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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 : |
11/11/2014 |
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Actualizado : |
11/05/2020 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Autor : |
MONTOSSI, F.; HODGSON, J.; MORRIS, S.T.; RISSO, D.; GORDON, I.L. |
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Afiliación : |
FABIO MARCELO MONTOSSI PORCHILE, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; JONATHAN M. HODGSON, College of Sciences, Massey University, Palmerston North, New Zealand; S. T. MORRIS, College of Sciences, Massey University, Palmerston North, New Zealand; DIEGO FERNANDO RISSO RIET, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; I. L. GORDON, College of Sciences, Massey University, Palmerston North, New Zealand. |
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Título : |
A comparative study of herbage intake, ingestive behaviour and diet selection, and effects of condensed tannins upon body and wool growth in lambs grazing Yorkshire fog (Holcus lanatus) and annual ryegrass (Lolium multiflorum) dominant swards. |
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Fecha de publicación : |
2001 |
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Fuente / Imprenta : |
Journal of Agricultural Science, 2001, v. 136, no. 2, p. 241-251. DOI: https://doi.org/10.1017/S0021859601008668 |
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DOI : |
10.1017/S0021859601008668 |
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Idioma : |
Inglés |
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Notas : |
Article history: Revised MS received 19 April 2000 // .Published online by Cambridge University Press 25 April 2001. |
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Contenido : |
An experiment was carried out from August to early November 1994 to examine differences in diet selection, herbage intake, grazing behaviour and animal performance between weaned lambs rotationally grazing swards of annual ryegrass (Lolium multiflorum)}white clover (Trifolium repens)
and Yorkshire fog (Holcus lanatus)}T. repens with or without Lotus corniculatus. There were four replicate groups of six lambs per treatment. The effects of condensed tannins (CT) on lamb production were assessed by twice-daily oral administration of 10 g polyethylene glycol (PEG; molecular weight 4000) to half the lambs on each sward. The Lotus content of all swards was very low, and results are presented here for main sward comparisons meaned over lotus treatments. Overall mean estimates of pre-grazing herbage mass and sward surface height for the annual ryegrass and Yorkshire fog swards respectively, were 5820 v. 4360³190 kg DM}ha (P!0±001) and 29 v. 21³0±6 cm (P!0±001). The coefficient of organic matter digestibility (OMD) of the diet selected and herbage intake were higher on Yorkshire fog than on annual ryegrass (0±78 v. 0±74³0±080 g}kg; P!0±05, and 1070 v. 860³57 g OM per lamb per day, P!0±05 respectively), reflecting the higher content in the diet of grass green leaf (980 v. 930 g}kg³14 g}kg, P!0±05) and the lower content of dead material (80 v. 110³15 g}kg, P!0±08). Lambs grazing on Yorkshire fog swards had higher clean wool growth rate (1470 v. 1280³30 mg}cm per day, P!0±01) and greater fibre diameter (31 v. 29³0±2 µ, P!0±001), greater liveweight gain (152 v. 108³5±5 g}day, P!0±001), final weight (42 v.
38³0±5 kg, P!0±001), carcass weight gain (89 v. 69³2±5 g}day, P!0±001), carcass weight (19 v. 17³0±3 kg, P!0±001) and soft tissue thickness (GR value 11 v. 8³0±5 mm, P!0±01), and lower faecal egg counts (FEC; square root transferred values 9±2 v. 11±0³0±4 eggs}g fresh faeces, P!0±01)
than lambs grazing annual ryegrass swards. Similar dietary concentrations of condensed tannins (CT) between Yorkshire fog and annual ryegrass swards (4±2 v. 3±7 DM³0±2 g}kg, P!0±08) increased clean wool growth (1440 v. 1310³32 mg}cm# per day, P!0±05), fibre diameter (30±7 v. 29±5³0±21 µ,
P!0±01) and liveweight gain (141 v. 120³4±3 g per lamb per day, P!0±01), although differences in carcass weight (17±9 v. 18±2³0±3 kg) and FEC transformed values (9±6 v. 11±0³0±6 eggs}g fresh faeces) were not significant. The effects of CT on animal performance were greater in Yorkshire fog
swards. CT had no significant effects on diet selection, herbage intake and grazing behaviour patterns. MenosAn experiment was carried out from August to early November 1994 to examine differences in diet selection, herbage intake, grazing behaviour and animal performance between weaned lambs rotationally grazing swards of annual ryegrass (Lolium multiflorum)}white clover (Trifolium repens)
and Yorkshire fog (Holcus lanatus)}T. repens with or without Lotus corniculatus. There were four replicate groups of six lambs per treatment. The effects of condensed tannins (CT) on lamb production were assessed by twice-daily oral administration of 10 g polyethylene glycol (PEG; molecular weight 4000) to half the lambs on each sward. The Lotus content of all swards was very low, and results are presented here for main sward comparisons meaned over lotus treatments. Overall mean estimates of pre-grazing herbage mass and sward surface height for the annual ryegrass and Yorkshire fog swards respectively, were 5820 v. 4360³190 kg DM}ha (P!0±001) and 29 v. 21³0±6 cm (P!0±001). The coefficient of organic matter digestibility (OMD) of the diet selected and herbage intake were higher on Yorkshire fog than on annual ryegrass (0±78 v. 0±74³0±080 g}kg; P!0±05, and 1070 v. 860³57 g OM per lamb per day, P!0±05 respectively), reflecting the higher content in the diet of grass green leaf (980 v. 930 g}kg³14 g}kg, P!0±05) and the lower content of dead material (80 v. 110³15 g}kg, P!0±08). Lambs grazing on Yorkshire fog swards had higher clean wool growth rate (1470 v. 1280³30 mg}cm per day, P!0±01) and greate... Presentar Todo |
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Thesagro : |
GANADO BOVINO; PASTURAS; TANINOS. |
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Asunto categoría : |
L01 Ganadería |
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Marc : |
LEADER 03605naa a2200229 a 4500
001 1051564
005 2020-05-11
008 2001 bl uuuu u00u1 u #d
024 7 $a10.1017/S0021859601008668$2DOI
100 1 $aMONTOSSI, F.
245 $aA comparative study of herbage intake, ingestive behaviour and diet selection, and effects of condensed tannins upon body and wool growth in lambs grazing Yorkshire fog (Holcus lanatus) and annual ryegrass (Lolium multiflorum) dominant swards.
260 $c2001
500 $aArticle history: Revised MS received 19 April 2000 // .Published online by Cambridge University Press 25 April 2001.
520 $aAn experiment was carried out from August to early November 1994 to examine differences in diet selection, herbage intake, grazing behaviour and animal performance between weaned lambs rotationally grazing swards of annual ryegrass (Lolium multiflorum)}white clover (Trifolium repens) and Yorkshire fog (Holcus lanatus)}T. repens with or without Lotus corniculatus. There were four replicate groups of six lambs per treatment. The effects of condensed tannins (CT) on lamb production were assessed by twice-daily oral administration of 10 g polyethylene glycol (PEG; molecular weight 4000) to half the lambs on each sward. The Lotus content of all swards was very low, and results are presented here for main sward comparisons meaned over lotus treatments. Overall mean estimates of pre-grazing herbage mass and sward surface height for the annual ryegrass and Yorkshire fog swards respectively, were 5820 v. 4360³190 kg DM}ha (P!0±001) and 29 v. 21³0±6 cm (P!0±001). The coefficient of organic matter digestibility (OMD) of the diet selected and herbage intake were higher on Yorkshire fog than on annual ryegrass (0±78 v. 0±74³0±080 g}kg; P!0±05, and 1070 v. 860³57 g OM per lamb per day, P!0±05 respectively), reflecting the higher content in the diet of grass green leaf (980 v. 930 g}kg³14 g}kg, P!0±05) and the lower content of dead material (80 v. 110³15 g}kg, P!0±08). Lambs grazing on Yorkshire fog swards had higher clean wool growth rate (1470 v. 1280³30 mg}cm per day, P!0±01) and greater fibre diameter (31 v. 29³0±2 µ, P!0±001), greater liveweight gain (152 v. 108³5±5 g}day, P!0±001), final weight (42 v. 38³0±5 kg, P!0±001), carcass weight gain (89 v. 69³2±5 g}day, P!0±001), carcass weight (19 v. 17³0±3 kg, P!0±001) and soft tissue thickness (GR value 11 v. 8³0±5 mm, P!0±01), and lower faecal egg counts (FEC; square root transferred values 9±2 v. 11±0³0±4 eggs}g fresh faeces, P!0±01) than lambs grazing annual ryegrass swards. Similar dietary concentrations of condensed tannins (CT) between Yorkshire fog and annual ryegrass swards (4±2 v. 3±7 DM³0±2 g}kg, P!0±08) increased clean wool growth (1440 v. 1310³32 mg}cm# per day, P!0±05), fibre diameter (30±7 v. 29±5³0±21 µ, P!0±01) and liveweight gain (141 v. 120³4±3 g per lamb per day, P!0±01), although differences in carcass weight (17±9 v. 18±2³0±3 kg) and FEC transformed values (9±6 v. 11±0³0±6 eggs}g fresh faeces) were not significant. The effects of CT on animal performance were greater in Yorkshire fog swards. CT had no significant effects on diet selection, herbage intake and grazing behaviour patterns.
650 $aGANADO BOVINO
650 $aPASTURAS
650 $aTANINOS
700 1 $aHODGSON, J.
700 1 $aMORRIS, S.T.
700 1 $aRISSO, D.
700 1 $aGORDON, I.L.
773 $tJournal of Agricultural Science, 2001$gv. 136, no. 2, p. 241-251. DOI: https://doi.org/10.1017/S0021859601008668
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Registro original : |
INIA Tacuarembó (TBO) |
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Registro completo
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Biblioteca (s) : |
INIA La Estanzuela; INIA Las Brujas; INIA Tacuarembó. |
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Fecha actual : |
21/02/2014 |
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Actualizado : |
11/08/2015 |
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Tipo de producción científica : |
Serie Técnica |
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Autor : |
LAVECCHIA, A. |
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Afiliación : |
ANDRES PASCUAL LAVECCHIA GONZALEZ, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
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Título : |
Arroz: fertilización nitrogenada en la zona norte del país |
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Fecha de publicación : |
1991 |
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Fuente / Imprenta : |
Montevideo (Uruguay): INIA, 1991. |
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Páginas : |
20 p. |
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Serie : |
(INIA Serie Técnica ; 17) |
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ISBN : |
9974-556-16-3 |
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ISSN : |
1688-9266 |
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Idioma : |
Español |
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Contenido : |
El área de influencia de INIA-Tacuarembó abarca los departamentos de Tacuarembó, Rivera, Salto, Artigas y el noreste de Cerro Largo. El cultivo de arroz en esta región ha tenido, recientemente, una gran expansión, paso del 16% del área nacional en los años 80-86, al 21% en la zafra 88/90 con 20.000 has sembradas. En coordinación con INIA-Treinta y Tres y hasta la zafra 89/90 con el apoyo del sector arrocero privado, se han realizado estudios sobre el cultivo de arroz en esta región desde la zafra 1981/82 hasta la fecha. Una de las líneas de investigación es el manejo de la fertilización nitrogenada, factor que incide directamente en los rendimientos. Con el objetivo de obtener una información precisa sobre los efectos de fertilización nitrogenada para cada situación particular, producto de la combinación de tres factores (clima, topografía-riego y suelo), se instalaron ensayos de respuesta a este nutriente. Los ensayos se llevan a cabo en chacras de productores. |
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Thesagro : |
ABONOS NITROGENADOS; ANALISIS DEL SUELO; APLICACION DE ABONOS; ARROZ; FACTORES DE RENDIMIENTO; FERTILIZER APPLICATIONS; NITROGEN FERTILIZERS; ORYZA; RENDIMIENTO DE CULTIVOS; RESPUESTA DE LA PLANTA; RICE; URUGUAY. |
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Asunto categoría : |
--
F01 Cultivo |
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URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/2911/1/111219220807110440.pdf
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Marc : |
LEADER 01803nam a2200301 a 4500
001 1002749
005 2015-08-11
008 1991 bl uuuu u00u1 u #d
020 $a9974-556-16-3
022 $a1688-9266
100 1 $aLAVECCHIA, A.
245 $aArroz$bfertilización nitrogenada en la zona norte del país
260 $aMontevideo (Uruguay): INIA$c1991
300 $a20 p.
490 $a(INIA Serie Técnica ; 17)
520 $aEl área de influencia de INIA-Tacuarembó abarca los departamentos de Tacuarembó, Rivera, Salto, Artigas y el noreste de Cerro Largo. El cultivo de arroz en esta región ha tenido, recientemente, una gran expansión, paso del 16% del área nacional en los años 80-86, al 21% en la zafra 88/90 con 20.000 has sembradas. En coordinación con INIA-Treinta y Tres y hasta la zafra 89/90 con el apoyo del sector arrocero privado, se han realizado estudios sobre el cultivo de arroz en esta región desde la zafra 1981/82 hasta la fecha. Una de las líneas de investigación es el manejo de la fertilización nitrogenada, factor que incide directamente en los rendimientos. Con el objetivo de obtener una información precisa sobre los efectos de fertilización nitrogenada para cada situación particular, producto de la combinación de tres factores (clima, topografía-riego y suelo), se instalaron ensayos de respuesta a este nutriente. Los ensayos se llevan a cabo en chacras de productores.
650 $aABONOS NITROGENADOS
650 $aANALISIS DEL SUELO
650 $aAPLICACION DE ABONOS
650 $aARROZ
650 $aFACTORES DE RENDIMIENTO
650 $aFERTILIZER APPLICATIONS
650 $aNITROGEN FERTILIZERS
650 $aORYZA
650 $aRENDIMIENTO DE CULTIVOS
650 $aRESPUESTA DE LA PLANTA
650 $aRICE
650 $aURUGUAY
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