| |
|
|
 | Acceso al texto completo restringido a Biblioteca INIA Las Brujas. Por información adicional contacte bibliolb@inia.org.uy. |
|
Registro completo
|
|
Biblioteca (s) : |
INIA Las Brujas. |
|
Fecha : |
29/01/2020 |
|
Actualizado : |
29/01/2020 |
|
Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
|
Autor : |
CONDON, F.; GUSTUS, CH.; RASMUSSON, D.C.; SMITH, K.P. |
|
Afiliación : |
FEDERICO CONDON PRIANO, Dep. of Agronomy and Plant Genetics, Univ. of Minnesota, St. Paul, MN, United States: INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; CHARLES GUSTUS, Dep. of Agronomy and Plant Genetics, Univ. of Minnesota, St. Paul, MN, United States; DONALD C. RASMUSSON, Dep. of Agronomy and Plant Genetics, Univ. of Minnesota, St. Paul, MN, United States; KEVIN P. SMITH, Dep. of Agronomy and Plant Genetics, Univ. of Minnesota, St. Paul, MN, United States. |
|
Título : |
Effect of advanced cycle breeding on genetic diversity in barley breeding germplasm. |
|
Fecha de publicación : |
2008 |
|
Fuente / Imprenta : |
Crop Science, May 2008, Volume 48, Issue 3, Pages 1027-1036. Doi: https://doi.org/10.2135/cropsci2007.07.0415 |
|
ISSN : |
0011-183X |
|
DOI : |
10.2135/cropsci2007.07.0415 |
|
Idioma : |
Inglés |
|
Notas : |
Article history: Published May, 2008. |
|
Contenido : |
ABSTRACT.
Plant breeding that emphasizes crosses among elite parents in a closed population (advanced cycle breeding) is presumed to decrease genetic diversity. To assess the effect of plant breeding on allelic diversity, we evaluated regional ancestors, parental lines, and cultivar candidates from the University of Minnesota six-rowed barley (Hordeum vulgare L.) breeding program between 1958 and 1998 using pedigree information, 70 simple sequence repeat (SSR) markers, and a gene specific marker. Pedigree and SSR allelic diversity indices revealed a decrease in genetic diversity, from an average of 5.89 alleles per locus in the ancestors group to 2.34 alleles per locus in the fourth decade of breeding. A correspondence analysis showed differentiation in the germplasm with time. At specific loci, we detected both reductions and no change in the number of alleles over time. Several marker loci that demonstrated a reduction in number of alleles were associated with major loci for disease resistance or malting quality and were presumably under selection during breeding. Assessment of locus-specific allelic variation across the genome in breeding germplasm should identify both the regions of the genome that should be conserved and the regions of the genome where there are opportunities to introgress new allelic diversity without disrupting desirable gene complexes.
© Crop Science Society of America. All rights reserved. |
|
Palabras claves : |
BARLEY; HORDEUM. |
|
Thesagro : |
CEBADA. |
|
Asunto categoría : |
F01 Cultivo |
|
Marc : |
LEADER 02164naa a2200229 a 4500
001 1060710
005 2020-01-29
008 2008 bl uuuu u00u1 u #d
022 $a0011-183X
024 7 $a10.2135/cropsci2007.07.0415$2DOI
100 1 $aCONDON, F.
245 $aEffect of advanced cycle breeding on genetic diversity in barley breeding germplasm.$h[electronic resource]
260 $c2008
500 $aArticle history: Published May, 2008.
520 $aABSTRACT. Plant breeding that emphasizes crosses among elite parents in a closed population (advanced cycle breeding) is presumed to decrease genetic diversity. To assess the effect of plant breeding on allelic diversity, we evaluated regional ancestors, parental lines, and cultivar candidates from the University of Minnesota six-rowed barley (Hordeum vulgare L.) breeding program between 1958 and 1998 using pedigree information, 70 simple sequence repeat (SSR) markers, and a gene specific marker. Pedigree and SSR allelic diversity indices revealed a decrease in genetic diversity, from an average of 5.89 alleles per locus in the ancestors group to 2.34 alleles per locus in the fourth decade of breeding. A correspondence analysis showed differentiation in the germplasm with time. At specific loci, we detected both reductions and no change in the number of alleles over time. Several marker loci that demonstrated a reduction in number of alleles were associated with major loci for disease resistance or malting quality and were presumably under selection during breeding. Assessment of locus-specific allelic variation across the genome in breeding germplasm should identify both the regions of the genome that should be conserved and the regions of the genome where there are opportunities to introgress new allelic diversity without disrupting desirable gene complexes. © Crop Science Society of America. All rights reserved.
650 $aCEBADA
653 $aBARLEY
653 $aHORDEUM
700 1 $aGUSTUS, CH.
700 1 $aRASMUSSON, D.C.
700 1 $aSMITH, K.P.
773 $tCrop Science, May 2008, Volume 48, Issue 3, Pages 1027-1036. Doi: https://doi.org/10.2135/cropsci2007.07.0415
Descargar
Esconder MarcPresentar Marc Completo |
|
Registro original : |
INIA Las Brujas (LB) |
|
|
Biblioteca
|
Identificación
|
Origen
|
Tipo / Formato
|
Clasificación
|
Cutter
|
Registro
|
Volumen
|
Estado
|
Volver
|
|
|
| Acceso al texto completo restringido a Biblioteca INIA Las Brujas. Por información adicional contacte bibliolb@inia.org.uy. |
|
Registro completo
|
|
Biblioteca (s) : |
INIA Las Brujas; INIA Treinta y Tres. |
|
Fecha actual : |
01/11/2021 |
|
Actualizado : |
05/11/2021 |
|
Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
|
Circulación / Nivel : |
Internacional - -- |
|
Autor : |
DE AZEVEDO, E.B.; SAVIAN, J.V.; DO AMARAL, G. A.; DE DAVID, D. B.; GERE, J.I.; MOURA, M.; BREMM, C.; JOCHIMS, F.; ZUBIETA, A. S.; GONDA, H. L.; BAYER, C.; DE FACCIO CARVALHO, P.C. |
|
Afiliación : |
EDUARDO BOHRER DE AZEVEDO, Federal University of Pampa, Itaqui, RS, Brazil; JEAN VICTOR SAVIAN, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; GLÁUCIA AZEVEDO DO AMARAL, Department of Agricultural Diagnosis and Research, Hulha Negra, RS, Brazil; DIEGO BITENCOURT DE DAVID, Department of Agricultural Diagnosis and Research, São Gabriel, RS, Brazil; JOSÉ IGNACIO GERE, Unidad de Investigaciones Y Desarrollo de Las Ingenierías, Universidad Tecnológica Nacional, Consejo Nacional de Investigaciones Científcas Y Técnicas, Ciudad Autónoma de Buenos Aires, Argentina; MARTA MOURA KOHMANN, Range Cattle Research and Education Center, University of Florida, Ona, FL, USA; CAROLINA BREMM, Grazing Ecology Research Group, Federal University of Rio Grande Do Sul, Porto Alegre, RS, Brazil; FELIPE JOCHIMS, Research Center for Family Farming (Epagri/Cepaf), Santa Catarina Research and Rural Extension Company (Epagri), Chapecó, SC, Brazil; ANGEL SÁNCHEZ ZUBIETA, Department of Agricultural Diagnosis and Research, Hulha Negra, RS, Brazil; HORACIO LEANDRO GONDA, Swedish University of Agricultural Sciences, Uppsala, Sweden; CIMÉLIO BAYER, Department of Soil Science, Federal University of Rio Grande Do Sul, Porto Alegre, RS, Brazil; PAULO CÉSAR DE FACCIO CARVALHO, Department of Agricultural Diagnosis and Research, Hulha Negra, RS, Brazil. |
|
Título : |
Feed intake, methane yield, and efciency of utilization of energy and nitrogen by sheep fed tropical grasses. |
|
Fecha de publicación : |
2021 |
|
Fuente / Imprenta : |
Tropical Animal Health and Production, 2021, volume 53, Article number 452. doi: https://doi.org/10.1007/s11250-021-02928-4 |
|
DOI : |
10.1007/s11250-021-02928-4 |
|
Idioma : |
Inglés |
|
Notas : |
Article history: Received: 10 July 2020; Accepted: 10 September 2021; Published online: 18 September 2021. |
|
Contenido : |
ABSTRACT. - Forage allowance impacts dry matter (DM) intake and the use of nutrients by ruminants. The efficient use of protein and energy from pasture is related to better livestock performance and lower environmental impacts. The aims of this study were to evaluate the effect of forage allowance levels on intake, digestibility, nitrogen (N) and energy balance, and methane (CH4) emissions by lambs fed fresh pearl millet [Pennisetum americanum (L.) Leeke]. An indoor trial was performed using lambs in a completely randomized design with four treatments [forage allowance at 1.5, 2.0, 2.5 kg DM/100 kg of live weight (LW), and ad libitum allowing 20% of refusals] and four replicates (lambs). Forage intake, digestibility, total urine and feces excretion, and CH4 emission were measured to calculate N and energy balances. An increase in forage allowance resulted in a linear increase in lamb forage intake, N retention, and metabolizable energy intake. Moreover, lamb CH4 emission (g/
day) also increased with greater forage allowance, while CH4 yield decreased linearly as forage allowance increased. Our results indicate that maximizing forage intake improves N and energy use efficiency and mitigates CH4 yield and decreases CH4 conversion factor (Ym) by lambs fed pearl millet forage. Thus, management strategies that optimize intake of tropical forages by ruminants improve the use of nutrients ingested and mitigates negative impacts to the environment.
© The Author(s), under exclusive licence to Springer Nature B.V. 2021 MenosABSTRACT. - Forage allowance impacts dry matter (DM) intake and the use of nutrients by ruminants. The efficient use of protein and energy from pasture is related to better livestock performance and lower environmental impacts. The aims of this study were to evaluate the effect of forage allowance levels on intake, digestibility, nitrogen (N) and energy balance, and methane (CH4) emissions by lambs fed fresh pearl millet [Pennisetum americanum (L.) Leeke]. An indoor trial was performed using lambs in a completely randomized design with four treatments [forage allowance at 1.5, 2.0, 2.5 kg DM/100 kg of live weight (LW), and ad libitum allowing 20% of refusals] and four replicates (lambs). Forage intake, digestibility, total urine and feces excretion, and CH4 emission were measured to calculate N and energy balances. An increase in forage allowance resulted in a linear increase in lamb forage intake, N retention, and metabolizable energy intake. Moreover, lamb CH4 emission (g/
day) also increased with greater forage allowance, while CH4 yield decreased linearly as forage allowance increased. Our results indicate that maximizing forage intake improves N and energy use efficiency and mitigates CH4 yield and decreases CH4 conversion factor (Ym) by lambs fed pearl millet forage. Thus, management strategies that optimize intake of tropical forages by ruminants improve the use of nutrients ingested and mitigates negative impacts to the environment.
© The Author(s), under exclusive l... Presentar Todo |
|
Palabras claves : |
Forage allowance; Forage digestibility; Greenhouse gas emissions; Nutrient use; Pearl millet. |
|
Asunto categoría : |
F01 Cultivo |
|
Marc : |
LEADER 02685naa a2200337 a 4500
001 1062511
005 2021-11-05
008 2021 bl uuuu u00u1 u #d
024 7 $a10.1007/s11250-021-02928-4$2DOI
100 1 $aDE AZEVEDO, E.B.
245 $aFeed intake, methane yield, and efciency of utilization of energy and nitrogen by sheep fed tropical grasses.$h[electronic resource]
260 $c2021
500 $aArticle history: Received: 10 July 2020; Accepted: 10 September 2021; Published online: 18 September 2021.
520 $aABSTRACT. - Forage allowance impacts dry matter (DM) intake and the use of nutrients by ruminants. The efficient use of protein and energy from pasture is related to better livestock performance and lower environmental impacts. The aims of this study were to evaluate the effect of forage allowance levels on intake, digestibility, nitrogen (N) and energy balance, and methane (CH4) emissions by lambs fed fresh pearl millet [Pennisetum americanum (L.) Leeke]. An indoor trial was performed using lambs in a completely randomized design with four treatments [forage allowance at 1.5, 2.0, 2.5 kg DM/100 kg of live weight (LW), and ad libitum allowing 20% of refusals] and four replicates (lambs). Forage intake, digestibility, total urine and feces excretion, and CH4 emission were measured to calculate N and energy balances. An increase in forage allowance resulted in a linear increase in lamb forage intake, N retention, and metabolizable energy intake. Moreover, lamb CH4 emission (g/ day) also increased with greater forage allowance, while CH4 yield decreased linearly as forage allowance increased. Our results indicate that maximizing forage intake improves N and energy use efficiency and mitigates CH4 yield and decreases CH4 conversion factor (Ym) by lambs fed pearl millet forage. Thus, management strategies that optimize intake of tropical forages by ruminants improve the use of nutrients ingested and mitigates negative impacts to the environment. © The Author(s), under exclusive licence to Springer Nature B.V. 2021
653 $aForage allowance
653 $aForage digestibility
653 $aGreenhouse gas emissions
653 $aNutrient use
653 $aPearl millet
700 1 $aSAVIAN, J.V.
700 1 $aDO AMARAL, G. A.
700 1 $aDE DAVID, D. B.
700 1 $aGERE, J.I.
700 1 $aMOURA, M.
700 1 $aBREMM, C.
700 1 $aJOCHIMS, F.
700 1 $aZUBIETA, A. S.
700 1 $aGONDA, H. L.
700 1 $aBAYER, C.
700 1 $aDE FACCIO CARVALHO, P.C.
773 $tTropical Animal Health and Production, 2021, volume 53, Article number 452. doi: https://doi.org/10.1007/s11250-021-02928-4
Descargar
Esconder MarcPresentar Marc Completo |
|
Registro original : |
INIA Las Brujas (LB) |
|
|
Biblioteca
|
Identificación
|
Origen
|
Tipo / Formato
|
Clasificación
|
Cutter
|
Registro
|
Volumen
|
Estado
|
Volver
|
| Expresión de búsqueda válido. Check! |
|
|
