J.
700 1 $aHUBBARD, W.
773 $tAgroforest Systems, 2012$gv. 86, p. 303-314
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INIA Tacuarembó (TBO) |
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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 : |
26/09/2014 |
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Actualizado : |
15/10/2019 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Circulación / Nivel : |
B - 1 |
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Autor : |
GOLDBERG, V.; CIAPPESONI, C.; AGUILAR, I. |
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Afiliación : |
VIRGINIA GOLDBERG BIANCHI, Instituto Nacional de Investigación Agropecuaria (INIA), Uruguay; CARLOS GABRIEL CIAPPESONI SCARONE, Instituto Nacional de Investigación Agropecuaria (INIA), Uruguay; IGNACIO AGUILAR GARCIA, Instituto Nacional de Investigación Agropecuaria (INIA), Uruguay. |
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Título : |
Genetic parameters for nematode resistance in periparturient ewes and post-weaning lambs in Uruguayan Merino sheep. |
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Fecha de publicación : |
2012 |
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Fuente / Imprenta : |
Livestock Science, 2012, v.147, no.1-3, p.181-187. |
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DOI : |
10.1016/j.livsci.2012.05.003 |
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Idioma : |
Inglés |
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Notas : |
Article history: Received 14 December 2011 / Received in revised form 2 May 2012 / Accepted 3 May 2012. |
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Contenido : |
ABSTRACT.
Gastrointestinal (GI) parasites are one of the main sanitary and economic constraints for sheep production worldwide. In Uruguay, resistance to GI parasites has been included in genetic evaluations of Merino and Corriedale breeds since 1994, using Faecal worm Egg Count measured in post-weaning lambs (lambFEC) as a selection criterion. Although adult categories are more resistant to GI parasites, a temporary loss of acquired immunity is present in the periparturient period (=periparturient rise). The purpose of the present study is to estimate the genetic parameters of resistance to GI parasites in periparturient ewes and post-weaning Merino lambs. A total 2110 faecal samples of 748 periparturient ewes (eweFEC), the progeny of 107 sires, were collected in 2009 and 2010. 9458 lambFEC records from 7506 lambs born between 2001 and 2009 were analysed as well. (Co)variance components and systematic effects were estimated using a multi-trait animal model, with a Bayesian analysis using the Gibbs sampler algorithm. Direct and correlated responses (DR and CR) of eweFEC to selection using eweFEC and lambFEC respectively, were also estimated. Posterior medians (posterior standard deviation) for heritability (h2) and repeatability were 0.25 (0.03) and 0.34 (0.02) for lambFEC, and 0.08 (0.03) and 0.18 (0.03) for eweFEC, respectively. Posterior median for genetic correlation between both traits was 0.81 (0.11). CR obtained by selecting for lambFEC was two times more efficient than DR from selection by eweFEC. In conclusion, eweFEC has a lower h2 than lambFEC while their genetic correlation is moderate to high. Therefore, indirect selection by using lambFEC will be more effective than direct selection on eweFEC, and will produce ewes that eliminate less worm eggs, resulting in less pasture contamination.
© 2012 Elsevier B.V.. MenosABSTRACT.
Gastrointestinal (GI) parasites are one of the main sanitary and economic constraints for sheep production worldwide. In Uruguay, resistance to GI parasites has been included in genetic evaluations of Merino and Corriedale breeds since 1994, using Faecal worm Egg Count measured in post-weaning lambs (lambFEC) as a selection criterion. Although adult categories are more resistant to GI parasites, a temporary loss of acquired immunity is present in the periparturient period (=periparturient rise). The purpose of the present study is to estimate the genetic parameters of resistance to GI parasites in periparturient ewes and post-weaning Merino lambs. A total 2110 faecal samples of 748 periparturient ewes (eweFEC), the progeny of 107 sires, were collected in 2009 and 2010. 9458 lambFEC records from 7506 lambs born between 2001 and 2009 were analysed as well. (Co)variance components and systematic effects were estimated using a multi-trait animal model, with a Bayesian analysis using the Gibbs sampler algorithm. Direct and correlated responses (DR and CR) of eweFEC to selection using eweFEC and lambFEC respectively, were also estimated. Posterior medians (posterior standard deviation) for heritability (h2) and repeatability were 0.25 (0.03) and 0.34 (0.02) for lambFEC, and 0.08 (0.03) and 0.18 (0.03) for eweFEC, respectively. Posterior median for genetic correlation between both traits was 0.81 (0.11). CR obtained by selecting for lambFEC was two times more efficient t... Presentar Todo |
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Palabras claves : |
FEC. |
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Thesagro : |
MEJORAMIENTO GENETICO ANIMAL. |
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Asunto categoría : |
L10 Genética y mejoramiento animal |
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Marc : |
LEADER 02560naa a2200193 a 4500
001 1050605
005 2019-10-15
008 2012 bl uuuu u00u1 u #d
024 7 $a10.1016/j.livsci.2012.05.003$2DOI
100 1 $aGOLDBERG, V.
245 $aGenetic parameters for nematode resistance in periparturient ewes and post-weaning lambs in Uruguayan Merino sheep.$h[electronic resource]
260 $c2012
500 $aArticle history: Received 14 December 2011 / Received in revised form 2 May 2012 / Accepted 3 May 2012.
520 $aABSTRACT. Gastrointestinal (GI) parasites are one of the main sanitary and economic constraints for sheep production worldwide. In Uruguay, resistance to GI parasites has been included in genetic evaluations of Merino and Corriedale breeds since 1994, using Faecal worm Egg Count measured in post-weaning lambs (lambFEC) as a selection criterion. Although adult categories are more resistant to GI parasites, a temporary loss of acquired immunity is present in the periparturient period (=periparturient rise). The purpose of the present study is to estimate the genetic parameters of resistance to GI parasites in periparturient ewes and post-weaning Merino lambs. A total 2110 faecal samples of 748 periparturient ewes (eweFEC), the progeny of 107 sires, were collected in 2009 and 2010. 9458 lambFEC records from 7506 lambs born between 2001 and 2009 were analysed as well. (Co)variance components and systematic effects were estimated using a multi-trait animal model, with a Bayesian analysis using the Gibbs sampler algorithm. Direct and correlated responses (DR and CR) of eweFEC to selection using eweFEC and lambFEC respectively, were also estimated. Posterior medians (posterior standard deviation) for heritability (h2) and repeatability were 0.25 (0.03) and 0.34 (0.02) for lambFEC, and 0.08 (0.03) and 0.18 (0.03) for eweFEC, respectively. Posterior median for genetic correlation between both traits was 0.81 (0.11). CR obtained by selecting for lambFEC was two times more efficient than DR from selection by eweFEC. In conclusion, eweFEC has a lower h2 than lambFEC while their genetic correlation is moderate to high. Therefore, indirect selection by using lambFEC will be more effective than direct selection on eweFEC, and will produce ewes that eliminate less worm eggs, resulting in less pasture contamination. © 2012 Elsevier B.V..
650 $aMEJORAMIENTO GENETICO ANIMAL
653 $aFEC
700 1 $aCIAPPESONI, C.
700 1 $aAGUILAR, I.
773 $tLivestock Science, 2012$gv.147, no.1-3, p.181-187.
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