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Biblioteca (s) : |
INIA Treinta y Tres. |
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Fecha : |
19/05/2016 |
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Actualizado : |
10/10/2019 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Autor : |
SINCLAIR, K.D.; YULDIZ, S.; QUINTANS, G.; GEBBIE, F.E.; BROADBENT, P.J. |
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Afiliación : |
Scottish Agricultural College, Aberdeen.; Scottish Agricultural College, Aberdeen; GRACIELA QUINTANS ILARIA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. Stottish Agricultural College, Aberdeen.; Scottish Agricultural College, Aberdeen.; Scottish Agricultural College, Aberdeen. |
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Título : |
Annual energy intake and the metabolic and reproductive performance of beef cows differing in body size and milk potential. |
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Fecha de publicación : |
1998 |
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Fuente / Imprenta : |
Animal Science, 1998, v. 66, p. 657-666. |
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DOI : |
10.1017/S135772980000922X |
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Idioma : |
Inglés |
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Contenido : |
The metabolic status and reproductive performance of four pure breeds of beef cow (small size and low milk potential, Aberdeen Angus; small size and high milk potential, Welsh Black; large size and low milk potential, Charolais; and large size and high milk potential, Simmental) were monitored during their first two parities. Heifers from each breed were allocated to one of two levels of annual energy intake relative to metabolic body weight (M075) (mean daily intakes equivalent to 705 and 820 kj/kg M0·75) in a factorial design. In the 1st year 64 heifers (eight per treatment) which had calved as a consequence of first or second service were selected for the experiment. In the 2nd year 40 of these animals (five per treatment) which held to first or second service remained on experiment. Animals were housed all year round and given diets designed to represent energy intakes while grazing during the summer and conserved feeding during the winter. Pregnancy was established in late July of each year using a combination of oestrous synchronization and artificial insemination. Blood samples were collected at monthly intervals from weaning in November until calving in May; three times weekly from calving until oestrous synchronization (11 weeks later); and fortnightly thereafter until weaning.
For the annual levels of dietary energy intake offered, two breeds (Welsh Black and Charolais) exhibited relatively high growth rates and had the longest post-partum anovulatory periods; and Charolais cows also had the poorest conception rates of all breeds. Relatively lean cows at calving (body condition score < 2·5 units) were sensitive, in terms of the duration of the anovulatory period, to live-weight loss during the early post-partum period, particularly when blood glucose levels were low, whereas relatively fat cows at calving (body condition score > 2·5 units) were not. The data suggest: (i) that mechanisms controlling the anabolic processes governing maternal growth are antagonistic towards those that control reproduction; and (ii) the catabolism of lean tissue rather than fat tissue during the early post-partum period is also antagonistic towards the mechanisms that govern reproductive function in cows. MenosThe metabolic status and reproductive performance of four pure breeds of beef cow (small size and low milk potential, Aberdeen Angus; small size and high milk potential, Welsh Black; large size and low milk potential, Charolais; and large size and high milk potential, Simmental) were monitored during their first two parities. Heifers from each breed were allocated to one of two levels of annual energy intake relative to metabolic body weight (M075) (mean daily intakes equivalent to 705 and 820 kj/kg M0·75) in a factorial design. In the 1st year 64 heifers (eight per treatment) which had calved as a consequence of first or second service were selected for the experiment. In the 2nd year 40 of these animals (five per treatment) which held to first or second service remained on experiment. Animals were housed all year round and given diets designed to represent energy intakes while grazing during the summer and conserved feeding during the winter. Pregnancy was established in late July of each year using a combination of oestrous synchronization and artificial insemination. Blood samples were collected at monthly intervals from weaning in November until calving in May; three times weekly from calving until oestrous synchronization (11 weeks later); and fortnightly thereafter until weaning.
For the annual levels of dietary energy intake offered, two breeds (Welsh Black and Charolais) exhibited relatively high growth rates and had the longest post-partum anovulatory periods; and... Presentar Todo |
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Palabras claves : |
BEEF COWS; ENERGY INTAKE; GENOTYPES; METABOLITES; REPRODUCTION. |
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Thesagro : |
BOVINOS DE CARNE; CONSUMO DE ENERGIA; GENOTIPOS; METABOLITOS; REPRODUCCION ANIMAL. |
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Asunto categoría : |
-- |
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Marc : |
LEADER 03109naa a2200301 a 4500
001 1054828
005 2019-10-10
008 1998 bl uuuu u00u1 u #d
024 7 $a10.1017/S135772980000922X$2DOI
100 1 $aSINCLAIR, K.D.
245 $aAnnual energy intake and the metabolic and reproductive performance of beef cows differing in body size and milk potential.$h[electronic resource]
260 $c1998
520 $aThe metabolic status and reproductive performance of four pure breeds of beef cow (small size and low milk potential, Aberdeen Angus; small size and high milk potential, Welsh Black; large size and low milk potential, Charolais; and large size and high milk potential, Simmental) were monitored during their first two parities. Heifers from each breed were allocated to one of two levels of annual energy intake relative to metabolic body weight (M075) (mean daily intakes equivalent to 705 and 820 kj/kg M0·75) in a factorial design. In the 1st year 64 heifers (eight per treatment) which had calved as a consequence of first or second service were selected for the experiment. In the 2nd year 40 of these animals (five per treatment) which held to first or second service remained on experiment. Animals were housed all year round and given diets designed to represent energy intakes while grazing during the summer and conserved feeding during the winter. Pregnancy was established in late July of each year using a combination of oestrous synchronization and artificial insemination. Blood samples were collected at monthly intervals from weaning in November until calving in May; three times weekly from calving until oestrous synchronization (11 weeks later); and fortnightly thereafter until weaning. For the annual levels of dietary energy intake offered, two breeds (Welsh Black and Charolais) exhibited relatively high growth rates and had the longest post-partum anovulatory periods; and Charolais cows also had the poorest conception rates of all breeds. Relatively lean cows at calving (body condition score < 2·5 units) were sensitive, in terms of the duration of the anovulatory period, to live-weight loss during the early post-partum period, particularly when blood glucose levels were low, whereas relatively fat cows at calving (body condition score > 2·5 units) were not. The data suggest: (i) that mechanisms controlling the anabolic processes governing maternal growth are antagonistic towards those that control reproduction; and (ii) the catabolism of lean tissue rather than fat tissue during the early post-partum period is also antagonistic towards the mechanisms that govern reproductive function in cows.
650 $aBOVINOS DE CARNE
650 $aCONSUMO DE ENERGIA
650 $aGENOTIPOS
650 $aMETABOLITOS
650 $aREPRODUCCION ANIMAL
653 $aBEEF COWS
653 $aENERGY INTAKE
653 $aGENOTYPES
653 $aMETABOLITES
653 $aREPRODUCTION
700 1 $aYULDIZ, S.
700 1 $aQUINTANS, G.
700 1 $aGEBBIE, F.E.
700 1 $aBROADBENT, P.J.
773 $tAnimal Science, 1998$gv. 66, p. 657-666.
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Registro original : |
INIA Treinta y Tres (TT) |
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Registro completo
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Biblioteca (s) : |
INIA Las Brujas. |
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Fecha actual : |
21/02/2014 |
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Actualizado : |
12/10/2018 |
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Tipo de producción científica : |
Documentos |
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Autor : |
MAESO, D.; MARTINEZ, A.; FEDERICI, M.; GONCALVEZ, L.; SILVERA, M.; CABRERA, D.; NUÑEZ, S.; WALASEK, W.; GIUNCHEDI, L. |
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Afiliación : |
DIEGO CESAR MAESO TOZZI, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; ANABEL LEE MARTINEZ BENGOCHEA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; MARIA TERESA FEDERICI RODRIGUEZ, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; ANA LUCIA GONCALVEZ, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; MARIANA SILVERA ORREGO, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; CARLOS DANILO CABRERA BOLOGNA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; SATURNINO NUÑEZ BUA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; WILMA GLADYS WALASEK UVIEDO, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; LUCIANO GIUNCHEDI. |
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Título : |
El decaimiento del peral en Uruguay: generalidades y trabajos experimentales de INIA Las Brujas. |
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Fecha de publicación : |
2012 |
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Fuente / Imprenta : |
In: INIA (Instituto Nacional de Investigación Agropecuaria); Programa Nacional Producción Frutícola. Frutales de pepita. Seminario de actualización técnica. Canelones (UY): INIA Las Brujas, 2012. |
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Páginas : |
p. 51-68. |
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Serie : |
(INIA Serie Actividades de Difusión; 687) |
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ISSN : |
1688-9258 |
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Idioma : |
Español |
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Contenido : |
El decaimiento del peral, ?pear decline? o ?moria del pero?, es una enfermedad que afecta al cultivo en casi todas las zonas productoras del mundo.
El agente causal es un fitoplasma (Candidatus phytoplasma pyri), organismo relacionado con las bacterias gram positivas (Eubacteria?Mollicute), sin pared celular (por lo que adopta diferentes formas, pleomorfo) que habita en el floema de las plantas afectadas. |
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Thesagro : |
FRUTALES DE PEPITA; FRUTICULTURA; PERAL. |
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Asunto categoría : |
F01 Cultivo |
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URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/11478/1/sad-687-p.51-68.pdf
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Marc : |
LEADER 01350naa a2200289 a 4500
001 1012526
005 2018-10-12
008 2012 bl uuuu u00u1 u #d
022 $a1688-9258
100 1 $aMAESO, D.
245 $aEl decaimiento del peral en Uruguay$bgeneralidades y trabajos experimentales de INIA Las Brujas.
260 $c2012
300 $ap. 51-68.
490 $a(INIA Serie Actividades de Difusión; 687)
520 $aEl decaimiento del peral, ?pear decline? o ?moria del pero?, es una enfermedad que afecta al cultivo en casi todas las zonas productoras del mundo. El agente causal es un fitoplasma (Candidatus phytoplasma pyri), organismo relacionado con las bacterias gram positivas (Eubacteria?Mollicute), sin pared celular (por lo que adopta diferentes formas, pleomorfo) que habita en el floema de las plantas afectadas.
650 $aFRUTALES DE PEPITA
650 $aFRUTICULTURA
650 $aPERAL
700 1 $aMARTINEZ, A.
700 1 $aFEDERICI, M.
700 1 $aGONCALVEZ, L.
700 1 $aSILVERA, M.
700 1 $aCABRERA, D.
700 1 $aNUÑEZ, S.
700 1 $aWALASEK, W.
700 1 $aGIUNCHEDI, L.
773 $tIn: INIA (Instituto Nacional de Investigación Agropecuaria); Programa Nacional Producción Frutícola. Frutales de pepita. Seminario de actualización técnica. Canelones (UY): INIA Las Brujas, 2012.
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