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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; INIA Treinta y Tres. |
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Fecha : |
18/10/2018 |
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Actualizado : |
11/10/2019 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Autor : |
LOPEZ VALIENTE, S.; MARESCA, S.; RODRÍGUEZ, A.M.; PALLADINO, R.A.; LACAU-MENGIDO, I.M.; LONG, N.M.; QUINTANS, G. |
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Afiliación : |
S. LÓPEZ VALIENTE, National Institute of Agricultural Technology (INTA). Experimental Station of Cuenca del Salado.; S. MARESCA, National Institute of Agricultural Technology (INTA). Experimental Station of Cuenca del Salado.; A.M. RODRÍGUEZ, National Institute of Agricultural Technology (INTA). Experimental Station of Cuenca del Salado.; R.A. PALLADINO, Facultad de Agronomía, Universidad de Buenos Aires. Facultad de Ciencias Agrarias, Universidad Nacional de Lomas de Zamora, Buenos Aires.; I.M. LACAU-MENGIDO, Laboratorio de Regulación Hipofisaria, Instituto de Biología y Medicina Experimental (CONICET).; N.M. LONG, Department of Animal and Veterinary Sciences. Clemson University.; GRACIELA QUINTANS ILARIA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
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Título : |
Effect of protein restriction of Angus cows during late gestation: subsequent reproductive performance and milk yield. |
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Fecha de publicación : |
2018 |
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Fuente / Imprenta : |
The Professional Animal Scientist, 2018, 34(3): 261-268. |
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DOI : |
10.15232/pas.2017-01701 |
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Idioma : |
Inglés |
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Contenido : |
Abstract:
The effect of level of CP fed during late gestation on reproductive performance and milk production was studied in multiparous cows. Sixty-eight pregnant Angus cows were used. At 121 d prepartum, cows were blocked by BW (409 ± 57 kg) and expected calving date, randomly assigned to a low-protein (LP = 6% CP) or high-protein diet (HP = 12% CP), and allocated to 12 pens per treatment.
After parturition, all cows were managed in a single group until weaning. Body weight and BCS were determined at the start of the experiment, at calving, and at weaning.
Nonesterified fatty acids, insulin, IGF-1, and glucose were determined every 24 d prepartum and nonesterified fatty acids and glucose every 38 d postpartum. Progesterone was quantified weekly to indicate luteal activity and estimate interval to first estrus. Milk production was measured until weaning. The HP cows had greater BW gain during the prepartum period (P < 0.01) and tended to gain more BCS (P = 0.06) than LP cows. The prepartum diet did not affect gestation length (P = 0.44) or interval from calving to the onset of luteal activity (P = 0.35).
Pregnancy rates, milk quality, and production were not influenced by dietary treatments. Cows in the HP treatment had greater prepartum serum urea concentrations than LP treatment (P < 0.05). In conclusion, protein level prepartum in multiparous beef cows affected the BW change at calving, without consequences on reproductive performance and milk quality and yield. |
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Palabras claves : |
LATE GESTATION; MILK YIELD; MULTIPAROUS COW; POSTPARTUM REPRODUCTIVE PERFORMANCE; PROTEIN RESTRICTION; VACAS MULTÍPARAS. |
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Thesagro : |
BOVINOS; VACAS. |
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Asunto categoría : |
L10 Genética y mejoramiento animal |
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Marc : |
LEADER 02405naa a2200301 a 4500
001 1059651
005 2019-10-11
008 2018 bl uuuu u00u1 u #d
024 7 $a10.15232/pas.2017-01701$2DOI
100 1 $aLOPEZ VALIENTE, S.
245 $aEffect of protein restriction of Angus cows during late gestation$bsubsequent reproductive performance and milk yield.$h[electronic resource]
260 $c2018
520 $aAbstract: The effect of level of CP fed during late gestation on reproductive performance and milk production was studied in multiparous cows. Sixty-eight pregnant Angus cows were used. At 121 d prepartum, cows were blocked by BW (409 ± 57 kg) and expected calving date, randomly assigned to a low-protein (LP = 6% CP) or high-protein diet (HP = 12% CP), and allocated to 12 pens per treatment. After parturition, all cows were managed in a single group until weaning. Body weight and BCS were determined at the start of the experiment, at calving, and at weaning. Nonesterified fatty acids, insulin, IGF-1, and glucose were determined every 24 d prepartum and nonesterified fatty acids and glucose every 38 d postpartum. Progesterone was quantified weekly to indicate luteal activity and estimate interval to first estrus. Milk production was measured until weaning. The HP cows had greater BW gain during the prepartum period (P < 0.01) and tended to gain more BCS (P = 0.06) than LP cows. The prepartum diet did not affect gestation length (P = 0.44) or interval from calving to the onset of luteal activity (P = 0.35). Pregnancy rates, milk quality, and production were not influenced by dietary treatments. Cows in the HP treatment had greater prepartum serum urea concentrations than LP treatment (P < 0.05). In conclusion, protein level prepartum in multiparous beef cows affected the BW change at calving, without consequences on reproductive performance and milk quality and yield.
650 $aBOVINOS
650 $aVACAS
653 $aLATE GESTATION
653 $aMILK YIELD
653 $aMULTIPAROUS COW
653 $aPOSTPARTUM REPRODUCTIVE PERFORMANCE
653 $aPROTEIN RESTRICTION
653 $aVACAS MULTÍPARAS
700 1 $aMARESCA, S.
700 1 $aRODRÍGUEZ, A.M.
700 1 $aPALLADINO, R.A.
700 1 $aLACAU-MENGIDO, I.M.
700 1 $aLONG, N.M.
700 1 $aQUINTANS, G.
773 $tThe Professional Animal Scientist, 2018, 34(3): 261-268.
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INIA Tacuarembó (TBO) |
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Registro completo
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Biblioteca (s) : |
INIA Tacuarembó. |
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Fecha actual : |
21/02/2014 |
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Actualizado : |
20/08/2019 |
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Tipo de producción científica : |
Trabajos en Congresos/Conferencias |
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Autor : |
CARRACELAS, G.; GUILPART, N.; GRASSINI, P.; ZORRILLA DE SAN MARTÍN, G.; CASSMAN, K. |
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Afiliación : |
JULIO GONZALO CARRACELAS GARRIDO, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; AgroParisTech, France.; University of Nebraska-Lincoln. USA.; GONZALO ROBERTO ZORRILLA DE SAN MARTÍN PEREYRA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; University of Nebraska-Lincoln. USA. |
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Título : |
Yield gap analysis of irrigated rice in Uruguay and comparison with other rice producing countries. [Resumen]. |
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Fecha de publicación : |
2019 |
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Fuente / Imprenta : |
ln: Congresso Brasileiro de Arroz Irrigado, 11., 13-16 agosto, Camboriú, Brasil, 2019. |
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Páginas : |
4 p. |
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Idioma : |
Español |
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Contenido : |
The Uruguayan rice sector has been one of the most successful and most integrated agricultural industries in the country. Rice yields in Uruguay have increased at one of the highest annual rates worldwide (145kg-1 ha-1 yr-1 from 2000 to 2017). However, this trend has shown a marked slowdown in recent years, which may be indicating that average rice yields approach the biophysical yield ceiling (Figure 1). Indeed average farm yields often begin to plateau when they reach 75 to 85% of the yield potential (CASSMAN et al., 2003; LOBELL et al., 2009). Determination of rice yield potential in Uruguay, is essential to identify opportunities for future yield gains. Also unknown is if the high increase in rice yield in Uruguay was partially determined or not by climate change. Due to current high inputs costs and low rice prices, keeping rice yields trend is critical for the viability and sustainability of the crop in Uruguay. The aims of this work were: firstly, to estimate rice yield potential (Yp) and current exploitable yield gaps (Yg) at regional and local-farm levels in Uruguay, secondly, to analyze current rice yield trends in Uruguay and to determine to which degree the incipient yield plateau can be attributed to a biophysical limit and thirdly to compare results with other rice producing countries included in the Global Yield Gap Atlas for which rice yield potential and yield gap estimates are available. |
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Palabras claves : |
CROP MODEL; GYGA; RICE (ORYZA SATIVA L.); SUSTAINABILITY; YIELD TREND. |
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Thesagro : |
ARROZ. |
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Asunto categoría : |
F01 Cultivo |
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URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/13134/1/Carracelas-Congreso-2019-Resumen.pdf
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Marc : |
LEADER 02170nam a2200241 a 4500
001 1027156
005 2019-08-20
008 2019 bl uuuu u01u1 u #d
100 1 $aCARRACELAS, G.
245 $aYield gap analysis of irrigated rice in Uruguay and comparison with other rice producing countries. [Resumen].$h[electronic resource]
260 $aln: Congresso Brasileiro de Arroz Irrigado, 11., 13-16 agosto, Camboriú, Brasil$c2019
300 $a4 p.
520 $aThe Uruguayan rice sector has been one of the most successful and most integrated agricultural industries in the country. Rice yields in Uruguay have increased at one of the highest annual rates worldwide (145kg-1 ha-1 yr-1 from 2000 to 2017). However, this trend has shown a marked slowdown in recent years, which may be indicating that average rice yields approach the biophysical yield ceiling (Figure 1). Indeed average farm yields often begin to plateau when they reach 75 to 85% of the yield potential (CASSMAN et al., 2003; LOBELL et al., 2009). Determination of rice yield potential in Uruguay, is essential to identify opportunities for future yield gains. Also unknown is if the high increase in rice yield in Uruguay was partially determined or not by climate change. Due to current high inputs costs and low rice prices, keeping rice yields trend is critical for the viability and sustainability of the crop in Uruguay. The aims of this work were: firstly, to estimate rice yield potential (Yp) and current exploitable yield gaps (Yg) at regional and local-farm levels in Uruguay, secondly, to analyze current rice yield trends in Uruguay and to determine to which degree the incipient yield plateau can be attributed to a biophysical limit and thirdly to compare results with other rice producing countries included in the Global Yield Gap Atlas for which rice yield potential and yield gap estimates are available.
650 $aARROZ
653 $aCROP MODEL
653 $aGYGA
653 $aRICE (ORYZA SATIVA L.)
653 $aSUSTAINABILITY
653 $aYIELD TREND
700 1 $aGUILPART, N.
700 1 $aGRASSINI, P.
700 1 $aZORRILLA DE SAN MARTÍN, G.
700 1 $aCASSMAN, K.
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