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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 : |
21/02/2014 |
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Actualizado : |
08/10/2019 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Autor : |
YATES, R.J.; HOWIESON, J.G.; REAL, D.; REEVE, W.G.; VIVAS-MARFISI, A.; O´HARA, G.W. |
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Afiliación : |
DANIEL REAL FERREIRO, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
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Título : |
Evidence of selection for effective nodulation in the Trifolium spp. symbiosis with Rhizobium leguminosarum biovar trifolii. |
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Fecha de publicación : |
2005 |
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Fuente / Imprenta : |
Australian Journal of Experimental Agriculture, 2005, v. 45, no. 2-3, p. 189-198. |
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DOI : |
10.1071/EA03168 |
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Idioma : |
Inglés |
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Notas : |
Article history: Received 8 August 2003 // Accepted 17 June 2004. |
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Contenido : |
Abstract. The pasture-breeding program to improve production in the natural grasslands in Uruguay has acknowledged that indigenous Rhizobium strains are incompatible with introduced Mediterranean clovers. In an attempt to understand and overcome this problem, a cross-row experiment was set up in 1999 in a basaltic, acid soil in Glencoe, Uruguay, to follow the survival and performance of 9 exotic strains of Rhizobium leguminosarum bv. trifolii. This paper reports on the ability of the introduced strains to compete for nodule occupancy of Mediterranean clover hosts and impacts of the introduced strains on the productivity of the indigenous Uruguayan clover Trifolium polymorphum. Strain WSM1325 was a superior inoculant and remained highly persistent and
competitive for the effective symbiosis with the Mediterranean hosts, T. purpureum and T. repens, in the Uruguayan environment in the third year of the experiment. The Mediterranean hosts (T. purpureum and T. repens) nodulated with the introduced strains but did not nodulate with any indigenous R. leguminosarum bv. trifolii typed from nodules of T. polymorphum. Conversely, there were no nodules on the Uruguayan host T. polymorphum that
contained introduced R. leguminosarum bv. trifolii. These results reveal the establishment of effective symbioses between strains of R. leguminosarum bv. trifolii and clover even though the soil contained ineffective R. leguminosarum bv. trifolii for all hosts. We believe our results are the first reported example of -selective- nodulation for an effective symbiosis in situ with annual and perennial clovers in acid soils. MenosAbstract. The pasture-breeding program to improve production in the natural grasslands in Uruguay has acknowledged that indigenous Rhizobium strains are incompatible with introduced Mediterranean clovers. In an attempt to understand and overcome this problem, a cross-row experiment was set up in 1999 in a basaltic, acid soil in Glencoe, Uruguay, to follow the survival and performance of 9 exotic strains of Rhizobium leguminosarum bv. trifolii. This paper reports on the ability of the introduced strains to compete for nodule occupancy of Mediterranean clover hosts and impacts of the introduced strains on the productivity of the indigenous Uruguayan clover Trifolium polymorphum. Strain WSM1325 was a superior inoculant and remained highly persistent and
competitive for the effective symbiosis with the Mediterranean hosts, T. purpureum and T. repens, in the Uruguayan environment in the third year of the experiment. The Mediterranean hosts (T. purpureum and T. repens) nodulated with the introduced strains but did not nodulate with any indigenous R. leguminosarum bv. trifolii typed from nodules of T. polymorphum. Conversely, there were no nodules on the Uruguayan host T. polymorphum that
contained introduced R. leguminosarum bv. trifolii. These results reveal the establishment of effective symbioses between strains of R. leguminosarum bv. trifolii and clover even though the soil contained ineffective R. leguminosarum bv. trifolii for all hosts. We believe our results are the first... Presentar Todo |
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Palabras claves : |
CAMPO NATURAL; NATURAL GRASSLAND; URUGUAY. |
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Thesagro : |
PASTURAS. |
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Asunto categoría : |
A50 Investigación agraria |
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Marc : |
LEADER 02456naa a2200253 a 4500
001 1017847
005 2019-10-08
008 2005 bl uuuu u00u1 u #d
024 7 $a10.1071/EA03168$2DOI
100 1 $aYATES, R.J.
245 $aEvidence of selection for effective nodulation in the Trifolium spp. symbiosis with Rhizobium leguminosarum biovar trifolii.$h[electronic resource]
260 $c2005
500 $aArticle history: Received 8 August 2003 // Accepted 17 June 2004.
520 $aAbstract. The pasture-breeding program to improve production in the natural grasslands in Uruguay has acknowledged that indigenous Rhizobium strains are incompatible with introduced Mediterranean clovers. In an attempt to understand and overcome this problem, a cross-row experiment was set up in 1999 in a basaltic, acid soil in Glencoe, Uruguay, to follow the survival and performance of 9 exotic strains of Rhizobium leguminosarum bv. trifolii. This paper reports on the ability of the introduced strains to compete for nodule occupancy of Mediterranean clover hosts and impacts of the introduced strains on the productivity of the indigenous Uruguayan clover Trifolium polymorphum. Strain WSM1325 was a superior inoculant and remained highly persistent and competitive for the effective symbiosis with the Mediterranean hosts, T. purpureum and T. repens, in the Uruguayan environment in the third year of the experiment. The Mediterranean hosts (T. purpureum and T. repens) nodulated with the introduced strains but did not nodulate with any indigenous R. leguminosarum bv. trifolii typed from nodules of T. polymorphum. Conversely, there were no nodules on the Uruguayan host T. polymorphum that contained introduced R. leguminosarum bv. trifolii. These results reveal the establishment of effective symbioses between strains of R. leguminosarum bv. trifolii and clover even though the soil contained ineffective R. leguminosarum bv. trifolii for all hosts. We believe our results are the first reported example of -selective- nodulation for an effective symbiosis in situ with annual and perennial clovers in acid soils.
650 $aPASTURAS
653 $aCAMPO NATURAL
653 $aNATURAL GRASSLAND
653 $aURUGUAY
700 1 $aHOWIESON, J.G.
700 1 $aREAL, D.
700 1 $aREEVE, W.G.
700 1 $aVIVAS-MARFISI, A.
700 1 $aO´HARA, G.W.
773 $tAustralian Journal of Experimental Agriculture, 2005$gv. 45, no. 2-3, p. 189-198.
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Registro original : |
INIA Tacuarembó (TBO) |
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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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Registro completo
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Biblioteca (s) : |
INIA La Estanzuela. |
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Fecha actual : |
30/05/2019 |
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Actualizado : |
10/06/2019 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Circulación / Nivel : |
Internacional - -- |
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Autor : |
ZAGO, D; CANOZZI, M.E.A.; BARCELLOS, J.O,J. |
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Afiliación : |
Department of Animal Science, Federal University of Rio Grande do Sul. Av. Bento Gonçalves n. 7712, 91540-000, Porto Alegre, RS, Brazil.; MARÍA EUGENIA ANDRIGHETTO CANOZZI, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; JULIO BARCELLOS, Department of Animal Science, Federal University of Rio Grande do Sul. Av. Bento Gonçalves n. 7712, 91540-000, Porto Alegre, RS, Brazil. |
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Título : |
Pregnant cow nutrition and its effects on foetal weight-a meta-analysis. |
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Fecha de publicación : |
2019 |
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Fuente / Imprenta : |
The Journal of Agricultural Science,Volume 157, Issue 1, January 2019 , pp. 83-95. |
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DOI : |
10.1017/S0021859619000315 |
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Idioma : |
Inglés |
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Notas : |
Article history: Received: 5 December 2018//Revised: 5 March 2019//Accepted: 3 April 2019//First published online: 9 May 2019. |
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Contenido : |
Abstract:The prenatal development of cattle has influence on productive performance throughout postnatal life. The number of muscle and fat cells that the animal will have throughout its life is determined in the foetal stage and is influenced by nutrition of the pregnant cow. A systematic review and meta-analysis was performed to evaluate the effect of different energy levels (total digestible nutrient, TDN) and crude protein (CP) supplied to pregnant cows on foetal weight at 4 (FW4) and 8 months (FW8) and calf birth weight (CBW). Four studies and six trials involving 170 animals were assessed for FW4; four studies, four trials and 156 animals for FW8 and 48 studies, 125 trials and 9053 animals for CBW. High heterogeneity across studies was presented in FW4 (I2 = 94.4%), FW8 (I2 = 91.08%) and CBW (I2 = 96.9%). Dietary TDN and CP levels did not influence FW4. The FW8 was reduced by 2.24 kg when cows were fed 100% of their CP and TDN requirements (I2 = 0%), relative to those fed 70% of their requirements during the first and second trimesters. The CBW was reduced by 0.45 kg (I2 = 96.9%) when cows were fed 130% of their CP requirements relative to other dietary CP levels. When cows were fed 140% of their TDN requirements, CBW decreased by 2.71 kg (I2 = 98.3%) relative to other TDN levels. Dietary energy or CP levels fed above the requirements to pregnant cows restrict foetal development and CBW. |
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Palabras claves : |
BEEF CATTLE; BIRTH WEIGHT; COW-CALF HERD; FOETAL PROGRAMMING; FOETAL WEIGHT; PESO FETAL; VACA PREÑADA. |
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Thesagro : |
NUTRICIÓN ANIMAL. |
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Asunto categoría : |
L51 Fisiología Animal - Nutrición |
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Marc : |
LEADER 02310naa a2200265 a 4500
001 1059794
005 2019-06-10
008 2019 bl uuuu u00u1 u #d
024 7 $a10.1017/S0021859619000315$2DOI
100 1 $aZAGO, D
245 $aPregnant cow nutrition and its effects on foetal weight-a meta-analysis.$h[electronic resource]
260 $c2019
500 $aArticle history: Received: 5 December 2018//Revised: 5 March 2019//Accepted: 3 April 2019//First published online: 9 May 2019.
520 $aAbstract:The prenatal development of cattle has influence on productive performance throughout postnatal life. The number of muscle and fat cells that the animal will have throughout its life is determined in the foetal stage and is influenced by nutrition of the pregnant cow. A systematic review and meta-analysis was performed to evaluate the effect of different energy levels (total digestible nutrient, TDN) and crude protein (CP) supplied to pregnant cows on foetal weight at 4 (FW4) and 8 months (FW8) and calf birth weight (CBW). Four studies and six trials involving 170 animals were assessed for FW4; four studies, four trials and 156 animals for FW8 and 48 studies, 125 trials and 9053 animals for CBW. High heterogeneity across studies was presented in FW4 (I2 = 94.4%), FW8 (I2 = 91.08%) and CBW (I2 = 96.9%). Dietary TDN and CP levels did not influence FW4. The FW8 was reduced by 2.24 kg when cows were fed 100% of their CP and TDN requirements (I2 = 0%), relative to those fed 70% of their requirements during the first and second trimesters. The CBW was reduced by 0.45 kg (I2 = 96.9%) when cows were fed 130% of their CP requirements relative to other dietary CP levels. When cows were fed 140% of their TDN requirements, CBW decreased by 2.71 kg (I2 = 98.3%) relative to other TDN levels. Dietary energy or CP levels fed above the requirements to pregnant cows restrict foetal development and CBW.
650 $aNUTRICIÓN ANIMAL
653 $aBEEF CATTLE
653 $aBIRTH WEIGHT
653 $aCOW-CALF HERD
653 $aFOETAL PROGRAMMING
653 $aFOETAL WEIGHT
653 $aPESO FETAL
653 $aVACA PREÑADA
700 1 $aCANOZZI, M.E.A.
700 1 $aBARCELLOS, J.O,J.
773 $tThe Journal of Agricultural Science,Volume 157, Issue 1, January 2019 , pp. 83-95.
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INIA La Estanzuela (LE) |
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