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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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Biblioteca (s) : |
INIA La Estanzuela. |
Fecha : |
01/11/2021 |
Actualizado : |
03/11/2021 |
Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
Autor : |
STIRLING, S.; DELABY, L.; MENDOZA, A.; FARIÑA, S. |
Afiliación : |
MARÍA SOFÍA STIRLING SANTOS, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay.; L. DELABY, INRAE, AgroCampus Ouest, Physiologie, Environnement et Génétique pour l'Animal et les Systèmes d'Elevage, 35590 Saint Gilles, France.; ALEJANDRO FRANCISCO MENDOZA AGUIAR, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; SANTIAGO FARIÑA, INIA (Instituto Nacional de Investigación Agropecuaria). |
Título : |
Intensification strategies for temperate hot-summer grazing dairy systems in South America: Effects of feeding strategy and cow genotype. |
Fecha de publicación : |
2021 |
Fuente / Imprenta : |
Journal of Dairy Science, September 2021. IN PRESS. doi: https://doi.org/10.3168/jds.2021-20507 |
DOI : |
10.3168/jds.2021-20507 |
Idioma : |
Inglés |
Notas : |
Article history: Received 23 March 2021/ Accepted 31 July 2021/ Available online 16 September 2021. |
Contenido : |
ABSTRACT: Pasture-based dairy systems present the opportunity to increase productivity per hectare through increasing stocking rate and forage utilization. However, in the temperate hot-summer region of South America, different productive strategies are being adopted by farmers. The aim of this study was to quantify the effect of feeding strategy (FS) and cow genotype (G) on individual animal and whole-farm biophysical performance. A design with 2 × 2 levels of intensification aiming to increase home-grown forage utilization and milk output per hectare was evaluated. The experiment was a randomized complete block design with a 2 × 2 factorial arrangement of treatments, combining 2 feeding strategies with varying proportions of grazing in the annual feeding budget [grass fixed (GFix) and grass maximum (GMax)] and 2 Holstein Friesian cow genotypes [New Zealand (NZHF) or North American Holstein Friesian (NAHF)]. The effects of FS, G, and their interaction were analyzed using mixed models. New Zealand Holstein Friesian cows presented lower individual milk yield and higher milk component concentrations, maintained higher average body condition score, and increased body weight (BW) throughout the experiment, while presenting a better reproductive performance compared with the NAHF cows. Although all farmlets were planned at the same stocking rate on a per kilogram of BW basis, the current stocking rate changed as a result of animal performance and grass utilization resulting in NZHF cows achieving greater BW per hectare. The superior stocking rate led to greater milk solids production and feed consumption per hectare for the systems with NZHF cows. The GFix feeding strategy resulted in greater total home-grown forage harvest and conserved forage surplus than GMax. Overall, it was feasible to increase stocking rate and increase milk production per hectare from home-grown forage with differing feeding strategies and Holstein Friesian cow genotypes within grazing systems located in the temperate hot-summer climate region of South America. The interactions reported between FS × G highlight the superior productivity per hectare of NZHF cows within the GMax feeding strategy based on maximizing grazed pasture, which could represent a competitive intensification strategy in terms of cost of production for this region. MenosABSTRACT: Pasture-based dairy systems present the opportunity to increase productivity per hectare through increasing stocking rate and forage utilization. However, in the temperate hot-summer region of South America, different productive strategies are being adopted by farmers. The aim of this study was to quantify the effect of feeding strategy (FS) and cow genotype (G) on individual animal and whole-farm biophysical performance. A design with 2 × 2 levels of intensification aiming to increase home-grown forage utilization and milk output per hectare was evaluated. The experiment was a randomized complete block design with a 2 × 2 factorial arrangement of treatments, combining 2 feeding strategies with varying proportions of grazing in the annual feeding budget [grass fixed (GFix) and grass maximum (GMax)] and 2 Holstein Friesian cow genotypes [New Zealand (NZHF) or North American Holstein Friesian (NAHF)]. The effects of FS, G, and their interaction were analyzed using mixed models. New Zealand Holstein Friesian cows presented lower individual milk yield and higher milk component concentrations, maintained higher average body condition score, and increased body weight (BW) throughout the experiment, while presenting a better reproductive performance compared with the NAHF cows. Although all farmlets were planned at the same stocking rate on a per kilogram of BW basis, the current stocking rate changed as a result of animal performance and grass utilization resulting in NZ... Presentar Todo |
Palabras claves : |
Feeding system home; Genotype; Grown forage; Strain. |
Asunto categoría : |
-- |
Marc : |
LEADER 03182naa a2200229 a 4500 001 1062512 005 2021-11-03 008 2021 bl uuuu u00u1 u #d 024 7 $a10.3168/jds.2021-20507$2DOI 100 1 $aSTIRLING, S. 245 $aIntensification strategies for temperate hot-summer grazing dairy systems in South America$bEffects of feeding strategy and cow genotype.$h[electronic resource] 260 $c2021 500 $aArticle history: Received 23 March 2021/ Accepted 31 July 2021/ Available online 16 September 2021. 520 $aABSTRACT: Pasture-based dairy systems present the opportunity to increase productivity per hectare through increasing stocking rate and forage utilization. However, in the temperate hot-summer region of South America, different productive strategies are being adopted by farmers. The aim of this study was to quantify the effect of feeding strategy (FS) and cow genotype (G) on individual animal and whole-farm biophysical performance. A design with 2 × 2 levels of intensification aiming to increase home-grown forage utilization and milk output per hectare was evaluated. The experiment was a randomized complete block design with a 2 × 2 factorial arrangement of treatments, combining 2 feeding strategies with varying proportions of grazing in the annual feeding budget [grass fixed (GFix) and grass maximum (GMax)] and 2 Holstein Friesian cow genotypes [New Zealand (NZHF) or North American Holstein Friesian (NAHF)]. The effects of FS, G, and their interaction were analyzed using mixed models. New Zealand Holstein Friesian cows presented lower individual milk yield and higher milk component concentrations, maintained higher average body condition score, and increased body weight (BW) throughout the experiment, while presenting a better reproductive performance compared with the NAHF cows. Although all farmlets were planned at the same stocking rate on a per kilogram of BW basis, the current stocking rate changed as a result of animal performance and grass utilization resulting in NZHF cows achieving greater BW per hectare. The superior stocking rate led to greater milk solids production and feed consumption per hectare for the systems with NZHF cows. The GFix feeding strategy resulted in greater total home-grown forage harvest and conserved forage surplus than GMax. Overall, it was feasible to increase stocking rate and increase milk production per hectare from home-grown forage with differing feeding strategies and Holstein Friesian cow genotypes within grazing systems located in the temperate hot-summer climate region of South America. The interactions reported between FS × G highlight the superior productivity per hectare of NZHF cows within the GMax feeding strategy based on maximizing grazed pasture, which could represent a competitive intensification strategy in terms of cost of production for this region. 653 $aFeeding system home 653 $aGenotype 653 $aGrown forage 653 $aStrain 700 1 $aDELABY, L. 700 1 $aMENDOZA, A. 700 1 $aFARIÑA, S. 773 $tJournal of Dairy Science, September 2021. IN PRESS. doi: https://doi.org/10.3168/jds.2021-20507
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| Acceso al texto completo restringido a Biblioteca INIA Tacuarembó. Por información adicional contacte bibliotb@tb.inia.org.uy. |
Registro completo
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Biblioteca (s) : |
INIA Tacuarembó; INIA Treinta y Tres. |
Fecha actual : |
18/11/2016 |
Actualizado : |
11/10/2019 |
Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
Circulación / Nivel : |
Internacional - -- |
Autor : |
MARTÍNEZ, C.P.; TORRES, E.A.; CHATEL, M.; MOSQUERA, G.; DUITAMA, J.; ISHITANI, M.; SELVARAJ, M.; DEDICOVA, B.; TOHME, J.; GRENIER, C.; LORIEUX, M.; CRUZ, M.; BERRÍO, L.; CORREDOR, E.; ZORRILLA DE SAN MARTÍN, G.; BRESEGHELLO, F.; PEIXOTO, O.; COLOMBARI FILHO, J.M.; CASTRO, A. PEREIRA DE; LOPES, S.I. GINDRI; BARBOSA, M.; FUNCK, G.R. DALTROZZO; BLANCO, P.H.; PÉREZ DE VIDA, F.; MOLINA, F.; ROSAS, J.E.; MARTÍNEZ, S.; BONNECARRERE, V.; CARRACELAS, G.; MARIN, A.; CORREA-VICTORIA, F.; CAMARGO, I.; BRUZZONE, C.B . |
Afiliación : |
CESAR P. MARTÍNEZ, INTERNATIONAL CENTER FOR TROPICAL AGRICULTURE (CIAT).; EDGAR A. TORRES, INTERNATIONAL CENTER FOR TROPICAL AGRICULTURE (CIAT).; MARC CHATEL, INTERNATIONAL CENTER FOR TROPICAL AGRICULTURE (CIAT).; GLORIA MOSQUERA, INTERNACIONAL CENTER FOR TROPICAL AGRICULTURE (CIAT).; JORGE DUITAMA, INTERNATIONAL CENTER FOR TROPICAL AGRICULTURE (CIAT).; MANABU ISHITANI, INTERNATIONAL CENTER FOR TROPICAL AGRICULTURE (CIAT).; MICHAEL SILVARAJ, INTERNATIONAL CENTER FOR TROPICAL AGRICULTURE (CIAT).; BEATA DEDICOVA, INTERNATIONAL CENTER FOR TROPICAL AGRICULTURE (CIAT).; JOE TOHME, INTERNATIONAL CENTER FOR TROPICAL AGRICULTURE (CIAT).; CÉCILE GRENIER, INTERNATIONAL CENTER FOR TROPICAL AGRICULTURE (CIAT).; MATHIAS LORIEUX, INTERNATIONAL CENTER FOR TROPICAL AGRICULTURE (CIAT).; MARIBEL CRUZ, LATIN AMERICAN FUND FOR IRRIGATED RICE (FLAR).; LUIS BERRÍO, LATIN AMERICAN FUND FOR IRRIGATED RICE (FLAR).; EDGAR CORREDOR, LATIN AMERICAN FUND FOR IRRIGATED RICE (FLAR).; GONZALO ZORRILLA DE SAN MARTÍN, LATIN AMERICAN FUND FOR IRRIGATED RICE (FLAR).; FLAVIO BRESEGHELLO, BRAZILIAN ENTERPRISE FOR AGRICULTURAL RESEARCH (EMBRAPA RICE AND BEANS).; ORLANDO PEIXOTO, BRAZILIAN ENTERPRISE FOR AGRICULTURAL RESEARCH (EMBRAPA RICE AND BEANS).; JOSE MANOEL COLOMBARI FILHO, BRAZILIAN ENTERPRISE FOR AGRICULTURAL RESEARCH (EMBRAPA RICE AND BEANS).; ADRIANO PEREIRA DE CASTRO., BRAZILIAN ENTERPRISE FOR AGRICULTURAL RESEARCH (EMBRAPA RICE AND BEANS).; SERGIO IRACU GINDRI LOPES, RIO GRANDE DO SUL STATE RICE INSTITUTE (IRGA).; MARA BARBOSA, RIO GRANDE DO SUL STATE RICE INSTITUTE (IRGA).; GUSTAVO RODRIGO DALTROZZO FUNCK, RIO GRANDE DO SUL STATE RICE INSTITUTE (IRGA).; PEDRO HORACIO BLANCO BARRAL, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; FERNANDO BLAS PEREZ DE VIDA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; FEDERICO MOLINA CASELLA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; JUAN EDUARDO ROSAS CAISSIOLS, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; SEBASTIÁN MARTÍNEZ KOPP, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; MARIA VICTORIA BONNECARRERE MARTINEZ, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; JULIO GONZALO CARRACELAS GARRIDO, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; ALFREDO MARIN, ARGENTINIAN INSTITUTE FOR AGRICULTURAL RESEARCH (INTA).; FERNANDO CORREA-VICTORIA, RICE TEC SOLUTION; ISMAEL CAMARGO, PANAMANIAN INSTITUTE FOR AGRICULTURAL RESEARCH (IDIAP).; CARLOS BERNARDO BRUZZONE, SEEDS EL POTRERO FARM. |
Título : |
Rice breeding in Latin America. |
Fecha de publicación : |
2014 |
Fuente / Imprenta : |
Plant Breeding Reviews, 2014 v.38, p. 187-277., 2014 |
DOI : |
10.1002/9781118916865.ch05 |
Idioma : |
Inglés |
Contenido : |
Rice breeding has made important contributions to Latin America. More than 400 cultivars were released from 1975 to 2012, which helped to raise total production to >27 million tonnes obtained from 5.7 million hectares (average for 2010-2012). Rice production provides ~US$8.8 billion for thousands of farmers in Latin America and the Caribbean (LAC). The result of higher yields in the irrigated sector was to triple rice production in LAC while area did not grow, thus preserving more fragile environments. Several estimates on genetic gains for grain yield have been carried out in LAC. In temperate irrigated rice, the estimates are around 1.5-2.6% per year. In the tropical irrigated, it is ~1% and in the upland rice the estimate is ~1.4% per year.
Different breeding strategies, including pedigree, modified bulk, recurrent selection methods, anther culture, interspecific crosses, composite populations, quantitative trait loci (QTL) introgression, and recombinant inbred lines, accompanied by shuttle breeding schemes, direct seeding, and evaluation/selection in hot spots for main diseases are being used by CIAT and NARES in the region. In this process, methods for screening for diseases and other stresses were established. Networking has been a cornerstone for success and several networks such as INGER, FLAR, and HIAAL were created.
Looking forward, as farmers' yields are approaching the genetic yield potential exhibited by current cultivars, as a result of improved agronomic management, a new breakthrough is needed in terms of more productive cultivars. To achieve this goal, a strategy is needed that includes strong pipelines focused on specific environments and markets; better product profiling; integration between discovery, development, and delivery; and new breeding strategies using cutting-edge technologies and new breeding methods to accelerate genetic gains. MenosRice breeding has made important contributions to Latin America. More than 400 cultivars were released from 1975 to 2012, which helped to raise total production to >27 million tonnes obtained from 5.7 million hectares (average for 2010-2012). Rice production provides ~US$8.8 billion for thousands of farmers in Latin America and the Caribbean (LAC). The result of higher yields in the irrigated sector was to triple rice production in LAC while area did not grow, thus preserving more fragile environments. Several estimates on genetic gains for grain yield have been carried out in LAC. In temperate irrigated rice, the estimates are around 1.5-2.6% per year. In the tropical irrigated, it is ~1% and in the upland rice the estimate is ~1.4% per year.
Different breeding strategies, including pedigree, modified bulk, recurrent selection methods, anther culture, interspecific crosses, composite populations, quantitative trait loci (QTL) introgression, and recombinant inbred lines, accompanied by shuttle breeding schemes, direct seeding, and evaluation/selection in hot spots for main diseases are being used by CIAT and NARES in the region. In this process, methods for screening for diseases and other stresses were established. Networking has been a cornerstone for success and several networks such as INGER, FLAR, and HIAAL were created.
Looking forward, as farmers' yields are approaching the genetic yield potential exhibited by current cultivars, as a result of improved agronomic man... Presentar Todo |
Palabras claves : |
RICE. |
Thesagro : |
ARROZ; FITOMEJORAMIENTO; LATINOAMERICA. |
Asunto categoría : |
F30 Genética vegetal y fitomejoramiento |
Marc : |
LEADER 03360naa a2200565 a 4500 001 1056100 005 2019-10-11 008 2014 bl uuuu u00u1 u #d 024 7 $a10.1002/9781118916865.ch05$2DOI 100 1 $aMARTÍNEZ, C.P. 245 $aRice breeding in Latin America.$h[electronic resource] 260 $c2014 520 $aRice breeding has made important contributions to Latin America. More than 400 cultivars were released from 1975 to 2012, which helped to raise total production to >27 million tonnes obtained from 5.7 million hectares (average for 2010-2012). Rice production provides ~US$8.8 billion for thousands of farmers in Latin America and the Caribbean (LAC). The result of higher yields in the irrigated sector was to triple rice production in LAC while area did not grow, thus preserving more fragile environments. Several estimates on genetic gains for grain yield have been carried out in LAC. In temperate irrigated rice, the estimates are around 1.5-2.6% per year. In the tropical irrigated, it is ~1% and in the upland rice the estimate is ~1.4% per year. Different breeding strategies, including pedigree, modified bulk, recurrent selection methods, anther culture, interspecific crosses, composite populations, quantitative trait loci (QTL) introgression, and recombinant inbred lines, accompanied by shuttle breeding schemes, direct seeding, and evaluation/selection in hot spots for main diseases are being used by CIAT and NARES in the region. In this process, methods for screening for diseases and other stresses were established. Networking has been a cornerstone for success and several networks such as INGER, FLAR, and HIAAL were created. Looking forward, as farmers' yields are approaching the genetic yield potential exhibited by current cultivars, as a result of improved agronomic management, a new breakthrough is needed in terms of more productive cultivars. To achieve this goal, a strategy is needed that includes strong pipelines focused on specific environments and markets; better product profiling; integration between discovery, development, and delivery; and new breeding strategies using cutting-edge technologies and new breeding methods to accelerate genetic gains. 650 $aARROZ 650 $aFITOMEJORAMIENTO 650 $aLATINOAMERICA 653 $aRICE 700 1 $aTORRES, E.A. 700 1 $aCHATEL, M. 700 1 $aMOSQUERA, G. 700 1 $aDUITAMA, J. 700 1 $aISHITANI, M. 700 1 $aSELVARAJ, M. 700 1 $aDEDICOVA, B. 700 1 $aTOHME, J. 700 1 $aGRENIER, C. 700 1 $aLORIEUX, M. 700 1 $aCRUZ, M. 700 1 $aBERRÍO, L. 700 1 $aCORREDOR, E. 700 1 $aZORRILLA DE SAN MARTÍN, G. 700 1 $aBRESEGHELLO, F. 700 1 $aPEIXOTO, O. 700 1 $aCOLOMBARI FILHO, J.M. 700 1 $aCASTRO, A. PEREIRA DE 700 1 $aLOPES, S.I. GINDRI 700 1 $aBARBOSA, M. 700 1 $aFUNCK, G.R. DALTROZZO 700 1 $aBLANCO, P.H. 700 1 $aPÉREZ DE VIDA, F. 700 1 $aMOLINA, F. 700 1 $aROSAS, J.E. 700 1 $aMARTÍNEZ, S. 700 1 $aBONNECARRERE, V. 700 1 $aCARRACELAS, G. 700 1 $aMARIN, A. 700 1 $aCORREA-VICTORIA, F. 700 1 $aCAMARGO, I. 700 1 $aBRUZZONE, C.B . 773 $tPlant Breeding Reviews, 2014$gv.38, p. 187-277., 2014
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